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Chemical Sampling Information (CSI)
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General Description

Synonyms: Nitrotrichloromethane; Trichloronitromethane; Nitrochloroform

OSHA IMIS Code Number: 0675

Chemical Abstracts Service (CAS) Registry Number: 76-06-2

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: PB6300000; 48193

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN1580 Poison 154

Chemical Description and Physical Properties:

Colorless, oily liquid with a sharp, penetrating odor that causes tears.
molecular weight: 164
vapor pressure: 20 mm
boiling point: 234°F
melting point: -83°F

Incompatibilities: Strong oxidizers

Exposure Limits

OSHA Permissible Exposure Limit (PEL):

General Industry: 0.1 ppm, 0.7 mg/m3
Construction Industry: 0.1 ppm, 0.7 mg/m3 TWA

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.1 ppm, 0.67 mg/m3 TWA; Appendix A4 (Not Classifiable as a Human Carcingen)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.1 ppm TWA

Health Factors

Potential Symptoms: Eye irritation, lacrimation; coughing, pulmonary edema; nausea, vomiting; skin irritation

Health Effects: Irritation-Eye, Nose, Throat, Skin---Marked (HE14) Acute lung damage/edema (HE11)

Affected Organs: Respiratory system, skin, eyes

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • sampling media: Two XAD-4 Tubes in Series (80/40 mg sections)
    analytical solvent: Ethyl Acetate
    maximum volume: 5 Liters
    maximum flow rate: 0.2 L/min
    current analytical method: Gas Chromatography; GC/ECDREF 2 (OSHA In-House File)
    method classification: Partially Validated

Conditions: Column: 60m RTX-5 1u film 0.32 mm ID Temp(deg C): Injector-140; Oven-100; Detector-300

Secondry Sampling/Analytical Method (SAM2):

  • device: Detector Tube
    company: Gastec
    part #: 134
    range: 1-60 ppm
    class: Mfg

  • device: Instrumentation
    company: Infrared Spectrophotometer
    part #: MIRAN 1A & 1B
    range: 0.1 ppm @ 11.5 um
    class: Mfg

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