Chemistry Question #1395
Jefrey, a 38 year old male from KL asks on April 16, 2003,
What is the purpose of polyvinylpyrrolidone in the making of hard capsule gelatin. What is the grade/spec used and where is it derive from? Who is the manufacturer and what is the market rate of this chemical?
viewed 15508 times
answered on April 16, 2003
Polyvinylpyrrolidone is a vinyl polymer that is soluble in water. It is also inert and not absorbed by the body. This is probably why it is used in the making of hard capsules. You can find out more at the link from The School of Polymers and High Performance Materials at the University of Southern Mississippi. For grades and specs and prices, go to www.google.com and do a search. You will find many manufacturers. Polyvinylpyrrolidone is made by joining lots of vinylpyrrlolidone molecules together into a long chain. This is also explained at the link above.
Add to or comment on this answer using the form below.
Note: All submissions are moderated prior to posting.
If you found this answer useful, please consider making a small donation to science.ca.