Calcium beta-Sitosteryl Sulfate
Time: 2012-09-27 17:27:40
Calcium beta-Sitosteryl Sulfate
Synonyms
beta-Sitosteryl sulfate, calcium 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: C58H98CaO8S2; C58H100O8S2.Ca (SciFinder Hill Rules)
Molecular Weight: 1027.60
Structure
Properties
Appearance    (1), white to pale yellow powder.
Solubility    insoluble in water.
Stability    stable. 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, lubricating abilities.
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 calcium hydroxide.
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
Solid
Actives, %, ≥
95.0
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.
Good anti-aging, skin and hair conservation effects.
Manufacturers
 
Update: 20131018(1); 20161001(2);