Trimethylamine oxide, dihydrate
Synonyms
Methanamine oxide, N,N-dimethyl, dihydrate;
N,N-Dimethylmethanamine N-oxide, dihydrate;
Trimethyloxamine, dihydrate;
Category
Zwitterionic Surfactant
> Amine Oxide
>> Fatty Amine Oxide
>>> Linear Alkyl Amine Oxide
Chemical Numbering System
CAS: 62637-93-8
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: C3H13NO3; C3H9N1O.2H2O
Molecular Weight: 111.14
Structure
Properties
Appearance (1), colorless to pale yellow liquid.
Solubility soluble in water.
Stability stable.
Risk Liquid form: irritation, irritation to skin, eye.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
rabbit subcutaneous LDLo |
3000mg/kg[1] |
|
rat oral LD50 |
8700mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent antistatic, permeating abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Liquid |
|
|
Actives, %, ≥ |
30.0 |
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 intermediate in organic synthesis.
Use as dispersing agent.
Use as insect attractant..
2, Personal care products
Masking agent, humectant in personal care products.
Manufacturers
References
[1]: ChemIDplus. 62637-93-8, Trimethylamine oxide dihydrate
Update: 20140729(1); 20190714(2);