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Isooctanoic Acid

Time:2012-10-03 16:28:35; Reading: 10

Isooctanoic Acid

Synonyms

Isocaprylic acid;

Category

Anionic Surfactant

> Carboxylate

>> Chain Carboxylate

>>> Alkyl Carboxylate

>>>> Branched Alkyl Carboxylate

Chemical Numbering System

CASRN:25103-52-0

EINECS:246-617-0

Molecular Formula & Molecular Weight

Molecular Formula: C8H16O2

Molecular Weight: 144.21

Structure

R: iso-C7.

Properties

Appearance    (1), colorless liquid.

Solubility    soluble in water. soluble in ethyl ether.

Stability    stable.

Risk    Liquid 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.10) label:  

Animal Toxicity

Table 1 Animal toxicity values

rat oral LD50

900mg/kg[1]

rat skin LD50

>2000mg/kg[1]

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

Biodegradability    biodegradable.

Characteristics    excellent lubricating, antibacterial, preservative, emulsifying, dispersing, cleansing, solubilizing abilities.

Synthesis

 

Quality Standards & Test Methods

1, Physical and chemical indexes

Item

Physical and chemical indexes

Liquid

Actives, %, ≥

95.0

Test Methods

(1), Actives

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

GB/T 5173 Surface active agents and detergents-Determination of anionic-active matter by direct two-phase titration procedure

ISO 2271 Surface active agents -- Detergents -- Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure

2, Hazardous substances indexes

Item

Hazardous substances indexes

Liquid

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 cleansing agent.

Use as emulsifying agent, dispersing agent.

Use as preservative.

Use as lubricant.

2, Organic synthesis

Used in preparation of isooctanoic acid salts. Widely isooctanoic acid salts can be used in paints, plastics, etc.

Used in preparation of isooctanoic acid esters. Widely isooctanoic acid esters can be used in fungicides, preservatives, plastics, spices, lubricants, etc.

3, Agriculture

Preservatives in wood processing.

Co-solvent, defoaming agent in pesticides.

4, Hydrocarbon

Gelling agent in hydrocarbons.

Manufacturers

 

References

[1]: ChemIDplus. 25103-52-0, Isooctanoic acid

Update: 20131102(1); 20180312(2);

Document

[Terminology] Dispersion system

[Terminology] Vesicle

Pandect of Ester surfactants (1): Definition

[Terminology] Van Der Waals force

[Terminology] Micellar aggregation number

Standard

Test methods of surfactants, catalog, Chinese national standards

Surfactants, catalog, Chinese national standards

Test methods of materials, catalog, Chinese national standards

Basic standards of materials, catalog, Chinese national standards

Test methods of textile auxiliaries, catalog, Chinese national standards