Product Details
Product description:
Polyvinylpyrrolidone pvp k30 is a white powder with slight odor and hygroscopicity. It is easy to absorb water, to ethanol, ethyl group and other organic solvents. Complex adsorption of multiple material worlds.
Basic Info
●Model NO.: povidone k30
●Mf: [C6H9NO]n
●Trademark: ULKM
●Origin: China
●CAS No.: 9003-39-8
●Package: 25kg /Cardboard Drum
●Specification: Bp/Ep/Usp
●HS Code: 39059900
●Boiling Point: ≥130
Application:
Polyvinylpyrrolidone pvp k30 is widly used in pharmaceutical field , and it is one of medicinal synthetic excipients, it can be used as a delaying agent, lubricant and coating film forming agent for eye drops.
Physical properties:
1.CharacteristicsFilm-forming and hygroscopicity:
Polyvinylpyrrolidone pvp k30 has strong hygroscopicity, its moisture absorption capacity is weaker than carboxymethyl cellulose (CMC), but stronger than polyvinyl alcohol (PVA). Once PVPK30 absorbs moisture, it will show a certain degree of adhesion. The equilibrium moisture content of PVPK30 is about 1/3 of the relative humidity.
2.Surface activity:
The molecule of Polyvinylpyrrolidone pvp k30 has a butyrolactam structure, which contains a large polar lactam group with a dipole moment of 40, which has the ability to be hydrophilic and polar group. In addition, there are non-polar methylene (-CH2-) and methine (CH=) groups on the molecular ring and in the long chain, making it lipophilic.
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