MONOCHLOROACETIC ACID

Chemical Identification
Chemical Identification
CAS # 79-11-8
Formula

C₂ClH₃O₂

Synonyms

Chloroacetic acid

Physical Properties
Physical Properties
Physical description Colorless solution of the white crystalline solid.
Boiling point Molecular weight 94.5
Freezing point/melting point Vapor pressure
Flash point 259°F Vapor density
Specific gravity 1.328 Ionization potential
Lower explosive limit (LEL) 8% 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.) M145
Sampling group
Sampler/Sampling media Silica gel tube (100/50 mg) [SKC 226-47-01]
Sampling time*
Sampling volume (TWA)*

1-100 L

Sampling flow rate (TWA)*

0.05-0.2 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments IC
Method reference NIOSH 2008 (fully 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
 

0.5 ppm (inhalable fraction and vapor) [2005]

PEL-TWA
 

 

PEL-STEL
 

 

REL-STEL
 

 

TLV-STEL
 

 

PEL-STEL
 

 

PEL-C
 

 

REL-C
 

 

TLV-C
 

 

PEL-C
 

 

Skin notation
 

NA

Skin notation
 

NA

Skin notation
 

Y

Skin notation
 

NA

Notes:
 

Not established

Notes:
 

Not established

Notes:
 

 

Notes:
 

Not established

Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: TLV-A4 Notes:
 

 

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
 

 

Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Chloroacetic acid, solution

NIOSH: Pocket Guide to Chemical Hazards - Chloroacetic acid, solution

Literature References

 

 

Last Updated Date : 01/05/2021