BENZOYL CHLORIDE

Chemical Identification
Chemical Identification
CAS # 98-88-4
Formula

C₇H₅ClO

Synonyms

benzenecarbonyl chloride; α-chlorobenzaldehyde; benzoic acid chloride

Physical Properties
Physical Properties
Physical description A colorless fuming liquid with a pungent odor.
Boiling point 387°F Molecular weight 140.57
Freezing point/melting point 30.2°F Vapor pressure 0.4 mmHg
Flash point 162°F Vapor density 4.88
Specific gravity 1.211 Ionization potential
Lower explosive limit (LEL) 1.2% Upper explosive limit (UEL) 4.9%
NFPA health rating 3 NFPA fire rating 2
NFPA reactivity rating 2 NFPA special instruction W: Reacts violently or explosively with water
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time*
Sampling volume (TWA)*
Sampling flow rate (TWA)*
Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments
Method reference
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 TLV-C

0.5 ppm [1992]

PEL-C

0.2 ppm (1.1 mg/m³)

Skin notation

NA

Skin notation

NA

Skin notation

N

Skin notation

N

Notes:

Not established

Notes:

Not established

Notes: Notes:
Health factors:  See NIH-NLM PubChem. IDLH

10 mg/m³

Carcinogenic classifications: IARC-2A, TLV-A4 Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

0.3 ppm/5 ppm/20 ppm

Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Benzoyl chloride

NIOSH: Pocket Guide to Chemical Hazards - Benzoyl chloride

Literature References

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

Last Updated Date : 12/17/2020