Chemical Description
◆ Product Name: Povidone K90 Fine Powder
◆ CAS No.: 9003-39-8
◆ INCI Name: Polyvinylpyrrolidone K90 Fine Powder (abbr. PVP K90 Fine Powder)
Physical and Chemical Properties
◆ White or yellowish-white, hygroscopic powder or flakes
◆ Freely soluble in water, in ethanol (96 percent), and in methanol; very slightly soluble in acetone
◆ Cosmetics Industry
PVP K90 Fine Powder can be used to form a transparent, hard, and shiny film. It is an ingredient in styling products such as hair spray, mousse, and gel.
PVP K90 Fine Powder can also be used in lubrication and moisturizing in lotions and sunscreens, and to form a film in facial masks.
◆ Glue Industry
PVP K90 Fine Powder has strong bonding ability, good initial adhesion, and excellent coating performance. It provides a thin and uniform coating and is used in the solid glue industry.
◆ Water Treatment Industry
As a pore-forming agent, PVP K90 Fine Powder can control membrane pore size and distribution, increase membrane pore density, and is used in water treatment membranes.
◆ Natural Gas Extraction
PVP K90 Fine Powder is an efficient natural gas hydrate inhibitor. Adding 1-2% of K90 can inhibit the formation of hydrates for nearly 20 hours.
Item | Specification | |||||
Partical Size | 100% Pass 20 Mesh 50% Pass 40 Mesh | |||||
Apperance | White or yellowish-white, hygroscopic powder or flakes | |||||
PH | 4.0-7.0 | |||||
K value | 81-97.2 | |||||
Aldehydes | NMT 0.05% | |||||
Hydrazine | NMT 1.0PPM | |||||
Impurity A | NMT 0.1% | |||||
Water | NMT 5.0% | |||||
Sulfated ash | NMT 0.1% | |||||
Nitrogen | 11.5%-12.8% | |||||
Heavy Metal | NMT 10PPM |