Isethionic acid
Synonyms
2-Hydroxyethanesulphonic acid;
Ethanesulfonic acid, 2-hydroxy-;
Category
Anionic Surfactant
> Sulfonate
>> Chain Sulfonate
>>> Hydroxyl Alkyl Sulfonate
>>>> Hydroxyl Linear Alkyl Sulfonate
Chemical Numbering System
CASRN：107-36-8
EINECS：203-484-3
Molecular Formula & Molecular Weight
Molecular Formula: C2H6O4S
Molecular Weight: 126.13
Structure
Properties
Appearance (1), solid; (2), liquid.
Solubility soluble in water.
Stability stable.
Risk Liquid form: corrosion, flammable material; irritation, irritation to skin, eye. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS (Rev.10) label: 
Animal Toxicity
Table 1 Animal toxicity values
|
mouse intraperitoneal LD50 |
50mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent cleansing, wetting abilities.
Synthesis
Epoxyethane reacts with sodium bisulfite, then acidize, obtain.
Or:
Mercaptoethanol reacts with hydrogen peroxide, then obtain.
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
80.0 |
Test Methods
(1), Actives
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Liquid |
|
|
Heavy metals (as Pb), mg/Kg, ≤ |
20 |
|
As, mg/Kg, ≤ |
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.
Major Uses
1, Typical Applications
Use as intermediates in organic synthesis.
Use as cleansing agent.
Manufacturers
References
[1]: ChemIDplus. 107-36-8, Isethionic acid