INSOLUBLE POLYVINYLPYRROLIDONE
Prepared at the 33rd JECFA (1988), published in FNP 38 (1988) and in FNP 52 (1992). Metals and arsenic specifications revised at the 63rd
JECFA (2004). An ADI 'not specified' was established at the 27th JECFA (1983)
SYNONYMS Crospovidone, cross linked polyvidone, insoluble PVP, polyvinylpolypyrrolidone, cross linked homopolymer of 1-ethenyl-2-pyrrolidone, insoluble cross linked homopolymer of N-vinyl-1-pyrrolidone, INS No. 1202
DEFINITION A poly-[1-(2-oxo-1-pyrrolidinyl) ethylene], cross-linked in a random fashion produced by the polymerization of N-vinyl-2-pyrrolidone in the presence of either caustic catalyst or N,N'-divinyl-imidazolidone; due to its insolubility in all common solvents the molecular weight range is not amenable to analytical determination.
Assay Not less than 11.0% and not more than 12.8% nitrogen calculated on the anhydrous basis
DESCRIPTION White hygroscopic powder with a faint, non-objectionable odour
FUNCTIONAL USES Colour stabilizer, colloidal stabilizer, clarifying agent
