Polyvinylpyrrolidone (PVP), also commonly called polyvidone or povidone, is a water-soluble polymer made from the monomer N-vinylpyrrolidone
It is used as a binder in many pharmaceutical tablets. Used as a thickening agent in tooth whitening gels. As a food additive, PVP is a stabilizer and has E number E1201. is also used in the wine industry as a fining agent for white wine and some beers.
Product Name: Povidone
CAS No.: 9003-39-8
|Characters||It occurs as a white to slightly creamy white powder, hygroscopic.|
a. Infrared Absorption
b. Specified test. An orange-yellow precipitate is formed
c. Specified test. A pale blue precipitate is formed
d. Specified test. A deep red color is produced
e. Specified test. The substance dissolves
|Solubility||Freely soluble in water, in methanol, and in alcohol; slightly soluble in acetone; practically insoluble in ether|
|Residue on Ignition||Not more than 0.1%|
|Lead||Not more than 10 ppm|
|Limit of Aldehydes||
|Limit of Hydrazine||Not more than 1 ppm of hydrazine.|
|Vinylpyrrolidinone||Not more than 0.001%|
|2-Pyrrolidone||Not more than 3.0%|
|Peroxides||Not more than 0.35, corresponding to not more than 400 ppm, expressed as H2O2|
|Formic acid||Not more than 0.5%|
|pH||3.0–5.0 for Povidone having a nominal K-value of 30 or less|
|Water||Not more than 5.0 %|
|K-Value||K-value of Povidone having a stated K-value or a stated K-value range with an average of more than 15:
90.0%–108.0% of the stated value or of the average of the stated range
|Residual solvents||Meets the requirements|
|Assay (Nitrogen Determination Method)||Not less than 11.5% and not more than 12.8% on the anhydrous basis|
Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.
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We observe WHO Good manufacturing practice and Good laboratory practice.