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聚乙烯硫酸钾实物图(wako现货,含中英文参数说明)

更新时间:2011-01-19      浏览次数:2342

胶体滴定(colloid titration) 是一种简单、快速、准确的测定高分子聚合物电荷的方法。Potassium Polyvinyl Sulfate(聚乙烯硫酸钾''PVSK)于水中可形成带负电的胶体颗粒,Glycol Chitosan(GC)或Methyl Glycol Chitosan(MGC)在酸性水溶液中带正电,利用电性中和的原理,负电胶体颗粒的会与正电胶体颗粒反应达到电性中和。在适当的pH条件下,此两种胶体可*反应形成不溶性沉淀物。使用甲苯胺蓝(Toluidine Blue''TB)为指示剂,与正电性胶体混合时,两者之间没有反应,TB维持蓝色;当悬浮液中胶体带负电时,TB会吸附于胶体表面而现紫色。
滴定时,正电胶体可直接以PVSK溶液为滴定液,TB为指示剂进行滴定;对于负电荷胶体,可以直接以Glycol Chitosan 或MGC滴定,或加入已知的过量的正电胶体,再以PVSK溶液对剩余的正电胶体进行反滴定。
 

The only normal solution for anion colloidal titration. It is used for the quantitative determination of cation high-molecular compounds by direct titration and for the quantitative determination of agar, mucin and high-molecular flocculants through combined use of glycol chitosan solution, which is a cation colloidal titration solution.

N/400 P.V.S.-K
Potassium Polyvinyl Sulfate
Polyvinylsulfuric acid potassium salt
Poly Vinyl Sulfate, Potassium Salt
Potassium Poly(vinylsulfate)
Sulfuric acid, monovinyl ester, polymers, potassium salt
Polyvinyl sulfate potassium salt
Potassium poly(vinyl sulfate)
PVSK
Sulfuric acid, monoethenyl ester, homopolymer, potassium salt 
CAS NO. 26837-42-3