Copper Stearate
Synonyms
Stearic acid, copper salt;
Octadecanoic acid, copper salt;
Copper octadecanoate;
Cupric stearate;
Category
Anionic Surfactant
> Carboxylate
>> Chain Carboxylate
>>> Alkyl Carboxylate
>>>> Linear Alkyl Carboxylate
Chemical Numbering System
CAS: 660-60-6
EINECS: 211-540-3
Molecular Formula & Molecular Weight
Molecular Formula: C36H70CuO4; C36H72O4.Cu
Molecular Weight: 630.48
Structure
Properties
Appearance (1), sky-blue to blue-green powder.
Solubility insoluble in water. soluble in toluene, chloroform, benzene, turpentine.
Stability stable.
Risk Solid 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: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent antimicrobial, antibacterial, preservative, emulsifying, dispersing abilities.
Synthesis
Sodium stearate reacts with copper sulfate solution or copper acetate ethanol solution, then obtain.
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
|
Cu, %, ≤ |
|
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
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), Cu
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
Heavy metals (as Pb, except Cu), 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 antimicrobial agent, antibacterial agent.
Use as preservative.
Use as waterproofing agent.
2, Wood
Use as preservative.
3, Textile
Use as preservative.
4, Machinery industry
Lubricant in metal processing, machinery.
5, Plastics
Use as photodegrading agent. For example: PVC.
6, Coatings
Fungicide, antifouling agent in paints.
7, Organic synthesis
Catalyst used in manufacture of tertiary amine.
Manufacturers
Update: 20131102(1); 20171215(2);