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Chemical Sampling Information (CSI)
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General Description

Synonyms: TNM

OSHA IMIS Code Number: 2395

Chemical Abstracts Service (CAS) Registry Number: 509-14-8

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: PB4025000; 48121

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 1510 143; UN1510 Oxidizer; Poison

NIOSH Pocket Guide to Chemical Hazards, Tetranitromethane: chemical description, physical properties, potentially hazardous incompatibilities, and more

Chemical Description and Physical Properties:
colorless to pale yellow liquid or solid with a pungent odor; causes tears
molecular weight: 196
boiling point: 259°F
vapor pressure: 8.4 mm
melting point: 57°F
Incompatibilities Hydrocarbons, alkalies, metals

Exposure Limits

OSHA Permissible Exposure Limit (PEL):
General Industry: 1 ppm, 8 mg/m3

Construction Industry: 1 ppm, 8 mg/m3 TWA
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.005 ppm, 0.04 mg/m3 TWA; Appendix A3 (Confirmed Animal Carcinogen with Unknown Relevance to Humans)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 1 ppm TWA


Health Factors

Potential Symptoms: Eye, nose, throat irritation; dizziness; headaches; chest pain, dyspnea; methemoglobinuria; cyanosis; skin burns

Health Effects: Irritation-Eye, Nose, Throat, Skin---Marked (HE14) Acute CNS and lung effects (HE4); Cumulative systemic damage (HE3) Methemoglobinemia (HE13)

Affected Organs: Respiratory system, eyes, skin, blood, CNS

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • sampling media: Midget Impinger containing 15 mL Ethyl Acetate
    maximum volume: 250 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: Gas Chromatography; GC/NPD
    method reference: 1 (NIOSH S-224)
    sampling and analytical error: 0.13
    method classification: Fully Validated
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Page last updated: 01/15/1999