Disodium maleate
Time: 2012-11-25 15:36:49

Disodium maleate

Synonyms

2-Butenedioic acid (2Z)-, disodium salt;

2-Butenedioic acid (2Z)-, sodium salt (1:2);

Maleic acid, disodium salt;

Category

Anionic Surfactant

> Carboxylate

>> Dicarboxylate

>>> Alkenyl Dicarboxylate

>>>> Linear Alkenyl Dicarboxylate

Chemical Numbering System

CASRN371-47-1

EINECS206-738-1

Molecular Formula & Molecular Weight

Molecular Formula: C4H2Na2O4; C4H4O4.2Na

Molecular Weight: 160.04

Structure

Properties

Appearance    (1), white solid.

Solubility    soluble in water.

Stability    stable. Easily oxidized.

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.7) label:  

Animal Toxicity

Table 1 Animal toxicity values

rat oral LD50

3380mg/kg[1]

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

Biodegradability    biodegradable.

Characteristics    excellent dispersing, hydrotropic abilities.

Synthesis

 

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

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 dispersing agent.

2, Organic synthesis

Use as intermediate in organic synthesis.

3, Electronic industry

Additive in electronic industry.

Manufacturers

 

References

[1]: ChemIDplus. 371-47-1, Disodium maleate

Update: 20140309(1); 20181015(2);