DIPHENYLAMINE†
| CAS # | 122-39-4 |
|---|---|
| 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 | ||
|---|---|---|---|
| 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 | |
|---|---|
| Bulk Method |
| Device | |||||
|---|---|---|---|---|---|
| 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
|
Last Updated Date : 06/23/2023