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PVPP
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Product: Views:65PVPP 
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Last updated: 2017-11-06 04:32
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PVPP ( crospovidone )

chemical structure：

Polyvinylpolypyrrolidone

CTFA Name：

 

CAS NO:

 

Molecular Formula:

 

 

 

Insoluble PVPP

 

25249-54-1

 

(C6H9NO)n

 

 

Physical Properties:

exists as white or slight yellow, free flowing hygroscopic power with odourless or faint characteristic smell. It’s insoluble in water, alkali, acid and common organic reagents Stereoscan photographs show that it is voluminous particulars and has large total surface and lots of porosity which is between 2-10nm. It can swell in water easily and can complex with polyphenol, carboxylic acids and other low molecular weight compounds. PVPF can only be used once and PVPR can be reused after regenerated.

 

 

specification：

 

 

 

 

items

moisture%

PH(1% in water)

N%

Sulfate ash%

SolubleComponents%

monomer%

Heavy metals ppm

Expansion Cubic(l/Kg)

Penetrability(l/h*1600cm2)

food grade

<6.0

5-11

11.0-12.8

<0.4

<1.5

<0.1

<10

<6

>4

Pharm grade

<5.0

5-8

12.0-12.8

<0.2

<1.5

<0.1

<10

<6

-

 

Application:

Used as stabilizer for beer, liquor, wine, and many juice and beverage to prolong their storage life;

used as disintegrant for table bill, particular-like granule and capsule drug in Pharmaceutical industry.
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