Agent Name

Naphthenic acid

CAS Number

1338-24-5

Major Category

Other Classes

Synonyms

Acide naphtenique [ISO-French]; Agenap; Carboxylic acids, naphthenic; Naphid; Sunaptic acid B; Sunaptic acid C; Naphthenic acids; Naphthenic acids, liquid; Naphthenic acids, solid; [ChemIDplus] UN3082

Category

Other Organic Compounds

Description

Light yellow to black liquid; [ICSC] Commercial grade: dark liquid with an unpleasant odor; [Hawley]

Sources/Uses

A mixture of saturated fatty acids extracted from petroleum and used to make metallic naphthenates; [Hawley] Used to make succinic acid, organic peroxides, corrosion inhibitors, and metal naphthenates (used as lubricants, driers, catalysts, fungicides, and emulsifiers); [HSDB] A mixture of cyclopentyl and cyclohexyl carboxylic acids with 9-20 carbons per molecule; Present in crude oil, naphthenic acids cause corrosion problems in oil refineries; [Wikipedia]

Comments

A skin and eye irritant; May cause liver and CNS injury; [ICSC] A moderate skin and eye irritant; [HSDB] A skin and eye irritant; [eChemPortal: ERMA] An irritant; [MSDSonline]

Exposure Assessment
Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Environmentally hazardous substances, liquid, n.o.s."

Adverse Effects
Neurotoxin

Other CNS Neurotoxin

Hepatotoxin

Hepatotoxin, Secondary

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Biomedical References

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: