2,2-DICHLOROPROPIONIC ACID

Chemical Identification
Chemical Identification
CAS # 75-99-0
Formula

C₃H₄Cl₂O₂

Synonyms

2-dichloropropionic acid; Basfapon; Basafapon B; Basfapon/N; BH dalapon; Basinex; Crisapon; Davpon; Gramevin; Kenapon; Uropon; Dalapon; Ded-weed; Dowpon Proprop; Radapon; Revenge; Unipon

Physical Properties
Physical Properties
Physical description Colorless liquid with an acrid odor.
Boiling point 374°F Molecular weight 143.0
Freezing point/melting point 46°F Vapor pressure 5.07 mmHg at 160°F
Flash point Vapor density 4.9
Specific gravity 1.40 Ionization potential
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.) D176
Sampling group
Sampler/Sampling media Silica gel tube (150/75 mg) [SKC 226-10]
Sampling time*
Sampling volume (TWA)*

10 L

Sampling flow rate (TWA)*

0.2 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments HPLC-UV
Method reference OSHA PV2017 (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
 

1 ppm (6 mg/m³)

TLV-TWA
 

5 mg/m³ (inhalable particulate matter) [1997]

PEL-TWA
 

1 ppm (6 mg/m³)

PEL-STEL
 

 

REL-STEL
 

 

TLV-STEL
 

 

PEL-STEL
 

 

PEL-C
 

 

REL-C
 

 

TLV-C
 

 

PEL-C
 

 

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: 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 - 2,2-Dichloropropionic acid

NIOSH: Pocket Guide to Chemical Hazards - 2,2-Dichloropropionic acid

Literature References

 
  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - 2,2-Dichloropropionic acid. See annual publication for most recent information.

Last Updated Date : 12/15/2020