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MONOMETHYL ANILINE (N-METHYLANILINE)†
| CAS # | 100-61-8 |
|---|---|
| Formula |
C₇H₉N |
| Synonyms |
MA; (methylamino)benzene; N-methyl aniline; methylphenylamine; N-phenylmethylamine |
| Physical description | Yellow to light-brown liquid with a weak, ammonia-like odor. | ||
|---|---|---|---|
| Boiling point | 385.3°F | Molecular weight | 107.16 |
| Freezing point/melting point | -71°F | Vapor pressure | 1 mmHg at 106°F |
| Flash point | 175°F | Vapor density | 3.9 |
| Specific gravity | 0.989 | Ionization potential | 7.32 eV |
| 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 | |||
| Analyte code (IMIS no.) | 1972 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | Midget fritted glass bubbler (MFGB) containing 10 mL Sulfuric Acid (0.05 M) [Infrequently Requested Method - OSHA staff please contact SLTC before sampling 801-233-5100] |
| Sampling time* | |
| Sampling volume (TWA)* | 11-100 L |
| Sampling flow rate (TWA)* | 0.2-1 L/min |
| Sampling volume (STEL/Peak/C)* | |
| Sampling flow rate (STEL/Peak/C)* | |
| Analytical method instruments | GC-FID |
| Method reference | NIOSH 3511 (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.
| Wipe Sampler/Sampling media | |
|---|---|
| Bulk Method |
| Device | Detector tube | Infrared spectrophotometer |
|---|---|---|
| Model/Type | Gastec 181 | Miran 1A & 1B |
|
Sampling information (see manufacturer instructions) |
2.5-45 ppm | 1.9 ppm@9.4 µm |
|
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 |
2 ppm (9 mg/m³) |
REL-TWA |
0.5 ppm (2 mg/m³) |
TLV-TWA |
0.5 ppm [1992] |
PEL-TWA |
0.5 ppm (2 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: | Notes: |
Notes:
BEI® |
Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH |
100 ppm |
|||||
| Carcinogenic classifications: Not listed | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - N-Methylaniline NIOSH: Pocket Guide to Chemical Hazards - Monomethyl aniline Literature References
|
Last Updated Date : 01/22/2024