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1861-32-1

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1861-32-1 Usage

Chemical Properties

Different sources of media describe the Chemical Properties of 1861-32-1 differently. You can refer to the following data:
1. Colorless crystalline
2. Colorless to gray crystalline solid. Practically odorless.

Uses

Different sources of media describe the Uses of 1861-32-1 differently. You can refer to the following data:
1. Pre-emergent herbicide.
2. Selective, nonsystemic, preemergent herbicide to control most annual grasses and many broad-leaved weeds.
3. Dacthal is used as a preemergent herbicide.

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.

Check Digit Verification of cas no

The CAS Registry Mumber 1861-32-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,6 and 1 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1861-32:
(6*1)+(5*8)+(4*6)+(3*1)+(2*3)+(1*2)=81
81 % 10 = 1
So 1861-32-1 is a valid CAS Registry Number.
InChI:InChI=1/C10H6Cl4O4/c1-17-9(15)3-5(11)7(13)4(10(16)18-2)8(14)6(3)12/h1-2H3

1861-32-1 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • Alfa Aesar

  • (L08800)  Dimethyl tetrachloroterephthalate, 97%   

  • 1861-32-1

  • 5g

  • 365.0CNY

  • Detail
  • Alfa Aesar

  • (L08800)  Dimethyl tetrachloroterephthalate, 97%   

  • 1861-32-1

  • 25g

  • 1264.0CNY

  • Detail

1861-32-1SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name chlorthal-dimethyl

1.2 Other means of identification

Product number -
Other names DIMETHYL 2,3,5,6-TETRACHLOROTEREPHTHALATE

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Herbicide
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1861-32-1 SDS

1861-32-1Relevant articles and documents

2, 3, 5, 6 - Tetrachloro - 1, 4 - benzenedicarboxylic acid dimethyl manufacturing method

-

, (2021/04/29)

2, 3, 5, 6 - Tetrachloro - 1, 4 - benzenedicarboxylic acid dimethyl [to] horticultural herbicide useful in manufacturing, compared with conventional methods such as reducing environmentally harmful byproducts of hexachlorobenzene penta- chlorobenzene or content, can be efficiently manufactured in an industrial method. (I) formula [a]The manufacturing method of the compound represented, 2, 3, 5, 6 - tetrachloro - 1, 4 - benzenedicarboxylic acid (a), a ketone-based solvent in the presence of a hydrous alkali carbonate, prepared by reacting dimethyl sulfate, formula (I) compounds represented by the process to obtain the crystal, and (b) the crystal was washed with warm water of 30 a-°C 100, then further washed with an organic solvent comprising 30 a-°C 80, said method. [Drawing] no

POTASSIUM FLUORIDE DISPERSION SOLUTION, AND PROCESS FOR PRODUCTION OF FLUORINATED ORGANIC COMPOUND USING THE SAME

-

Page/Page column 7, (2009/04/25)

A potassium fluoride dispersion essentially consisting of potassium fluoride and an aprotic organic solvent having a boiling point higher than that of methanol, which is obtainable by mixing a mixture containing potassium fluoride and 5 to 50 parts by weight of methanol per 1 part by weight of potassium fluoride with the aprotic organic solvent followed by concentrating the obtained mixture, and a process for producing a fluorine-containing organic compound comprising contacting an organic compound having at least one group capable of being substituted nucleophilically with a fluorine atom with the potassium fluoride dispersion.

Study of the Kinetics and Mechanism of the Base-Catalyzed Esterification of Tetrachloroterephthaloyl Chloride with HPLC and Carbon-13 FT-NMR

Langer, Stanley H.,Chu, Alexander H. T.,Bolme, Mark W.,Turner, Michael S.,Quinting, Gregory R.

, p. 3601 - 3648 (2007/10/02)

The pyridine base-catalyzed esterification of tetrachloroterephthaloyl dichloride (R) with methanol was studied at room temperature and found to follow a four-step course; high-perfomance liquid chromatography (HPLC) was used to analyze and characterize intermediates in reaction mixtures.The reaction proceeds with the initial formation of a benzoylpyridinium ion (M) followed by formation of a terephthaloyl dipyridinium ion (N); both are strongly associated with the alcohol solvent molecules as indicated by chromatographic retention times.The pyridinium salts react with alcohol to form a monoester followed by product diester (P) at slower rates.The rate constants for each mechanistic step were obtained from batch reactor studies together with HPLC analysis; the rates for the first two consecutive steps were dependent on the organic base (pyridine and 4-picoline) catalyst concentration.Large, negative values of the entropy of activation were interpreted in terms of a highly ordered transition state in the course of formation of the ionic intermediates.The presence of alcohol was found to be important for the formation of the salts.Carbon-13 FT-NMR spectra of polychlorinated reaction intermediates were obtained at low temperature to enhance sensitivity; results supported conclusions regarding structures and reaction requirements.

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