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CAS

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461-42-7

Ethionic acid, also known as 2-hydroxyethanesulfonic acid, is an organic compound with the chemical formula C2H7O4S. It is a white crystalline solid that is soluble in water and has a molecular weight of 135.14 g/mol. Ethionic acid is a derivative of ethanolsulfonic acid, where one of the hydrogen atoms is replaced by a hydroxyl group. It is used in various applications, including as a chelating agent, a sequestrant in detergents, and a stabilizer in the production of certain chemicals. Due to its ability to form stable complexes with metal ions, ethionic acid is also employed in the treatment of water to remove hardness and in the pharmaceutical industry for the synthesis of various drugs.

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  • 461-42-7 Structure

  • Basic information

    1. Product Name: ethionic acid
    2. Synonyms: 2-(Sulfooxy)ethanesulfonic acid;ethionic acid
    3. CAS NO:461-42-7
    4. Molecular Formula: C2H6O7S2
    5. Molecular Weight: 206.19
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 461-42-7.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: /
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: ethionic acid(CAS DataBase Reference)
    10. NIST Chemistry Reference: ethionic acid(461-42-7)
    11. EPA Substance Registry System: ethionic acid(461-42-7)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 461-42-7(Hazardous Substances Data)

461-42-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 461-42-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,6 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 461-42:
(5*4)+(4*6)+(3*1)+(2*4)+(1*2)=57
57 % 10 = 7
So 461-42-7 is a valid CAS Registry Number.

461-42-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-sulfooxy-ethanesulfonic acid

1.2 Other means of identification

Product number -
Other names ethionic 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:461-42-7 SDS

461-42-7Relevant articles and documents

Process for the production of ethionic acid

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Page/Page column 4, (2015/07/02)

The present invention discloses a process for the production of ethionic acid by reacting ethanol with sulfur trioxide in a molar ratio of 1:2 at a temperature from 40 to 100° C. in a falling film reactor while cooling the reactor with a cooling means.

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