Disodium hydroxysulfoacetate
Synonyms
Acetic acid, 2-hydroxy-2-sulfo-, sodium salt (1:2);
Acetic acid, hydroxysulfo-, disodium salt;
Disodium 2-hydroxy-2-sulfonatoacetate;
Disodium alpha-sulfoglycolate;
Category
Anionic Surfactant
> Sulfonate
>> Chain Sulfonate
>>> Carboxyl Alkyl Sulfonate
>>>> Carboxyl Linear Alkyl Sulfonate
Chemical Numbering System
CAS: 29736-24-1
EINECS: 608-408-6
Molecular Formula & Molecular Weight
Molecular Formula: C2H2Na2O6S; C2H4O6S.Na2
Molecular Weight: 200.08
Structure
Properties
Appearance (1), solid; (2), liquid.
Solubility soluble in water.
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent wetting, dispersing, chelating abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
90.0 |
Test Methods
(1), Actives
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
|
Solid |
Liquid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
20 |
|
As, mg/kg, ≤ |
3 |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances; or furtherly test for microorganisms.
Major Uses
1, Typical Applications
Use as dispersing agent.
2, Personal care products
Reducing agent in personal care products.
Manufacturers
Update: 20131027(1); 20170807(2);