Potassium C16-18 alkyl phosphate
Time: 2019-03-08 12:38:48

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

CASRN90506-45-9

EINECS291-907-2

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.7) 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