Lecithin
Time: 2013-05-26 02:12:12

Lecithin

Synonyms

Lecithine;

Phosphatidylcholine;

Lecithins;

Category

Zwitterionic Surfactant

> Phosphate Type

Chemical Numbering System

CASRN: 8002-43-5

EINECS: N/A

Molecular Formula & Molecular Weight

Molecular Formula: N/A

Molecular Weight: N/A

Structure

R, R1: fatty acids alkyl.

Properties

Appearance    (1), solid.

Solubility    slightly soluble in water.

Stability    stable.

Risk    Solid form: irritation, irritation to skin, eye, respiratory system.

GHS (Rev.7) label: 

Animal Toxicity

Table 1 Animal toxicity values

rat oral LD

> 8mL/kg[1]

Ecology    may be hazardous to environment. Water body should be given special attention.

Biodegradability    biodegradable.

Characteristics    excellent emulsifying, dispersing, antistatic, anticorrosive, solubilizing, lubricating abilities.

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.

(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.

Major Uses

1, Typical applications

Use as emulsifying agent, dispersing agent.

Use as lubricant, corrosion inhibitor.

2, Personal care products

Conditioning agent, emollient, emulsifying agent, antistatic agent in personal care products. Good compatibility with skin.

Manufacturers

 

References

[1]: ChemIDplus. 8002-43-5, Lecithin

Update: 20130821(1); 20190701(2);