GB/T 5178-2008Surface active agents -- Determination of mean relative molecular mass for technical straight-chain sodium alkylbenzene sulfonates -- Gas-liquid chromatographic method (English PDF)

GB/T 5178-2008 is the English-translated version of 表面活性剂 工业直链烷基苯磺酸钠平均相对分子质量的测定 气液色谱法.

GB/T 5178-2008 — This standard specifies the determination of linear alkyl benzene sulfonate industrial average molecular weight method. This standard applies to the determination of linear alkyl benzene.

This standard does not apply to the determination branched chain alkyl benzene used (due to peak branched chain alkyl benzene can not be identified). Principle 2 Sample off a sulfonic acid group in concentrated phosphoric acid, and extracted with petroleum ether released benzenes.

Determination of alkyl benzene extraction by gas-liquid chromatography the average molecular weight. An average relative molecular mass of LAS. The use of gas-liquid chromatography off alkylbenzene sulfonate group average relative molecular mass Amount, and then add the formula amount SO3Na group minus a hydrogen atomic weight is calculated.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 8 pages — is available in the English PDF.

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