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PVP K90 (Flake)

Chemical Description

◆ Product Name: Povidone K90 Flake

◆ CAS No.: 9003-39-8

◆ INCI Name: Polyvinylpyrrolidone K90 Flake (abbr. PVP K90 Flake)

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

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Application of PVP K90 Flake

◆ Cosmetics Industry

PVP K90 Flake can form a transparent, hard, and shiny film. It is used as an ingredient in styling products such as hair spray, mousse, and gel.
PVP K90 Flake can also be used in lubrication and moisturizing in lotions and sunscreens, and to form a film in facial masks.

◆ Glue Industry
PVP K90 Flake 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 Flake can control membrane pore size and distribution, increase membrane pore density, and is used in water treatment membranes.

◆ Natural Gas Extraction
PVP K90 Flake is an efficient natural gas hydrate inhibitor. Adding 1-2% of K90 can inhibit the formation of hydrates for nearly 20 hours.

Specification of PVP K90 FLake

Item			Specification
Partical Size			80% Pass 20 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

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