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Potassium C16-18 alkyl phosphate

Time: 2019-03-08 12:38:48; Count: 1

Potassium C16-18 alkyl phosphate


Phosphoric acid, C16-18-alkyl esters, potassium salts;


Anionic Surfactant

> Phosphate

>> Chain Phosphate

>>> Alkyl Phosphate

>>>> Linear Alkyl Phosphate

Chemical Numbering System



Molecular Formula & Molecular Weight

Molecular Formula: N/A

Molecular Weight: N/A


Schematic formula:

R: C16-18; R1: C16-18 or H, or denoted by the sign for monovalent anion.


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.



Quality Standards & Test Methods

1, Physical and chemical indexes


Physical and chemical indexes


Actives, %, ≥


Test Methods

(1), Actives

GB/T 13173 Surface active agents - Detergents - Testing methods

2, Hazardous substances indexes


Hazardous substances indexes


Heavy metals (as Pb), mg/Kg, ≤


As, mg/Kg, ≤


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.




[Terminology] Dispersion system

[Terminology] Vesicle

Pandect of Ester surfactants (1): Definition

[Terminology] Van Der Waals force

[Terminology] Micellar aggregation number


Test methods of surfactants, catalog, Chinese national standards

Surfactants, catalog, Chinese national standards