滴浊-丁达尔现象法测试螯合分散剂螯合分散钙能力  

Determination of Chelating Dispersant Power for Calcium Ion with Turbidity Titration-Ding Daer Phenomenon

作　　者：徐应兴[1] 魏艳[1] 申屠鲜艳[1] 姚云芳[1] 

机构地区：[1]浙江传化股份有限公司,浙江杭州311215

出　　处：《广州化工》2014年第19期120-121,147,共3页GuangZhou Chemical Industry

摘　　要：采用滴浊-丁达尔现象方法测定螯合分散剂螯合分散铁能力。在传统滴浊法测试螯合分散钙能力的基础上,以滴定体系出现丁达尔现象判为终点来进行螯合分散剂螯合分散钙能力的测试。考察了样品用量和缓冲溶液用量对测试结果的影响:pH=10的NH3-NH4Cl缓冲溶液取5 mL,液体样品1.0 g或固体样品0.5 g为最佳测试条件。该法滴定终点明显,液体样品精密度小于1%,固体样品小于3%,能够很好地应用于螯合分散钙能力的评价。Turbidity titration - Ding Daer phenomenon method was developed to determine chelating dispersant power for calcium ion. The influence of sample quantity and buffer solution amount was studied. Good sensitivity and RSD were obtained that liquid was suitable for the sample was less than 1% and solid sample was determination of chelating dispersant power for less than 3%. The results indicated that the method calcium ion.

关 键 词：螯合分散剂 钙离子 丁达尔现象 滴浊法 

分 类 号：TS1[轻工技术与工程—纺织科学与工程]