USP Pharmaceutical Grade Crospovidon PVPP CAS 25249-54-1

Min.Order: 100

Product origin: Hefei, Anhui, China

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US$ 1500-5000 $

Description

Crospovidone Pvpp CAS 25249-54-1

Product name: Polyvinylpolypyrrolidone / Crospovidone
Synonyms: PVPP
CAS No.: 25249-54-1
Molecular Formula: (C₆H₉NO)_n

White or slight yellow,free flowing hydroscopic powder with odorless 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 2-10mm.It can swell in water easily and can complex with polypbenol,carboxylic acids other low molecular weight compounds.PVPF can only be used once and PVPR can be reused after regenerated.

Application
Used as stabilizer for beer,wine,vinegar and many juice and beverage to prolong their storage life.
Used as disintegrant for tabel pill,parrical-like granule and capsule drug in Harmaceutical industry.

Specification

TEST ITEMS	SPECIFICATIONS	TEST VALUE
Appearance	White powder	Complies
Soluble components %	< 1.5	0.29
Loss on drying %	≤ 5.0	3.25
N-vinylpyrrolidone ppm	≤ 10	< 10
PH value (1% in water)	5-8	6.85
Arsenic ppm	≤ 3	< 3
Moisture %	< 5.0	3.59
Sulfateash %	< 0.2	0.035
Nitrogen content %	11.0-12.8	11.65
Heavy metal (as Pb) ppm	≤ 10	< 10
Peroxides(as H2O2) ppm	≤ 400	< 400