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Chemical Sampling Information (CSI)
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General Description

Synonyms: CMME; Chloro Methyl Methyl Ether; Methyl Chloromethyl Ether prior to 9/1/89

OSHA IMIS Code Number: 2640

Chemical Abstracts Service (CAS) Registry Number: 107-30-2

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: KN6650000; 34922

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN1239 Poison Flammable Liquid

Chemical Description and Physical Properties:

    Clear, colorless liquid.

Incompatibilities: Water, unstable

Exposure Limits

OSHA Permissible Exposure Limit (PEL):

General Industry: Cancer-Suspect Agent 29 CFR 1910.1006

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV) : Appendix A2 (Suspected Human Carcinogen)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): Potential Carcinogen; 29 CFR 1910.1006

Health Factors

Carcinogenic Classification:

    International Agency for Research on Cancer (IARC): Group 1, carcinogenic to humans (Technical-Grade)

    National Toxicology Program (NTP): Human Carcinogen

Potential Symptoms: Eye, skin, mucous membrane irritation; pulmonary edema, pulmonary congestion, pneumonia; burns, necrosis; coughing, wheezing; blood stained sputum; weight loss; bronchial secretions; (carcinogenic)

Health Effects: Cancer-Lung (HE1)

Affected Organs: Respiratory system, skin, eyes, mucous membranes

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • media sampling: Two Midget Impingers in series, each containing 10 mL derivatizing reagent
    maximum volume: 50 Liters
    maximum flow rate: 0.5 L/min
    current analytical method: Gas Chromatography; GC/ECD
    method reference: 2 (OSHA 10)
    method classification: Fully Validated
    note: Derivatizing reagent: 16 grams of 2,4,6-Trichlorophenol and 4.4 grams of Sodium methoxide dissolved in 1 Liter of Methanol. OSHA personnel may obtain sampling solution from SLTC.

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