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2,2-Dichloropropionic acid

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Synonyms & Trade Names
Dalapon, 2,2-Dichloropropanoic acid, α,α-Dichloropropionic acid
CAS No.
75-99-0
RTECS No.
UF0690000
DOT ID & Guide
Formula
CH₃CCl₂COOH
Conversion
1 ppm = 5.85 mg/m3
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 1 ppm (6 mg/m3)
OSHA PEL
none See Appendix G
Measurement Methods
OSHA PV2017
See: NMAM or OSHA Methods
Physical Description
Colorless liquid with an acrid odor. [herbicide] [Note: A white to tan powder below 46°F. The sodium salt, a white powder, is often used.]
Molecular Weight
143.0
Boiling Point
374°F
Freezing Point
46°F
Solubility
50%
Vapor Pressure
?
Ionization Potential
?
Specific Gravity
1.40
Flash Point
NA
Upper Explosive Limit
NA
Lower Explosive Limit
NA
Noncombustible Liquid
Incompatibilities & Reactivities
Metals [Note: Very corrosive to aluminum & copper alloys. Reacts slowly in water to form hydrochloric & pyruvic acids.]
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, upper respiratory system; skin burns; lassitude (weakness, exhaustion), loss of appetite, diarrhea, vomiting, slowing of pulse; central nervous system depression
Target Organs
Eyes, skin, respiratory system, gastrointestinal tract, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:No recommendation
Provide:Eyewash, Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Water wash immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 1509
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health