Hexadecanoic Acid Zinc Salt
Synonyms
Palmitic acid zinc salt;
Zinc hexadecanoate;
Zinc palmitate;
Zinc dipalmitate;
Category
Anionic Surfactant
> Carboxylate
>> Chain Carboxylate
>>> Alkyl Carboxylate
>>>> Linear Alkyl Carboxylate
Chemical Numbering System
CASRN:4991-47-3
EINECS:225-652-5
Molecular Formula & Molecular Weight
Molecular Formula: C32H62O4Zn; C32H64O4.Zn
Molecular Weight: 576.24
Structure
Properties
Appearance (1), white powder.
Solubility insoluble in water. soluble in toluene.
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 (Rev.10) label:
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent lubricating, emulsifying, dispersing abilities.
Synthesis
Sodium palmitate reacts with zinc sulfate solution, then obtain.
Quality Standards & Test Methods
1, Physical and chemical indexes
Item |
Physical and chemical indexes |
Solid |
|
Actives, %, ≥ |
95.0 |
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, 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.
(b), Used in cosmetics, should be test for harmful substances; or furtherly test for microorganisms.
Major Uses
1, Typical applications
Use as lubricant.
Use as emulsifying agent, dispersing agent.
Use as deodorant.
2, Household detergents
Use as lubricant, release agent.
3, Personal care products
Deodorant in personal care products.
4, Machinery industry
Lubricant, release agent, glidant in metal processing.
5, Pets
Use as anticaking agent, opacifier.
6, Powder forming
Lubricant, release agent, glidant in powder forming.
7, Coatings
Light absorbing agent in paints.
8, Polymer
Lubricant in plastics (for example: PVC), rubber.
Manufacturers
Update: 20131102(1); 20171225(2);