Potassium C16-18 alkyl phosphate
Synonyms
Phosphoric acid, C16-18-alkyl esters, potassium salts;
Category
Anionic Surfactant
> Phosphate
>> Chain Phosphate
>>> Alkyl Phosphate
>>>> Linear Alkyl Phosphate
Chemical Numbering System
CASRN：90506-45-9
EINECS：291-907-2
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Schematic formula:
R: C16-18; R1: C16-18 or H, or denoted by the sign for monovalent anion.
Properties
Appearance (1), white to slightly yellow solid.
Solubility slightly soluble in water, or soluble in water; soluble in ethanol.
Stability stable. Under strong acid condition, easily hydrolyzed.
Risk Solid form: irritation, irritation to skin, eye, respiratory system.
GHS (Rev.10) label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent emulsifying, dispersing, anticorrosive, antirust, lubricating, cleansing, solubilizing, antistatic, wetting abilities. Low foaming. Resistance to high concentration of alkali. Intolerance to hard water. Can be used as soap substitute.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
90.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents - Detergents - Testing methods
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.
Use as anticorrosive agent, antirust agent.
Use as cleansing agent.
2, Machinery
Lubricant, corrosion inhibitor, antirust agent in metalworking fluids.
3, Household detergents
Cleansing agent in household cleaning products.
4, Industrial cleaning agents
Cleansing agent, dispersing agent, antirust agent in industrial cleaning.
5, Textile
Antistatic agent, cleansing agent in textile.
6, Leather
Fat-liquoring agent in leather.
Manufacturers