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DIPHENYLAMINE†

Chemical Identification
CAS #	122-39-4
Formula	C₁₂H₁₁N
Synonyms	anilinobenzene; DPA; phenylaniline; N-phenylaniline; N-phenylbenzenamine

Physical Properties
Physical description	Colorless, tan, amber, or brown crystalline solid with a pleasant, floral odor.
Boiling point	576°F	Molecular weight	169.2
Freezing point/melting point	127°F	Vapor pressure	1 mmHg at 227°F
Flash point	307°F	Vapor density	5.82
Specific gravity	1.16	Ionization potential	7.40 eV
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	2	NFPA fire rating	1
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	0926
Sampling group
Sampler/Sampling media	2 GFFs (37 mm) coated with sulfuric acid, in 3-piece cassette, separated by the ring section [SKC 225-9004]
Sampling time^*
Sampling volume (TWA)^*	100 L
Sampling flow rate (TWA)^*	1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	HPLC-UV
Method reference	OSHA 78 (fully validated)
Notes	Keep samples refrigerated when not in transit. Ship samples overnight with cold-packs as soon as possible.
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	10 mg/m³ (Construction and Maritime only)	REL-TWA	10 mg/m³	TLV-TWA	10 mg/m³ [1990]	PEL-TWA	10 mg/m³
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	N
Notes: There is no PEL established for General Industry 29 CFR 1910. See 29 CFR 1926.55 Table 1 and 29 CFR 1915.1000 Table Z-Shipyards.		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Diphenylamine

NIOSH: Pocket Guide to Chemical Hazards - Diphenylamine

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Diphenylamine. See annual publication for most recent information.

Last Updated Date : 06/23/2023

CYCLONITE (RDX)†

Chemical Identification
CAS #	121-82-4
Formula	C₃H₆N₆O₆
Synonyms	cyclotrimethylene trinitramine, (desensitized); cyclotrimethylenetrinitramine; hexahydro-1,3,5-trinitro-s-triazine; RDX; trimethylenetrinitramine; 1,3,5-trinitro-1,3,5-triazacyclohexane

Physical Properties
Physical description	White, crystalline powder.
Boiling point		Molecular weight	222.2
Freezing point/melting point	401°F	Vapor pressure	0.0004 mmHg at 230°F
Flash point	explodes	Vapor density
Specific gravity	1.82	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	2224
Sampling group
Sampler/Sampling media	GFF (37 mm), Type A/E [AP4003705]
Sampling time^*
Sampling volume (TWA)^*	120 L
Sampling flow rate (TWA)^*	1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	HPLC-UV
Method reference	OSHA PV2135 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method	Limit the amount of bulk submitted to 1 g or 1 mL.

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	1.5 mg/m³ (Construction and Maritime only)	REL-TWA	1.5 mg/m³	TLV-TWA	0.5 mg/m³ [1994]	PEL-TWA	0.07 mg/m³
PEL-STEL		REL-STEL	3 mg/m³	TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	Y	Skin notation	Y	Skin notation	Y	Skin notation	Y
Notes: The OSHA PEL applies to Construction and Maritime Industries only. See 29 CFR 1926.55 Table 1 and 29 CFR 1915.1000 Table Z-Shipyards		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: TLV-A4, EPA-C		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Cyclotrimethylene trinitramine, [desensitized]

NIOSH: Pocket Guide to Chemical Hazards - Cyclonite

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Cyclonite. See annual publication for most recent information.
U.S. EPA Integrated Risk Information System: Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) (CASRN 121-82-4).
Goldberg, D.J., Green, S.T., Nathwani, D., McMenamin, J., Hamlet, N. and Kennedy, D.H.: RDX intoxication causing seizures and a widespread petechial rash mimicking meningococcaemia. J. R. Soc. Med. 85(3): 181, 1992.
Küçükardali, Y., et al.: Accidental oral poisoning caused by RDX (cyclonite): a report of 5 cases. J. Intensive Care Med. 18(1): 42-46, 2003.
Pohanish, R.P. (editor): Cyclonite. Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 731-732.

