Standard test method for saponification number of petroleum products
This method covers the determination of the amount of constituents in petroleum products that will saponify under the conditions of the test. Since compounds of sulfur, phosphorus, the halogens, and certain other elements which are sometimes added to petroleum products also consume alkali and acids, the results obtained indicate the effect of these extraneous materials in addition to the saponifiable material present. Results on products containing such materials, on used internal-combustion-engine crank-case oils, and on used turbine oils must be interpreted in this respect. Summary of method: a known weight of the sample, dissolved in methylethylketone is heated with a known amount of alcoholic potassium hydroxide (KOH). The excess alkali is titrated with standard acid and the saponification number calculated.
- OSTI ID:
- 6622337
- Journal Information:
- Annu. Book ASTM Stand.; (United States), Vol. 23; Other Information: ANSI/ASTM--D-94-80
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PETROLEUM PRODUCTS
SAPONIFICATION
ALCOHOLS
HEATING
INORGANIC ACIDS
POTASSIUM HYDROXIDES
TITRATION
ALKALI METAL COMPOUNDS
CHEMICAL REACTIONS
DECOMPOSITION
HYDROGEN COMPOUNDS
HYDROLYSIS
HYDROXIDES
HYDROXY COMPOUNDS
LYSIS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
SOLVOLYSIS
023000* - Petroleum- Properties & Composition