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羧甲基淀粉钠的制备
引用本文:张来新,杨琼. 羧甲基淀粉钠的制备[J]. 应用化工, 2001, 30(4): 25-28
作者姓名:张来新  杨琼
作者单位:宝鸡文理学院化学化工系,
摘    要:以面粉和氯乙酸为主要原料 ,在NaOH存在条件下加热搅拌合成了羧甲基淀粉钠 ,其最佳投料比为面粉∶氯乙酸∶氢氧化钠 =0 2 5∶0 6∶1(摩尔比 ) ,反应温度为 5 0℃~ 74℃ ,合成出的产品质量好 ,产率高

关 键 词:羧甲基淀粉钠(CMS)  醚化  取代度  粘度
文章编号:1671-3206(2001)04-0025-04
修稿时间:2001-06-28

Preparation of sodium carboxymethy starch
ZHANG Lai xin,YANG Qiong. Preparation of sodium carboxymethy starch[J]. Applied chemical industry, 2001, 30(4): 25-28
Authors:ZHANG Lai xin  YANG Qiong
Abstract:The sodium carboxymethyl starch was synthesized with flour and chloroacetic acid as the main starting materials in the presence of NaOH under heating.The best proportion is flour∶ClCH 2COOH∶NaOH=0.25∶0.6∶1(mol).The temperature of reaction is 50 ℃~74 ℃.So the synthetic product is of a great yield with the best quantity.
Keywords:sodium carboxymethyl starch(CMS)  etherification  substitutionrate  viscosity
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