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Dacthal

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Dacthal Basic information

Product Name:
Dacthal
CAS:
1861-32-1
MF:
C10H6Cl4O4
MW:
331.96
EINECS:
217-464-7
Mol File:
1861-32-1.mol
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Dacthal Chemical Properties

Melting point:
155-156°C
Boiling point:
448.04°C (rough estimate)
Density 
1.6496 (rough estimate)
refractive index 
1.5282 (estimate)
form 
neat
Water Solubility 
0.05 g/100 mL
Merck 
14,2839
BRN 
1888840
CAS DataBase Reference
1861-32-1(CAS DataBase Reference)
NIST Chemistry Reference
2,3,5,6-Tetrachloro-1,4-benzenedicarboxylic acid dimethyl ester(1861-32-1)
EPA Substance Registry System
Chlorthal-dimethyl (1861-32-1)
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Safety Information

Safety Statements 
22-24/25
WGK Germany 
2
RTECS 
WZ1500000
HS Code 
29173990
Hazardous Substances Data
1861-32-1(Hazardous Substances Data)
Toxicity
LD50 orally in rats: >3000 mg/kg (Bailey, White)

MSDS

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Dacthal Usage And Synthesis

Chemical Properties

Colorless crystalline

Chemical Properties

Colorless to gray crystalline solid. Practically odorless.

Uses

Pre-emergent herbicide.

Uses

Selective, nonsystemic, preemergent herbicide to control most annual grasses and many broad-leaved weeds.

Potential Exposure

DCPA is an alkyl phthalate; benzene- dicarboxylic acid herbicide, pesticide pre-emergent herbi- cide is used on annual broadleaf weeds and grasses in a wide spectrum of vegetable crops.

Environmental Fate

Soil. Bartha and Pramer (1967) reported that DCPA was degraded by soil microorganisms via cleavage of the herbicide molecule into propionic acid and 3,4-dichloroaniline. The acid was mineralized to carbon dioxide and water and two molecules of 3,4-dichloroaniline were condensed to form 3,3′4,4′-tetrachloro-azobenzene. Metabolites identified in soil and turfgrass thatch are monomethyl tetrachloroterephthalate and 2,3,5,6-tetrachloroterephthalic acid (Hartley and Kidd, 1987; Krause and Niemczyk, 1990). Residual activity in soil and the half-life in soil were reported to be approximately 3 months (Hartley and Kidd, 1987; Worthing and Hance, 1991)

Shipping

UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.

Incompatibilities

May react violently with strong oxidi- zers, bromine, 90% hydrogen peroxide, phosphorus trichloride, silver powders or dust. Incompatible with silver compounds. Mixture with some silver compounds forms explosive salts of silver oxalate.

Waste Disposal

Incineration in a unit with efficient gas scrubbing. Containers must be disposed of properly by following package label directions or by con- tacting your local or federal environmental control agency, or by contacting your regional EPA office.

Dacthal Preparation Products And Raw materials

Raw materials

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J & K SCIENTIFIC LTD.
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010-82848833- ;010-82848833-
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Alfa Aesar
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Energy Chemical
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XiaoGan ShenYuan ChemPharm co,ltd
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Syntechem Co.,Ltd
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