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68938-81-8

68938-81-8

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68938-81-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68938-81-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,9,3 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 68938-81:
(7*6)+(6*8)+(5*9)+(4*3)+(3*8)+(2*8)+(1*1)=188
188 % 10 = 8
So 68938-81-8 is a valid CAS Registry Number.
InChI:InChI=1/C6H4Cl2O.K/c7-4-1-2-5(8)6(9)3-4;/h1-3,9H;/q;+1/p-1

68938-81-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name potassium,2,5-dichlorophenolate

1.2 Other means of identification

Product number -
Other names Phenol,2,5-dichloro-,potassium salt

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Intermediates
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:68938-81-8 SDS

68938-81-8Upstream product

68938-81-8Relevant articles and documents

Dicamba preparation process

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Paragraph 0051; 0052; 0053, (2017/04/03)

The invention belongs to the technical field of herbicide dicamba preparation and relates to a dicamba preparation process. The dicamba preparation process includes steps: taking benzene as a raw material to generate 1,2,4-trichlorobenzene through directional chlorination, catalysis, re-chlorination and rectification; hydrolyzing the 1,2,4-trichlorobenzene to generate a mixture of 2,5-dichlorophenol and 2,4-dichlorophenol, and separating and purifying to obtain 2,5-dichlorophenol; using the 2,5-dichlorophenol to prepare 3,6-dichlorosalicylic acid; subjecting the 3,6-dichlorosalicylic acid to methylation, saponification, acidification and the like to obtain dicamba. By optimization of technical steps and parameters, the whole dicamba preparation process has advantages of simplicity, low cost, high yield, high selectivity, remarkable reduction of wastewater and increase of equipment utilization rate.

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