2,2-DICHLOROPROPIONIC ACID SODIUM SALT Chemical Properties

Melting point:

166.5°C

storage temp. 

Store below +30°C.

solubility 

450g/l

form 

powder to crystal

color 

White to Orange to Green

PH

5.5 (100g/l, H2O, 20℃)

CAS DataBase Reference

127-20-8(CAS DataBase Reference)

EPA Substance Registry System

Dalapon-sodium (127-20-8)

Safety Information

Hazard Codes 

Xi

Risk Statements 

20/21/22-34-36/37/38

Safety Statements 

26-27-28-36/37/39-36

RIDADR 

UN 3261 8/PG 2

WGK Germany 

WGK 1 slightly water endangering

RTECS 

UF1225000

TSCA 

Yes

HS Code 

2915 90 70

HazardClass 

8

PackingGroup 

III

Toxicity

LD50 orally in Rabbit: 3860 mg/kg LD50 dermal Rabbit > 2000 mg/kg

MSDS

• Language:English Provider:ALFA

2,2-DICHLOROPROPIONIC ACID SODIUM SALT Usage And Synthesis

Uses

2,2-Dichloropropionic acid sodium salt is a selective, systemic herbicide used to control perennial and annual grasses on noncrop land, fruits, vegetables and some aquatic weeds.

Safety Profile

Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits toxic fumes of Na2O and Cl-.

Environmental Fate

Soil. Undergoes dechlorination and the liberation of carbon dioxide in soil. The residual activity is limited to approximately 3–4 months (Hartley and Kidd, 1987). The average half-life for dalapon-sodium in soil incubated in the laboratory under aerobic conditions was 15 days (Namdeo, 1972)
Photolytic. Dalapon (free acid) is subject to photodegradation. When an aqueous solution (0.25 M) was irradiated with UV light at 253.7 nm at 49°C, 70% degraded in 7 hours. Pyruvic acid is formed which is subsequently decarboxylated to acetaldehy
Chemical/Physical. Slowly reacts with moisture at room temperature forming pyruvic acid (Frank and Demint, 1969; Kenaga, 1974), hydrochloric acid and sodium chloride (Kenaga, 1974; Wolfe et al., 1990). The reported hydrolysis half-life of dalapon
Products reported from the combustion of the free acid (dalapon) at 900°C include carbon monoxide, carbon dioxide, chlorine and hydrochloric acid (Kennedy et al., 1972a)

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