Naphthenic acid storage

Naphthenic acids are viscous hquids, with phenohc and sulfur impurities present that are largely responsible for their characteristic odor. Their colors range from pale yeUow to dark amber. An odor develops upon storage of the refined acids. Naphthenic acids have wide boiling point ranges at high temperatures (250—350°C). They are completely soluble in organic solvents and oils but are insoluble (<50 mg/L) in water. Commercial naphthenic acids are available in... 

Synonyms Naphthenic acid, sodium salt Naphthenic acids, sodium salt Properties Wh. paste or dk. brn. clear liq. sol. in water, 95% ethanol, acetone sol. < 1 mg/ml in DMSO dens. 1.059 g/cm (20 C) flash pt. > 93.3 C low hydrolyic dissociation Precaution Probably combustible Storage Store at ambient temps. 

The Illinois H-Coal syncrude contains the greatest amount of iron. This iron could be from corrosion during processing or storage, rather than from the coal itself. We have observed high iron contents in California gas oils which contain acidic and corrosive oxygen. In California gas oils, the iron is soluble in the oil as iron naphthenates (iron salts of organic acids) ... 

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