三级片视频播放,精品三级片在线观看,A级性爱视频,欧美+日韩+国产+无码+小说,亲子伦XX XX熟女,秋霞最新午夜伦伦A片黑狐,韩国理伦片漂亮的保拇,一边吃奶一边做边爱完整版,欧美放荡性护士videos

聚乙烯吡咯烷酮    sigma交叉貨號:暫無
Polyvinyl pyrrolidone K-30 (PVP K-30)
產品編號 02102786.1
英文名 Polyvinyl pyrrolidone K-30 (PVP K-30)
貨號與規格    庫存    價格 (RMB)    數量
02102786.1  100g          554.12
中文名 聚乙烯吡咯烷酮
儲存條件 ROOM TEMPERATURE
Applications

Polyvinylpyrrolidone K 30 is used as thickeners, dispersing agents, detoxicant, complexing agent, lubricants and binders. Polyvinylpyrrolidone is a component of Denhardt′s Solution.

Properties
Keywords Hydrophilic Polymers, Hydrophobic Polymers, Materials Science, Poly(vinylpyrrolidinone) (PVP), Poly(vinylpyrrolidinone) (PVP) and Copolymers, Poly(vinylpyrrolidone), Polymer Science, Polymers, Vinylpyridine and Vinypyrrolidone Polymers 
Key Applications Thickeners
Dispersing agents
Detoxicant
Complexing agent 
Product Type Biochemicals 
Density 1.23-1.29 g/mL(Lit.) 
Viscosity 27 - 35 cps(1% aq soln) 
Presentation White Powder 
Format Powder 
pH 2.8 - 4.2(5% aq soln) 
Detection Method FTIR 
Solubility Soluble in water(> 100 mg/mL, 2.5% aq solution), methanol, ethanol, alcohol, chloroform and glycerol, acetic acid; insoluble in dimethyl ether, ethyl acetate, acetone, toluene, xylene, mineral oil, carbon tetrachloride. If the pH value of the solutions is higher than 6, the viscosity will increase slightly on storage, particularly at elevated temperatures; if the pH value is less than 7 and the concentration is lower than 30%, the solutions tend to become moldy during storage. The addition of a preservative can prevent mold and fungus growth during storage. Addition of large quantities of salts will precipitate the PVP from solution. 
Storage & Handling Store at Room Temperature(15-30 °C). 
Packsize Numeric Quantity 100 g||500 g||1 kg||5 kg 

Keywords Hydrophilic Polymers, Hydrophobic Polymers, Materials Science, Poly(vinylpyrrolidinone) (PVP), Poly(vinylpyrrolidinone) (PVP) and Copolymers, Poly(vinylpyrrolidone), Polymer Science, Polymers, Vinylpyridine and Vinypyrrolidone Polymers 
Key Applications Thickeners
Dispersing agents
Detoxicant
Complexing agent 
Product Type Biochemicals 
Density 1.23-1.29 g/mL(Lit.) 
Viscosity 27 - 35 cps(1% aq soln)