Magnesium PEG cocamide sulfate
Time: 2012-12-01 15:17:02
Magnesium PEG cocamide sulfate
Synonyms
Poly(oxy-1,2-ethanediyl), alpha-sulfo-omega-amino-, N-coco-acyl derivatives, magnesium salts;
Category
Anionic Surfactant
>> Sulfate
>> Amide Group Polyether Sulfate
>> Amide Group Polyoxyethylene Ether Sulfate
>> Natural Substance Amide Derivatives Polyoxyethylene Ether Sulfate
Chemical Numbering System
CAS RNN/A
EINECSN/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
R: coco group.
Properties
Appearance    (1), liquid; (2), paste; (3), solid.
Solubility    soluble in water. The solubility increases with the increase of EO number.
Stability    stable in alkali, weak acid and hard water; unstable in strong acid, easily hydrolyzes.
Risk    Liquid form: irritation, irritation to skin, eye.
GHS (Rev.6) label:
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent cleansing, foaming, emulsifying, wetting, dispersing, solubilizing, foam stabilizing abilities. Resistant to hard water. Performance is affected by EO number, such as: with the increase of EO number, cleansing capability decreases, solubilization capacity increases.
Note    (1), Products that has low content of 1,4-dioxane can be used in children cleaning products.
(2), 1,4-dioxane generated during preparation: probable carcinogen. However, can be acceptable when concentration of 1,4-dioxane is less than 30ppm or less.
Synthesis
Currently, sulfated reaction through continuous reactor (such as: falling film reactor) is the most widely used method for preparing sulfates.
PEG cocamide and sulfur trioxide react through reactor, then magnesium hydroxide neutralizes, finally obtain product.
For further information, please refer to:
US patent 8,921,588 Process for preparing sulfates and/or sulfonates in a micro-reaction system.
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
High-enriched type
Low-enriched type
Actives, %, ≥
60.0
25.0 - 30.0
pH (25°C, 1% solution)
6.5 - 9.5
6.5 - 9.5
1,4-Dioxane, ppm, ≤
30
30
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), pH
GB/T 6368 Surface active agents - Determination of pH of aqueous solution - Potentiometric method
ISO 4316 Surface active agents -- Determination of pH of aqueous solutions -- Potentiometric method
(3), 1,4-Dioxane
GB/T 26388 Determination of dioxane residues in surfactants - Gas chromatographic method
ISO 17280 Surface active agents -- Determination of 1,4-dioxan residues in surfactants obtained from epoxyethane by gas chromatography
2. Hazardous substances indexes
Item
Hazardous substances indexes
High-enriched type
Low-enriched type
Heavy metals (as Pb), mg/Kg, ≤
20
20
As, mg/Kg, ≤
3
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.
Major Uses
1. Typical applications
Use as cleansing agent.
Use as emulsifying agent, dispersing agent.
Use as foam stabilizing agent, foaming agent.
Use as solubilizing agent.
2. Personal care products
Cleansing agent, emulsifying agent in personal care products.
3. Household detergents
Main ingredient or auxiliary ingredient for cleansing agent, foaming agent in laundry detergent, hard surface detergent (for example: glass detergent) and other household products.
4. Industrial cleaning agents
Main ingredient or auxiliary ingredient for cleansing agent, foaming agent in car cleaning products, metal cleaning products and other industrial cleaning products.
5. Emulsion polymerization
Emulsifier, particle size controlling agent in emulsion polymerization.
6. Textile, leather
Use as emulsifier, foaming agent, cleansing agent, solubilizing agent.
7. Pets
Main ingredient or auxiliary ingredient for cleansing agent, foaming agent in shampoos and other pet products.
Product members
Magnesium PEG-3 cocamide sulfate;
Manufacturers
 
Update: 20131018(1); 20170225(2);