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