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ISO 6841:1988
M00001339
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ISO 6841:1988 Surface active agents -- Technical straight-chain sodium alkylbenzenesulfonates -- Determination of mean relative molecular mass by gas-liquid chromatography
standard by International Organization for Standardization, 06/01/1988
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A test portion is desulfonated in concentrated phosphoric acid medium and the liberated alkylbenzene is extracted with light petroleum. The mean relative molecular mass of the extracted alkylbenzene is determined chromatograhically. The mean relative molecular mass of the alkylbenzenesulfonate is calculated.