| 络合滴定黑荆栲胶中单宁含量的新方法 |
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| 引用本文： | 刘佳铭.络合滴定黑荆栲胶中单宁含量的新方法[J].林产化学与工业,1997,17(3):63-66. |
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| 作者姓名： | 刘佳铭 |
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| 作者单位： | 漳州师范学院 |
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| 摘 要： | 利用单宁分子结构中酚羟基能与Ｐｂ＾２＋络合的原理，以Ｋ２ＣｒＯ４为指示剂，ＰＡＭ作终点增敏剂，用Ｐｂ＾２＋标准溶液络合滴定黑荆栲胶中单宁的新方法。该法比皮粉法快速、准确。
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| 关 键 词： | 络合滴定法 黑荆栲胶 单宁 栲胶 胶粘剂 |
COMPLEXOMETRIC TITRATION FOR DETERMINING TANNINCONTENTINBLACKWATTLE TANNINEXTRACT |
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| Liu,Jiaming.COMPLEXOMETRIC TITRATION FOR DETERMINING TANNINCONTENTINBLACKWATTLE TANNINEXTRACT[J].Chemistry & Industry of Forest Products,1997,17(3):63-66. |
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| Authors: | Liu Jiaming |
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| Institution: | Zhangzhou Teachers College Fujian Zhangzhou 363000 |
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| Abstract: | Based on the performance of phenolic hydroxyl groups in tannin molecular structure complexing with Pb 2 ,a new titrative method using K 2CrO 4 as indicator,polyacrylamide as terminal sharp aggrandized agent and Pb 2 standard solution as deposit titrant for determining tannin content in modified black wattle tannin extract is devised.This method is much quicker than hide powder method and gives satisfactory results. |
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| Keywords: | Complexometric titration method Black wattle tannin extract Tannin |
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