DIISOPROPYLAMINE†

Chemical Identification
Chemical Identification
CAS # 108-18-9
Formula

C₆H₁₅N

Synonyms

DIPA; N-(1-methylethyl)-2-propanamine

Physical Properties
Physical Properties
Physical description Colorless liquid with an ammonia- or fish-like odor.
Boiling point 183°F Molecular weight 101.2
Freezing point/melting point -78°F Vapor pressure 70 mmHg
Flash point 20°F Vapor density 3.5
Specific gravity 0.72 Ionization potential 7.73 eV
Lower explosive limit (LEL) 1.1% Upper explosive limit (UEL) 7.1%
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
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 0925
Sampling group
Sampler/Sampling media Midget fritted glass bubbler (MFGB) containing 10 mL Sulfuric Acid (0.1 M) [Infrequently Requested Method - OSHA staff please contact SLTC before sampling 801-233-4900]
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 GC-FID
Method reference NIOSH S141 (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.

Wipe Method
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
On-Site Screening Techniques
Device Infrared spectrophotometer
Model/Type Miran 1A & 1B
Sampling information
(see manufacturer instructions)
0.4 ppm@8.5 µm
Exposure Limits
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 (20 mg/m³)

REL-TWA

5 ppm (20 mg/m³)

TLV-TWA

5 ppm [1979]

PEL-TWA

5 ppm (20 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: Notes:
Health factors:  See NIH-NLM PubChem. IDLH

200 ppm

Carcinogenic classifications: Not listed Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Diisopropylamine

NIOSH: Pocket Guide to Chemical Hazards - Diisopropylamine

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Diisopropylamine. 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 : 12/28/2020