Ammonium beta-Sitosteryl Sulfate
Time: 2012-09-27 17:22:51
Ammonium beta-Sitosteryl Sulfate
Synonyms
beta-Sitosteryl sulfate, ammonium salt;
Category
Anionic Surfactant
>> Sulfate
>> Cyclic Alcohol Sulfate
>> Alicyclic Enol Sulfate
>> Steroid Sulfate
Chemical Numbering System
CASRN: N/A
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: C29H53NO4S; C29H50O4S.H3N (SciFinder Hill Rules)
Molecular Weight: 511.80
Structure
 
Properties
Appearance    (1), white solid.
Solubility    slightly soluble in water.
Stability    stable. At strong alkali, release ammonia. Easily oxidized.
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 (Rev.6) label:  
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent emulsifying, dispersing, solubilizing, lubricating abilities. Suitable for preparation of a low pH value (neutral to weakly acidic) products.
Note    (1), Avoid using in children care products, such as: skin care products.
Synthesis
Obtained by esterification of beta-sitosterol and sulfur trioxide, by neutralization of ammonia solution.
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
Solid
Actives, %, ≥
80.0
Test Methods
(1), Actives
GB/T 5173 Surface active agents and detergents-Determination of anionic-active matter by direct two-phase titration procedure
ISO 2271 Surface active agents -- Detergents -- Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure
2. Hazardous substances indexes
Item
Hazardous substances indexes
Solid
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 emulsifying agent, dispersing agent.
2. Personal care products
Use as conditioning agent.
Have certain anti-inflammatory, hair growing, hair raising effects.
Manufacturers
 
Update: 20131018(1); 20161001(2);