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70340

Sigma-Aldrich

Naphthenic acid

technical

Synonym(s):

Acidol (petroleum by-product), Sunaptic B

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About This Item

CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352100
NACRES:
NA.22

grade

technical

Quality Level

form

liquid

acid value

~215

density

0.92 g/mL at 20 °C (lit.)

InChI

1S/C10H18O2/c1-2-8-3-4-9(7-8)5-6-10(11)12/h8-9H,2-7H2,1H3,(H,11,12)

InChI key

WVRFSLWCFASCIS-UHFFFAOYSA-N

Application

Naphthenic acid is commonly used in the synthesis of useful metal naphthenates such as copper naphthenate, a wood preservative; titanium naphthenate, a precursor for the preparation of titanium oxide thin films and a rare earth naphthenate, a lubricant oil additive. It can also be in the synthesis of biodegradable naphthenic acid ionic liquids.

Analysis Note

petroleum product, techn. mixture of alkylated cyclopentane carboxic acids

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1

Storage Class

10 - Combustible liquids

wgk_germany

WGK 1

flash_point_f

213.8 °F - closed cup

flash_point_c

101 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter


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A review of the occurrence, analyses, toxicity, and biodegradation of naphthenic acids.
Clemente J S and Fedorak P M
Chemosphere, 60(5), 585-600 (2005)
Biodegradable naphthenic acid ionic liquids: synthesis, characterization, and quantitative structure?biodegradation relationship.
Yu Y, et al.
Chemistry?A European Journal , 14(35), 11174-11182 (2008)
Navdeep S Toor et al.
Chemosphere, 90(2), 449-458 (2012-09-25)
Oil sands process-affected waters (OSPWs) produced during the extraction of bitumen at the Athabasca Oil Sands (AOS) located in northeastern Alberta, Canada, are toxic to many aquatic organisms. Much of this toxicity is related to a group of dissolved organic
Hideo Kawaguchi et al.
Water research, 46(17), 5566-5574 (2012-08-21)
The in situ oil sands production method called steam-assisted gravity drainage (SAGD) reuses process wastewater following treatment. However, the treatment and reuse processes concentrate contaminants in the process water. To determine the concentration and dynamics of inorganic and organic contaminants
Navdeep S Toor et al.
Environmental toxicology and chemistry, 32(10), 2207-2216 (2013-06-05)
The toxicity of oil sands process-affected waters (OSPW) from the Athabasca Oil Sands (AOS) in northern Alberta, Canada, is related to a relatively persistent group of dissolved organic acids known as naphthenic acids (NAs). Naphthenic acids are a complex mixture

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