NITROMETHANE†
CAS # | 75-52-5 |
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Formula |
CH₃NO₂ |
Synonyms |
nitrocarbol |
Physical description | Colorless, oily liquid with a disagreeable odor. | ||
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Boiling point | 214°F | Molecular weight | 61.04 |
Freezing point/melting point | -20°F | Vapor pressure | 28 mmHg |
Flash point | 95°F | Vapor density | 2.11 |
Specific gravity | 1.139 | Ionization potential | 11.08 eV |
Lower explosive limit (LEL) | 7.3% | Upper explosive limit (UEL) | |
NFPA health rating | 2 | NFPA fire rating | 3 |
NFPA reactivity rating | 4 | NFPA special instruction | |
Vapor hazard ratio (VHR) | |||
Historical exceedance percentage | |||
Target organs |
Analyte code (IMIS no.) | 1920 | ||
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Sampling group | |||
Sampler/Sampling media | Chromosorb® 106 (600/300 mg) [SKC 226-111A] | ||
Sampling time* |
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Sampling volume (TWA)* | 1.2-3 L |
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Sampling flow rate (TWA)* | 0.05 L/min |
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Sampling volume (STEL/Peak/C)* |
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Sampling flow rate (STEL/Peak/C)* |
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Analytical method instruments | GC | ||
Method reference | NIOSH 2527 (fully validated) | ||
Notes | Separate front and back sorbent sections |
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Special requirements |
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* 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 |
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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 |
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PEL-TWA |
100 ppm (250 mg/m³) |
REL-TWA |
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TLV-TWA |
20 ppm [1997] |
PEL-TWA |
2 ppm (5 mg/m³) |
PEL-STEL |
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REL-STEL |
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TLV-STEL |
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PEL-STEL |
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PEL-C |
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REL-C |
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TLV-C |
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PEL-C |
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Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Notes: | Notes: |
Notes:
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Notes:
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Health factors: See NIH-NLM PubChem. | IDLH |
750 ppm |
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Carcinogenic classifications: TLV-A3, IARC-2B, NTP-R |
Notes:
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AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
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Additional Resources and Literature References
NOAA: CAMEO Chemicals - Nitromethane NIOSH: Pocket Guide to Chemical Hazards - Nitromethane Literature References
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Last Updated Date : 01/13/2023