Appearance: | White Powder | Water: | 5.0% Max |
---|---|---|---|
Soluble Components In Water: | 1.0% Max | PH: | 5.0-8.0 |
Highlight: | Pharmaceutical Grade Insoluble PVPP Beer Stabilizer,Food Grade Insoluble PVPP Beer Stabilizer,Crospovidone Insoluble PVPP Beer Stabilizer |
Food Grade Insoluble PVPP Beer Stabilizer Crospovidone Pharmaceutical Grade PVPP
Product name: Crospovidone
Synonyms: PVPP, Polyvinylpyrrolidone cross-linked; Polyvinylpolypyrrolidone
CAS No.: 25249-54-1
EINECS No.:201-800-4
Molecular Formula: (C6H9NO)n
Molecular Weight: 111.14176
Properties & Specification
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.
Item | Moisture% | Water-soluble matter % | Free-N-vinylpyrrolidone ppm | N,N’-divinyl-imidazolidone ppm | PH in 1% water | Heavy metal ppm | Nitrogen % | Sulphated ash % | Peroxide ppm | Lead ppm |
PVPP | ≤6.0 | ≤1 | ≤10 | ≤2 | 5-8 | ≤10 | 11.0-12.8 | ≤0.4 | ≤400 | ≤2 |