Last Updated Date : 06/06/2022

SODIUM TETRABORATE PENTAHYDRATE

Chemical Identification
CAS #	12179-04-3
Formula	Na₂B₄O₇ = ₅H₂O
Synonyms	borax pentahydrate; sodium borate pentahydrate; sodium tetraborate pentahydrate

Physical Properties
Physical description	Colorless or white, odorless crystals or free-flowing powder.
Boiling point		Molecular weight	291.4
Freezing point/melting point	392°F	Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity	1.82	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	0376
Sampling group
Sampler/Sampling media	Mixed cellulose ester filter (MCEF) 0.8 micron (37 mm) and filter spacer with Na₂CO₃ impregnated backup pad, in a 3-piece cassette [SKC 225-9001]
Sampling time^*	240-480 min
Sampling volume (TWA)^*	480-960 L
Sampling flow rate (TWA)^*	2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	AAS/AES
Method reference	OSHA ID-121 (fully validated)
Notes	Results will be reported from the elemental analysis for the element only; the stated identity of the actual sample contents is based on the assumption that the material sampled is as identified by the compliance officer using available documentation of materials and processes. An elemental result provided may be converted to the desired compound by multiplying the result by the appropriate stoichiometric factor. A 91B report specific to the compound (including the stoichiometric conversion) may by be provided upon request by contacting the laboratory. The stoichiometric factor for sodium tetraborate, pentahydrate from sodium is 6.335.
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA	1 mg/m³	TLV-TWA	2 mg/m³ (inhalable particulate matter) [2004]	PEL-TWA	5 mg/m³
PEL-STEL		REL-STEL		TLV-STEL	6 mg/m³ (inhalable particulate matter) [2004]	PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	N	Skin notation	N
Notes: Not established		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Borates, tetra, sodium salts (pentahydrate)

NIOSH: Pocket Guide to Chemical Hazards - Borates, tetra, sodium salts (pentahydrate)

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Borate compounds, inorganic. See annual publication for most recent information.

Last Updated Date : 01/12/2021

MALATHION†

Chemical Identification
CAS #	121-75-5
Formula	C₁₀H₁₉O₆PS₂
Synonyms	S-[1,2-bis(ethoxycarbonyl) ethyl]O,O-dimethyl-phosphorodithioate; diethyl (dimethoxyphosphinothioylthio) succinate

Physical Properties
Physical description	Deep-brown to yellow liquid with a garlic-like odor.
Boiling point	140°F (decomposes)	Molecular weight	330.4
Freezing point/melting point	37.1°F	Vapor pressure	0.00004 mmHg
Flash point	>325°F (open-cup)	Vapor density
Specific gravity	1.234 at 77°F	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	1616
Sampling group
Sampler/Sampling media	OSHA versatile sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg) with GFF enclosed [SKC 226-30-16]
Sampling time^*	60 min
Sampling volume (TWA)^*	60 L
Sampling flow rate (TWA)^*	1 L/min
Sampling volume (STEL/Peak/C)^*	15 L
Sampling flow rate (STEL/Peak/C)^*	1 L/min
Analytical method instruments	GC-FPD
Method reference	OSHA 62 (fully validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media	Wipe with GFF (37 mm), Type A/E [AP4003705]
Bulk Method	Limit the amount of bulk submitted to 1 g or 1 mL.

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	15 mg/m³ (total dust)	REL-TWA	10 mg/m³	TLV-TWA	1 mg/m³ (inhalable fraction and vapor) [2000]	PEL-TWA	10 mg/m³
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	Y	Skin notation	Y	Skin notation	Y	Skin notation	Y
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes: BEI®		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	250 mg/m³
Carcinogenic classifications: IARC-3, TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Malathion

NIOSH: Pocket Guide to Chemical Hazards - Malathion

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Malathion. See annual publication for most recent information.
Bouchard, M, Gosselin, N.H., Brunet, R.C., Samuel, O., Dumoulin, M.-J. and Carrier, G.: A toxicokinetic model of malathion and its metabolites as a tool to assess human exposure and risk through measurements of urinary biomarkers. Toxicol. Sci. 73(1): 182-194, 2003.
Pohanish, R.P. (editor): Malathion. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 2. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1433-1436.

Last Updated Date : 01/28/2021

ASBESTOS - AMOSITE‡

Chemical Identification
CAS #	12172-73-5
Formula	Hydrated mineral silicates
Synonyms

Physical Properties
Physical description	Gray-green fibrous, odorless solid.
Boiling point	decomposes	Molecular weight	varies
Freezing point/melting point	1112°F (decomposes)	Vapor pressure	0 mmHg (approx)
Flash point		Vapor density
Specific gravity		Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	9020
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
Notes	See ASBESTOS, ALL FORMS
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA	0.1 f/cc	TLV-TWA	0.1 f/cc [1994]	PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	N
Notes: TWA = 0.1 f/cc, STEL = 1 f/cc [30 MINUTES]. See 29 CFR 1910.1001, Asbestos.		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens. See Appendix C, Supplementary Exposure Limits.		Notes: [F] Respirable fibers: length >5µm; aspect ratio ≥3:1, as determined by the membrane filter method at 400-450X magnification (4-mm objective), using phase-contrast illumination.		Notes: See California Code of Regulations, Title 8, Section 5208. Asbestos.
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: EPA-A, IARC-1, NIOSH-Ca, NTP-K, OSHA-Ca, TLV-A1		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Asbestos

NIOSH: Pocket Guide to Chemical Hazards - Asbestos

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Asbestos [1332-21-4], all forms. See annual publication for most recent information.

