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Chemical Sampling Information (CSI)
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General Description

Synonyms: Chlorocetic Acid Chloride; Chloroacetic Chloride; Monochloroacetyl Chloride

OSHA IMIS Code Number: C145

Chemical Abstracts Service (CAS) Registry Number: 79-04-9

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: A06475000; 3708

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN1752 Corrosive Material

Chemical Description and Physical Properties:

molecular weight: 112.94
molecular formula: C2H2C120
Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.05 ppm, 0.23 mg/m3 TWA; 0.15 ppm, 0.69 mg/m3 STEL; Skin

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.05 ppm TWA

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method:

  • media: Coated XAD-7 Tube. Coating is 1-(2-pyridyl)piperazine
    analytical solvent: Acetonitrile
    maximum volume: 10 Liters
    maximum flow rate: 0.05 L/min
    current analytical method: High Performance Liquid Chromatography; HPLC/UL51.
    method reference: 2 (OSHA In-House File)
    method classification: Not Validated

Article: Langhorst, Marcha L."Am. Ind. Hyg. Assoc. J." 1985, 46(5) 236-243

Conditions: Column: CN Mobile Phase: 20:80 Acetonitrile:Water 0.02M Ammonium . Acetate Detector Wavelength: 254nm or 240 EX: 370 EM (Fluor) Detection Limit: 4.8 ug/m3

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