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DIPHENYLAMINE†
CAS # | 122-39-4 |
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Formula |
C₁₂H₁₁N |
Synonyms |
anilinobenzene; DPA; phenylaniline; N-phenylaniline; N-phenylbenzenamine |
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 |
Analyte code (IMIS no.) | 0926 |
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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.
Wipe Sampler/Sampling media | |
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Bulk Method |
Device | |||||
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Model/Type | |||||
Sampling information (see manufacturer instructions) |
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 |
|||||
---|---|---|---|---|---|---|---|
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
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Last Updated Date : 06/23/2023