Nonanoic Acid
Time: 2012-10-03 16:22:51
Nonanoic Acid
n-Nonanoic acid;
Pelargonic acid;
1-Octanecarboxyic acid;
1-Octanecarboxylic acid;
FEMA No. 2784;
Anionic Surfactant
>> Carboxylate
>> Chain Carboxylate
>> Alkyl Carboxylate
>> Linear Alkyl Carboxylate
Chemical Numbering System
Molecular Formula & Molecular Weight
Molecular Formula: C9H18O2
Molecular Weight: 158.24
Appearance    (1), colorless oily liquid.
Solubility    slightly soluble in water. soluble in ethanol, benzene.
Physical - chemical properties
Water solubility, mg/L
284 (30°C)[1]
Melting point, °C
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.7) label:  
Animal Toxicity
Table 1 Animal toxicity values
mouse intravenous LD50
mouse oral LD50
> 5000mg/kg[2]
rat oral LD50
> 5000mg/kg[2]
rat skin LD50
> 2000mg/kg[2]
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent cleansing, emulsifying, dispersing, solubilizing, lubricating abilities. Nonresistant to hard water.
Obtained that oleic acid is oxidized by nitric acid or ozone.
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
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
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.
(b), Used in cosmetics, should be test for harmful substances; or furtherly test for microorganisms.
Major Uses
1. Typical applications
Use as cleansing agent.
Use as emulsifying agent, dispersing agent.
2. Household detergents
Use as cleansing agent.
3. Organic synthesis
Widely used in preparation of nonanoic acid esters. Nonanoic acid esters can be used in personal care products, perfume, medicine, etc.
Used in preparation of nonanoic acid salts. Nonanoic acid salts can be used in cleaning products, paints, etc.
4. Personal care products
Use as cleansing agent, emulsifying agent, masking agent, perfume.
5. Pets
Use as cleansing agent, emulsifying agent.
6. Machinery
Lubricant, corrosion inhibitor in metal processing oil.
7. Coatings
Drier in paint.
8. Food
Use as perfume.
[1]: HSDB. 112-05-0, Nonanoic acid
[2]: ChemIDplus. 112-05-0, Nonanoic acid
Update: 20131102(1); 20180220(2);