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Concrete Admixtures

3-Mercaptopropionic acid ( 3-MPA )


Product name

 

3-Mercaptopropionic acid ( 3-MPA )

Synonyms

 

Thiopropionic acid; 3-Thiopropanoic acid;

beta-Mercaptopropionic acid

Molecular Structure

 

Molecular Formula

 

C3H6O2S

Molecular Weight

 

106.14

CAS Registry Number

 

107-96-0

EINECS

 

203-537-0

Properties

Appearance

 

colorless liquid

Assay

 

99% Min

Fe

 

1PPM Max

Cl

 

100PPM Max

Acid

 

525-535

Water

 

0.5% Max

Density

 

1.218

Melting point

 

17-19 ºC

Boiling point

 

110-111 ºC (15 mmHg)

Refractive index

 

1.491-1.493

Flash point

 

93 ºC

Water solubility

 

soluble

Transport and Package

Transport

 

     6.1    Packing group 3

Risk Codes

 

R23/24/25;R34   

Safety Description

 

S26;S36/37/39;S45  

Transport Information

 

UN 2922

Package

 

240kgs/drum or 1.15tons/IBC tank or 25kgs/drum

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