Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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2,2-Dichloropropionic acid(75-99-0)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
2,2-Dichloropropionic acid
Synonyms
(Chlorothio)formyl chloride
2,2-Dichloropropanoic acid
Dalapon
Kenapon
Liropon
Proprop
S-Chloro chloromethanethioate
CAS
2757-23-5
CAS
75-99-0
Formula
C3H4Cl2O2
Formula
CCl2OS
Molecular Weight
130.97999999999999
Molecular Weight
142.97
EINECS
200-923-0
EINECS
220-415-2
RTECS
UF0690000
RTECS Class
Agricultural Chemical and Pesticide; Mutagen
Merck
13,2830
Beilstein/Gmelin
1750149
Beilstein/Gmelin
100872 (G)
Beilstein Reference
4-02-00-00753
EC Index Number
607-162-00-7
EC Class
Harmful; Irritant; Dangerous for the Environment

Physical and Chemical Properties

Appearance
A colorless liquid.
Solubility in water
Slightly soluble
Melting Point
7.8
Melting Point
98
Boiling Point
202
Vapor Pressure
5
Density
1.361 g/cm3 (20 C)
Density
1.569 g/cm3 (22 C)
pKa/pKb
1.53 (pKa)
Partition Coefficient
.778
Usage
Herbicide.
Vapor Density
1.4014
Odor threshold
2,500 mg/m3
Refractive Index
1.4532 (20 C)
Refractive Index
1.52 (20 C)

First Aid Measures

Ingestion
Seek medical assistance.
Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
Skin
Remove contaminated clothing. Wash skin and hair thoroughly; do two soap and water washings. Leather absorbs pesticides. Hence, leather should not be worn in the presence of pesticides and all contaminated leather should be discarded.
Skin
Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.
Eyes
Immediately flush with running water for at least 20 minutes.
Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.
Eyes
See Inhalation.

Handling and Storage

Storage
Keep in well ventilated area.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Ingestion
See Inhalation.
Inhalation
Aspiration of insecticide containing petroleum distillate may result in pneumonitis.
Skin
Extensive contact results in dermal irritation.
Eyes
See Inhalation.
Ingestion
Nausea, vomiting, and diarrhea may follow ingestion.
Hazards
Irritating fumes of hydrochloric acid may form in fire. Volatilizes with steam.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
EC Risk Phrase
R 22 38 41 52/53
EC Risk Phrase
R 34 36/37
EC Safety Phrase
S 26 36/37/39 45
EC Safety Phrase
S 26 39 61
UN (DOT)
1760
UN (DOT)
3265

Exposure Controls/Personal Protection

Personal Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Exposure Effects
CNS excitation, seizures, tremor, ataxia, agitation, nervousness, and amnesia may occur. Kelthane, perthane, methoxychlor, and hexachlorobenzene have little CNS toxicity; in extreme overdose CNS depression may occur. Organochlorine pesticides such as DDT pass through the placenta, with an average level in the newborn blood reaching around a third of that in maternal blood. They can also be found in breast milk. Excessive absorption of kepone (chlordecone) has depressed sperm counts and sperm motility in exposed workers.
Exposure limit(s)
NIOSH REL: TWA 1 ppm (6 mg/m3)

Fire Fighting Measures

Flash Point
>110
Fire Fighting
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use water spray to knock-down vapors.
Fire Fighting
Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Dry chemical, carbon dioxide, alcohol-resistant foam or water spray.
Fire Potential
This material is combustible.
Fire Potential
Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks
ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Use water spray to knock-down vapors. Neutralize spilled material with crushed limestone, soda ash, or lime. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Dike surface flow using soil, sand bags, foamed polyurethane, or foamed concrete. Absorb bulk liquid with fly ash, cement powder, or commercial sorbents. Water spill: Use natural deep water pockets, excavated lagoons, or sand bag barriers to trap material at bottom. If dissolved, in region of 10 ppm or greater concentration, apply activated carbon at ten times the spilled amount. Remove trapped material with suction hoses. Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.

Stability and Reactivity

Incompatibilities
Reacts in this way with all bases, both organic (for example, the amines) and inorganic Can react with active metals to form gaseous hydrogen and a metal salt Flammable and/or toxic gases and heat are generated by the reaction with with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides.
Stability
Stable in dry form.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
1760
UN Number
3265
Hazard Class
8
Packing Group
I; II; III
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