Povidone K15/17/25/30

White to milky white powder odorless or slightly stinky. It is easy to dissolve in water, methanol or ethanol, and is slightly soluble in acetone, insoluble in ether. It has good moisture absorption, film formability, complexity and physiological compatibility, and has the ability to compound with various organic and inorganic compounds. It is more stable in acid, salt and heat.

English Abbreviation: PVP K15/17/25/30
CAS No.: 9003-39-8

Category: Pharmaceutical Excipients

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PRODUCT DETAILS

Product Description

White to milky white powder, odorless or slightly stinky. It is easy to dissolve in water, methanol or ethanol, and is slightly soluble in acetone, insoluble in ether. It has good moisture absorption, film formability, complexity and physiological compatibility, and has the ability to compound with various organic and inorganic compounds. It is more stable in acid, salt and heat.

Quality Index

Viscosity (with K value):	K30	K15	K17	K25
	27.0-32.4	12.75-17.25	15.3-18.36	22.5-27.0
Stickly molecular weight:	45000-58000	8000-12000	10000-16000	30000-40000
PH (5% aquatic solution):	3.0-7.0
Aldehydes (with acetaldehyde):	≤500ppm
Peroxides (in H2O2):	≤400ppm
Formic acid：	≤0.5%
Hydrazine：	≤1ppm
3-Vinyl-2-pyrrolidinone ：	≤10ppm
2-pyrrolidone ：	≤3%
Water ：	≤5.0%
Sulfated ash：	≤0.1%
Nitrogen ：	11.5%-12.8%
Heavy metal (with lead):	≤10ppm

Main Functions

Diffengers, pores, solvents, stabilizers, solvents, crystalline inhibitors, etc.

Application

Pharmaceutical industry: the adhesives of tablets, granular agents, liquid preparations and duster dispersion, enzymes and thermal drug stabilizers, common precipitants of unsolvically soluble drugs, and film coats of pills, etc.;