Last Updated Date : 12/17/2020

N,N-DIMETHYLANILINE†

Chemical Identification
CAS #	121-69-7
Formula	C₈H₁₁N
Synonyms	N,N-dimethylbenzeneamine; N,N-dimethylphenylamine [Note: Also known as dimethylaniline which is a correct synonym for xylidine.]

Physical Properties
Physical description	Pale yellow, oily liquid with an amine-like odor.
Boiling point	378°F	Molecular weight	121.2
Freezing point/melting point	36°F	Vapor pressure	1 mmHg
Flash point	142°F	Vapor density	4.17
Specific gravity	0.96	Ionization potential	7.14 eV
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	3	NFPA fire rating	2
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	0931
Sampling group
Sampler/Sampling media	XAD-7 (80/40 mg sections, 20/60 mesh) coated with 10% phosphoric acid [SKC 226-98]
Sampling time^*	150 min
Sampling volume (TWA)^*	30 L
Sampling flow rate (TWA)^*	0.2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID
Method reference	OSHA PV2064 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device	Detector tube	Infrared spectrophotometer
Model/Type	Gastec 181	Miran 1A & 1B
Sampling information (see manufacturer instructions)	2.5-45 ppm range	0.7 ppm@8.6 µm

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	5 ppm (25 mg/m³)	REL-TWA	5 ppm (25 mg/m³)	TLV-TWA	5 ppm [1990]	PEL-TWA	5 ppm (25 mg/m³)
PEL-STEL		REL-STEL	10 ppm (50 mg/m³)	TLV-STEL	10 ppm [1990]	PEL-STEL	10 ppm (50 mg/m³)
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	Y	Skin notation	Y	Skin notation	Y	Skin notation	Y
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes: BEI®		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	100 ppm
Carcinogenic classifications: IARC-3, TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - N,N-Dimethylaniline

NIOSH: Pocket Guide to Chemical Hazards - N,N-Dimethylaniline

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Dimethylaniline. See annual publication for most recent information.
Occupational Health Guidelines for Chemical Hazards. US Department of Health and Human Services (DHHS), National Institute for Occupational Safety and Health (NIOSH) Publication No. 81-123, (1981, January). Provides a table of contents of guidelines for many hazardous chemicals. The files provide technical chemical information, including chemical and physical properties, health effects, exposure limits, and recommendations for medical monitoring, personal protective equipment (PPE), and control procedures.

Last Updated Date : 01/05/2021

TRIMETHYL PHOSPHITE

Chemical Identification
CAS #	121-45-9
Formula	C₃H₉O₃P
Synonyms	methyl phosphite; trimethoxyphosphine; trimethyl ester of phosphorous acid

Physical Properties
Physical description	Colorless liquid with a distinctive, pungent odor.
Boiling point	232°F	Molecular weight	124.1
Freezing point/melting point	-108°F	Vapor pressure	24 mmHg
Flash point	82°F	Vapor density
Specific gravity	1.046	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	1	NFPA fire rating	3
NFPA reactivity rating	1	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA	2 ppm (10 mg/m³)	TLV-TWA	2 ppm [1980]	PEL-TWA	2 ppm (10 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	N	Skin notation	N
Notes: Not established		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Trimethyl phosphite

NIOSH: Pocket Guide to Chemical Hazards - Trimethyl phosphite

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Trimethyl phosphite. See annual publication for most recent information.

Last Updated Date : 01/14/2021

TRIETHYLAMINE†

Chemical Identification
CAS #	121-44-8
Formula	C₆H₁₅N
Synonyms	diethylaminoethane; N,N-diethylaminoethane; TEA

Physical Properties
Physical description	Colorless liquid with a strong, ammonia-like odor.
Boiling point	193°F	Molecular weight	101.22
Freezing point/melting point	-175°F	Vapor pressure	54 mmHg
Flash point	20°F	Vapor density	3.48
Specific gravity	0.73	Ionization potential	7.50 eV
Lower explosive limit (LEL)	1.2%	Upper explosive limit (UEL)	8%
NFPA health rating	3	NFPA fire rating	3
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	2480
Sampling group
Sampler/Sampling media	XAD-7 tube (80/40 mg) coated with phosphoric acid [SKC 226-98]
Sampling time^*	100 min
Sampling volume (TWA)^*	10 L
Sampling flow rate (TWA)^*	0.1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID
Method reference	OSHA PV2060 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	25 ppm (100 mg/m³)	REL-TWA		TLV-TWA	0.5 ppm [2014]	PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL	1 ppm [2014]	PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C	1 ppm (4.1 mg/m³)
Skin notation	N	Skin notation	N	Skin notation	Y	Skin notation	Y
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes: See Appendix D - Substances with No Established RELs.		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	200 ppm
Carcinogenic classifications: TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Triethylamine

