127-20-8 Usage
Description
2,2-Dichloropropionic acid sodium salt is a chemical compound that acts as a selective, systemic herbicide. It is effective in controlling various types of grasses, both perennial and annual, across different settings such as noncrop land, fruits, vegetables, and some aquatic weeds.
Uses
Used in Agriculture:
2,2-Dichloropropionic acid sodium salt is used as a herbicidal agent for controlling grasses in agricultural settings. It targets both perennial and annual grasses, helping to protect crops like fruits and vegetables from being overtaken by unwanted growth.
Used in Noncrop Land Management:
In noncrop land, 2,2-Dichloropropionic acid sodium salt serves as a valuable tool for managing and controlling grasses. This helps maintain the land for various purposes, such as recreational areas, natural habitats, or simply keeping the land clear.
Used in Aquatic Weed Control:
2,2-Dichloropropionic acid sodium salt is also utilized in the control of some aquatic weeds. This application helps maintain the health and balance of aquatic ecosystems by preventing the overgrowth of certain grasses that can disrupt the natural environment.
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 acetaldehyChemical/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 dalaponProducts 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)
Check Digit Verification of cas no
The CAS Registry Mumber 127-20-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,2 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 127-20:
(5*1)+(4*2)+(3*7)+(2*2)+(1*0)=38
38 % 10 = 8
So 127-20-8 is a valid CAS Registry Number.
InChI:InChI=1/C3H4Cl2O2.Na/c1-3(4,5)2(6)7;/h1H3,(H,6,7);/q;+1/p-1
127-20-8Relevant articles and documents
5,6-Dihydro-1,2,4,6-thiatriazin-5-one-1,1-dioxides
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, (2008/06/13)
5,6-Dihydro-1,2,4,6-thiatriazin-5-one-1,1-dioxides of the formula STR1 where R1 is hydrogen, a metal atom or an unsubstituted or substituted ammonium radical, R2 is a saturated or unsaturated straight-chain aliphatic radical of up to 10 carbon atoms, a cycloaliphatic radical or 3 to 7 carbon atoms, a branched saturated or unsaturated aliphatic radical of 3 to 10 carbon atoms, a halogen-, alkoxy- or alkylmercapto-substituted aliphatic radical of 2 to 10 carbon atoms tetrahydrofuryl substituted methyl, a cycloalkoxy-substituted aliphatic radical of 4 to 10 carbon atoms, unsubstituted or halogen-substituted benzyl or phenyl, halophenyl, or alkylphenyl of a total of up to 10 carbon atoms, R3 is hydrogen, a straight-chain aliphatic radical of up to 10 carbon atoms, a cycloaliphatic radical of 3 to 7 carbon atoms, a branched aliphatic radical of 3 to 10 carbon atoms, haloalkyl, or alkoxyalkyl of 2 to 10 carbon atoms and X is oxygen and may also be sulfur if R2 is unsubstituted or halogen-substituted benzyl, processes for their preparation, and herbicides containing the above compounds.