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十五烷基磺酰氯(简称AS15)被广泛用于农用碳酸氢铵的添加剂,制革鞣剂和阴离子表面活性剂的中间体。本文介绍联苯胺盐酸盐-氢氧化钠法,测定AS15。测定原理如下: (一)操作步骤称取1.5gAS15试样(称准至0.0002g)置于100ml锥形瓶中,加入18ml 30％NaOH溶液,由78-1型磁力加热搅拌器加热。搅拌进行皂化并控温90℃左右,反应1h,即成乳状;将皂化液用50ml蒸馏水洗入100m烧杯中,用1+1盐酸中和,控制pH=8,加入20ml联苯胺盐酸盐溶液。溶液以0.1mol/L稀盐酸调节pH至
Pentadecyl sulfonyl chloride (AS15) is widely used as an agricultural ammonium bicarbonate additive, tanning agent and anionic surfactant intermediates. This article describes the benzidine hydrochloride - sodium hydroxide method for the determination of AS15. The measuring principle is as follows: (A) Procedure Weigh 1.5gAS15 sample (weighed to 0.0002g) placed in 100ml conical flask, 18ml 30% NaOH solution was added, heated by a 78-1 magnetic heating stirrer. Stirring for saponification and temperature control 90 ° C, the reaction 1h, that is creamy; the saponification solution was washed with 50ml distilled water 100m beaker, neutralized with 1 +1 hydrochloric acid, pH = 8, was added 20ml benzidine hydrochloride solution . The solution to 0.1mol / L dilute hydrochloric acid to adjust the pH to