聚乙烯硫酸鉀PVSK(wako現貨)
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聚乙烯硫酸鉀,日本wako原裝,500ml,大量現貨
聚乙烯硫酸鉀(原裝)是WAKO產品之一,生化實驗用。
膠體滴定(colloid titration) 是一種簡單、快速、準確的測定高分子聚合物電荷的方法。Potassium Polyvinyl Sulfate(聚乙烯硫酸鉀,PVSK)于水中可形成帶負電的膠體顆粒,Glycol Chitosan(GC)或Methyl Glycol Chitosan(MGC)在酸性水溶液中帶正電,利用電性中和的原理,負電膠體顆粒的會與正電膠體顆粒反應達到電性中和。在適當的pH條件下,此兩種膠體可*反應形成不溶性沉淀物。使用甲苯胺藍(Toluidine Blue,TB)為指示劑,與正電性膠體混合時,兩者之間沒有反應,TB維持藍色;當懸浮液中膠體帶負電時,TB會吸附于膠體表面而現紫色。
滴定時,正電膠體可直接以PVSK溶液為滴定液,TB為指示劑進行滴定;對于負電荷膠體,可以直接以Glycol Chitosan 或MGC滴定,或加入已知的過量的正電膠體,再以PVSK溶液對剩余的正電膠體進行反滴定。
WAKO(和光純藥)是世界五大實驗室化學試劑供應商之一,其2003年全公司銷售額為475億美圓,也是世界實驗室試劑zui全的公司之一,長期以來其一直以高品質的試劑而*。您若需要日本Wako更詳細的產品介紹,請訪問網 站:Search.wako-chem.com。
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Potassium Polyvinyl Sulfate Titration Solution (N/400)
Wako
Cat. No. 164-21655Grade: for Colloidal Titration
Storage condition: Keep at RT.
Manufacturer: Wako
Summary
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.
Appearance: Colorless - slightly yellowish brown, clear liquid
Synonym 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
Molecular Weight (162.21)n
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Potassium Polyvinyl Sulfate
Wako
Grade: for Colloidal Titration
Storage condition: Keep at 2-10 degrees C.
Manufacturer: Wako
Summary
This product is for research use only. Do not administer it to human.
Colloidal titration is widely used for polyelectrolyte determination.
Positive colloid solution can be titrated with potassium polyvinyl sulfate,
and negative colloid solution can be titrated with glycol chitosan, methyl
glycol chitosan, or polydiallyldimethyl ammonium chloride.
Synonym
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
Molecular Formula: C2H3O4SK
Appearance: White ~ pale brown, crystalline powder ~ powder or small mass
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