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Cyanogen Chloride

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 of Chemical Substances (RTECS) Identification Number: GT2275000; 27681
  • Department of Transportation Regulation Number (49 CFR 172.101) and Emergency Response Guidebook: UN1589; 125 Poison Gas, Flammable Gas
  • Chemical Description and Physical Properties:
    • molecular weight: 61.48
    • molecular formula: CClN
    • 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):
  • 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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