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Description of ASTM-D500 2009ASTM D500-95-Reapproved2009Historical Standard: Standard Test Methods of Chemical Analysis of Sulfonated and Sulfated OilsASTM D500Scope 1.1 These test methods cover the chemical analysis of sulfonated and sulfated oils. The analytical procedures appear in the following order:
1.2 The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage. 4.1 This test method covers the determination of water existing in a sample of sulfonated or sulfated oil, or both, by distilling the sample with a volatile solvent. The method is applicable only to sulfonated and sulfated oils that do not contain the following: mineral acids, free sulfonic acids, or free sulfuric acid esters; or alkali hydroxides, carbonates or acetates; or alcohol, glycerin, diethylene glycol, acetone, or other water-miscible volatile compounds. 10.1 This test method covers the determination of the percentage of water and other compounds volatile at about 100°C existing in a sample of sulfonated or sulfated oil, or both, by rapid evaporation. The test method is applicable only to sulfonated and sulfated oils that do not contain the following: mineral acids, free sulfonic acids or free sulfuric acid esters, ammonia, acetic acid or similar volatile acids, alkali hydroxides, carbonates, acetates or similar salts that may react with oleic acid at elevated temperatures liberating volatile acids, or glycerin, diethylene glycol, xylene, or other compounds of similar volatility. 15.1 This test method covers the determination of the organically combined sulfuric anhydride existing in a sample of sulfated oil by boiling the sample with sulfuric acid and determining the acidity of the reaction mixture. This method is applicable only to oils that split off their combined SO3 upon boiling with mineral acids and that do not contain compounds that cannot be accurately titrated in water solution with methyl orange as the indicator. 20.1 This test method covers the determination of the organically combined sulfuric anhydride existing in a sample of sulfated oil by extracting the undecomposed sulfated fat and other fatty matter over an acidulated, concentrated salt solution, boiling the residue with sulfuric acid after evaporating the solvent, and titrating the products of reaction. This method is applicable only to sulfated oils that split off their combined SO3 upon boiling with mineral acids, including samples containing sodium acetate or other compounds that cannot be accurately titrated in water solution with methyl orange as the indicator. 25.1 This test method covers the determination of the organically combined sulfuric anhydride existing in a sample of sulfonated or sulfated oil, or both, by extracting the undecomposed sulfonated or sulfated fat and other fatty matter over an acidulated, concentrated salt solution, and ashing the purified extract. This test method is applicable to all types of sulfonated and sulfated oils, including true sulfonic acid oils and those containing sodium acetate or similar partially titratable compounds. 29.1 This test method covers the determination of the total desulfated fatty matter in a sample of sulfated oil by decomposition with diluted mineral acids and extraction of the decomposed fat. This test method is not applicable to samples that are not completely decomposed upon boiling with mineral acids. 33.1 This test method covers the determination of the total active ingredients in a sample of sulfonated or sulfated oil, or both, as it exists in the original sample by extracting the undecomposed sulfonated or sulfated fat and other fatty matter over an acidified concentrated salt solution. Free alkali or alkali bound as soap is not included. Note 5—In the case of sulfated oils only, this determination may also be estimated by calculation (see 36.3), as it is equivalent to the sum of the desulfated fatty matter and neutralized organically combined sulfuric anhydride. 37.1 This test method covers the determination of the unsaponifiable, nonvolatile (above 80°C) matter existing in a sample of sulfated oil by saponifying the desulfated fatty matter and extracting the unsaponifiable matter from the soap solution with ethyl ether. 42.1 This test method covers the determination in a sample of sulfonated or sulfated oil, or both, the inorganic sulfates, chlorides, and all other salts that are insoluble in a mixture of oleic acid and chloroform. 47.1 This test method covers the determination of the total alkalinity existing in a sample of sulfonated or sulfated oil, or both, by titrating a water solution of the sample with mineral acid in the presence of methyl orange as the indicator. This test method covers the determination of the total alkalinity of the fixed alkali, ammonia and triethanolamine bound as soap, free alkali, and the alkalinity of titratable alkaline salts, but not that of nontitratable alkaline salts. 50.1 This test method covers the determination of the total ammonia in a sample of sulfonated or sulfated oil, or both, by boiling a water solution of the sample with excess alkali and determining by titration the loss in alkali after the boiling. 53.1 This method of analysis covers the determination of the acidity as free fatty acids existing in a sample of sulfonated or sulfated oil or both by titrating the sample dissolved in a solvent. It is not applicable in the presence of ammonium or triethanolamine soaps or salts, or other compounds that do not react neutral to phenolphthalein when dissolved in alcohol. 57.1 This test method covers the determination of the acidity as free fatty acids existing in a sample of sulfonated or sulfated oil or both by titrating a water solution of the sample with phenolphthalein as the indicator. It is not applicable in the presence of ammonia or triethanolamine soaps or acid salts. 61.1 This test method covers the determination of the acidity as free fatty acids in the presence of ammonium or triethanolamine soaps, or both, existing in a sample of sulfonated or sulfated oils, or both, by calculation from the total alkalinity and the free-and-alkali-combined fatty acids. 64.1 This test method covers the determination of water-immiscible organic solvents that are volatile with steam existing in a sample of sulfonated or sulfated oil, or both. Alcohol or other volatile compounds that are mutually soluble in water and solvents interfere in this test method. Keywords Acidity, alkalinity, pH--detergent materials; Acid number; Active ingredients (in detergents); Ammonia content; Anhydride content; Chemical analysis--cleaning (detergent) materials/applications; Desulfated fatty matter; Fatty acids--tests; Fatty matter content; Inorganic salts content; Moisture analysis--detergent materials; Nonvolatile matter content--chemicals; Organically combined sulfuric anhydride; Solvents; Sulfonated and sulfated oils; Sulfuric anhydride; Total desulfated fatty matter; Unsaponifiable matter content; Volatile matter content--cleaning compounds/detergents ICS Code ICS Number Code 71.100.40 (Surface active agents) DOI: 10.1520/D0500-95R09 This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. 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