NIOSH: Pocket Guide to Chemical Hazards - Triethylamine

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Triethylamine. See annual publication for most recent information.
Åkesson, B., Skerfving, S. and Mattiasson, L.: Experimental study on the metabolism of triethylamine in man. Br. J. Ind. Med.. 45(4): 262-268, 1988.
Åkesson, B., Vinge, E. and Skerfving, S.: Pharmacokinetics of triethylamine and triethylamine-n-oxide in man. Toxicol. Appl. Pharmacol. 100(3): 529-538, 1989.
Ballantyne, B.: Glaucopsia: an occupational ophthalmic hazard. Toxicol. Rev. 23(2): 83-90, 2004.
Järvinen, P.: Headache and blood pressure among triethylamine-exposed foundry workers. Occup. Med. (Lond.) 48(2): 113-117, 1998.
Järvinen, P., Engström, K., Riihimäki, V., Ruusuvaara, P. and Setälä, K.: Effects of experimental exposure to triethylamine on vision and the eyes. Occup. Environ. Med. 56(1): 1-5, 1999.
Pohanish, R.P. (editor): Triethylamine. In, Sittig’s Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 2. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 2267-2269.

Last Updated Date : 07/13/2021

AMMONIUM CHLORIDE FUME

Chemical Identification
CAS #	12125-02-9
Formula	ClH₄N
Synonyms	ammonium chloride; ammonium muriate fume; sal ammoniac fume

Physical Properties
Physical description	Finely divided, odorless, white particulate dispersed in air.
Boiling point	sublimes	Molecular weight	53.5
Freezing point/melting point	662°F (sublimes)	Vapor pressure	1 mmHg at 321°F
Flash point		Vapor density
Specific gravity	1.53	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	2	NFPA fire rating	0
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	0175
Sampling group
Sampler/Sampling media	Pre-assembled cassette with mixed cellulose ester filter (MCEF) 0.8 micron (37 mm) [MAWP037A0]
Sampling time^*	240 min
Sampling volume (TWA)^*	480 L
Sampling flow rate (TWA)^*	2 L/min
Sampling volume (STEL/Peak/C)^*	30 L
Sampling flow rate (STEL/Peak/C)^*	0.5 L/min
Analytical method instruments	IC
Method reference	OSHA ID-188 (fully validated)
Notes	Known interferences with the ammonium ion by IC with the current conditions: Methyl- and dimethylamine, mono- and diethanolamine, iso- and propanolamine
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA	10 mg/m³	TLV-TWA	10 mg/m³ [1970]	PEL-TWA	10 mg/m³
PEL-STEL		REL-STEL	20 mg/m³	TLV-STEL	20 mg/m³ [1970]	PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	N	Skin notation	N
Notes: Not established		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Ammonium chloride

NIOSH: Pocket Guide to Chemical Hazards - Ammonium chloride fume

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Ammonium chloride, fume. See annual publication for most recent information.

Last Updated Date : 10/10/2024

2,4-DINITROTOLUENE

Chemical Identification
CAS #	121-14-2
Formula	C₇H₆N₂O₄
Synonyms	dinitrotoluol; DNT; methyldinitrobenzene [Note: Various isomers of DNT exist]

Physical Properties
Physical description	Orange-yellow crystalline solid with a characteristic odor.
Boiling point	572°F	Molecular weight	182.2
Freezing point/melting point	158°F	Vapor pressure	1 mmHg
Flash point	404°F	Vapor density	6.27
Specific gravity	1.379	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	3	NFPA fire rating	1
NFPA reactivity rating	3	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	0990
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
Notes	See DINITROTOLUENE
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Dinitrotoluenes, molten

NIOSH: Pocket Guide to Chemical Hazards - Dinitrotoluenes, molten

Literature References

DIPHENYLAMINE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

CYCLONITE (RDX)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

SODIUM TETRABORATE PENTAHYDRATE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

MALATHION†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ASBESTOS - AMOSITE‡

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

N,N-DIMETHYLANILINE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

TRIMETHYL PHOSPHITE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

TRIETHYLAMINE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

AMMONIUM CHLORIDE FUME

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

2,4-DINITROTOLUENE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References