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Chemical Sampling Information (CSI)
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General Description

Synonyms: Chlorcyan; Chlorine Cyanide; Chlorocyanogen

OSHA IMIS Code Number: C146

Chemical Abstracts Service (CAS) Registry Number: 506-77-4

NIOSH Registry of Toxic Effects (RTECS) Identification Number: GT2275000; 27681

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN1589; 125 Poison Gas, Flammable Gas

Chemical Description and Physical Properites:

    molecular formula: CClN
    molecular weight: 61.48
    boiling point: 13.8°C
Health Factors

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.3 ppm; 0.75 mg/m3 Ceiling

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.3 ppm Ceiling

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Coated XAD-2 Tube (150/75 mg sections, 20/60 mesh); Coating is 10% (W/W) 2-(Hydroxymethyl)piperidine.
    analytical solvent: Toluene
    maximum flow rate: 0.2 L/min (Ceiling)
    minimum time: 5 Minutes
    current analytical method: Gas Chromatography; GC/NPD
    method reference: 2 (OSHA In-House File)
    method classification: Partially Validated

Articles: Brown, P.N.; Jayson, G.C.; Wilkinson, M.C. "Chromatographia" 1986, 21(3), 161. ...Title: Determination of Cyanogen and Cyanogen Chloride Using Gas Chromatography with a Flame Ionization Detector. ...Location: In-house (Organic Methods File) ...Conditions: COLUMN: 5 ft x 1/8 inch ss Porapak QS. TEMP: Injector -110 C, Oven -90 C, Detector -200 C, ...Injection through gas sampling valve.

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