Polyvinylpyrrolidone K90
Ulanqab Kema New Material Co., Ltd. is one of the most experienced manufacturers and suppliers of polyvinylpyrrolidone k90 in China. Please rest assured to wholesale high quality polyvinylpyrrolidone k90 made in China here from our factory. If you have any enquiry about free sample, please feel free to email us.
Product Description:
This product is obtained by polymerizing pyrrolidone and ethylene to generate vinyl pyrrolidone monomer under pressure and polymerizing it under the action of a catalyst. The homopolymer of 1-vinyl-2-pyrrolidone has an average molecular weight of 3.8X104 and the molecular formula is (C6H9NO)n, where n represents the average number of 1-vinyl-2-pyrrolidone chains.
Basic Info:
Product name: polyvinylpyrrolidone k90
Chemical Name: 1-vinyl-2-pyrrolidone homopolymer
CTFA name: POLYVINYLPYRROLIDONE
CAS No.: 9003-39-8
Molecular formula: (C6H9NO)n
Odour: Odorless or slight odor
Appearance: white powder or colorless transparent liquid
Color: White or light yellow powder
Packing: 25kg/ cardboard drum
Origin: China
Solubility:
Polyvinylpyrrolidone k90 is a water-soluble polymer, which is not only miscible with water, but also soluble in many alcohols, carboxylic acids, amines, and other organic solvents.
Film-forming properties:
Polyvinylpyrrolidone k90has very good film-forming properties. PVP can be cast or coated to form a film when dissolved in some solvents such as water, methanol, ethanol, etc.).
Application:
Pharmaceutical grade polyvinylpyrrolidone k90 product index k-90, K value 81-97, residual single%≤0.1 moisture%≤5.0 ignition residue%≤0.1, PH value (5% aqueous solution) 3-7 N % 11.5-12.8 Aldehydes (calculated as acetaldehyde)% ≤0.05 Heavy metals (calculated as lead PPM) ≤10 swelling (PPM) ≤1 peroxide% (H2O2) ≤400 Technical Grade PVP-K90 Items k-90 (aq. ) K value 90-103 Residual single% ≤ 0.2 Moisture%-ignition residue% ≤ 0.1 PH value (5% aqueous solution) 5-9 Solid content% 20±1
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