2,3-Butanediol
Synonyms
2,3-Butylene glycol;
Butane-2,3-diol;
Category
Non-ionic surfactant
> Alcohol
>> Fatty Alcohol
Chemical Numbering System
CAS: 513-85-9
EINECS: 208-173-6
Molecular Formula & Molecular Weight
Molecular Formula: C4H10O2
Molecular Weight: 90.12
Structure
Properties
Appearance (1), colorless to slightly yellow liquid.
Solubility miscible in water.
Stability stable.
Risk Liquid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
mouse intraperitoneal LD50 |
6075mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent cleansing, dispersing abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
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.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as solvent.
Use as pour point depressant.
Use as intermediate in organic synthesis. For example, used in polyesters, plasticizers, pharmaceuticals, dyes, surfactants.
2, Personal care products
Humectant, masking agent, conditioning agent, solvent in personal care products.
Manufacturers
References
[1]: ChemIDplus. 513-85-9, 2,3-Butanediol
Update: 20130920(1); 20190915(2)