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4,4'-bis[(4-ethoxyphenyl)azo]stilbene-2,2'-disulphonic acid, commonly known as Eriochrome Black T, is a synthetic organic compound characterized by its dark brown powder form and solubility in water. It is widely recognized for its role as a pH indicator in analytical chemistry, where it exhibits color changes across various pH ranges, facilitating the determination of endpoints in complexometric titrations.

10359-84-9

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10359-84-9 Usage

Uses

Used in Analytical Chemistry:
4,4'-bis[(4-ethoxyphenyl)azo]stilbene-2,2'-disulphonic acid is used as a pH indicator for its ability to change color in different pH ranges, which is crucial for determining the endpoint of complexometric titrations.
Used in Textile Industry:
In the textile industry, 4,4'-bis[(4-ethoxyphenyl)azo]stilbene-2,2'-disulphonic acid is used as a dye, capitalizing on its color-changing properties to create a variety of hues in fabrics.
Used in Manufacturing of Inks and Coatings:
4,4'-bis[(4-ethoxyphenyl)azo]stilbene-2,2'-disulphonic acid is utilized as a component in the production of inks and coatings, where its color characteristics are harnessed to enhance the quality and appearance of these products.
However, it is important to note that 4,4'-bis[(4-ethoxyphenyl)azo]stilbene-2,2'-disulphonic acid is classified as a hazardous substance due to its toxic effects on aquatic life and potential risks to human health if ingested or inhaled. Therefore, strict safety measures should be adhered to during its handling and application.

Check Digit Verification of cas no

The CAS Registry Mumber 10359-84-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,3,5 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 10359-84:
(7*1)+(6*0)+(5*3)+(4*5)+(3*9)+(2*8)+(1*4)=89
89 % 10 = 9
So 10359-84-9 is a valid CAS Registry Number.

10359-84-9SDS

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 4,4'-bis[(4-ethoxyphenyl)azo]stilbene-2,2'-disulphonic acid

1.2 Other means of identification

Product number -
Other names 4,4'-Bis(p-ethoxyphenylazo)-2,2'-stilbenedisulfonic acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
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:10359-84-9 SDS

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