CYANOGEN CHLORIDE

Chemical Identification
Chemical Identification
CAS # 506-77-4
Formula

CNCl

Synonyms

chlorcyan; chlorine cyanide; chlorocyanide; chlorocyanogen; cyanogen chloride inhibited

Physical Properties
Physical Properties
Physical description Colorless gas or liquid (below 55°F) with an irritating odor.
Boiling point 55°F Molecular weight 61.5
Freezing point/melting point 20°F Vapor pressure 1010 mmHg
Flash point Vapor density 2.16
Specific gravity 1.22 (liquid at 32°F) Ionization potential 12.49 eV
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) C146
Sampling group
Sampler/Sampling media XAD-2 tube (450/225 mg) coated with 10% 2-(hydroxymethyl)piperidine [SKC 226-27]
Sampling time*

120 min

Sampling volume (TWA)*

24 L

Sampling flow rate (TWA)*

0.2 L/min

Sampling volume (STEL/Peak/C)*

3 L

Sampling flow rate (STEL/Peak/C)*

0.2 L/min

Analytical method instruments GC-NPD
Method reference OSHA PV2193 (partially validated)
Notes
Special requirements

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Wipe Method
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA REL-TWA TLV-TWA PEL-TWA
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C

0.3 ppm (0.6 mg/m³)

TLV-C

0.3 ppm [2013]

PEL-C

0.3 ppm (0.6 mg/m³)

Skin notation

NA

Skin notation

N

Skin notation

N

Skin notation

N

Notes:

Not established

Notes: Notes: Notes:
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: Not listed Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

--/0.5 ppm/4 ppm

Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Cyanogen chloride, stabilized

NIOSH: Pocket Guide to Chemical Hazards - Cyanogen chloride

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Cyanogen chloride. See annual publication for most recent information.

Last Updated Date : 12/22/2020