homopolymer of vinylpyrrolidone /Pvp k90 polyvinylpyrrolidone crystal powder pvp
The specification of Vinylpyrrolidone / PVP-A / PVP VA Copolymer Series CAS 25086-89-9
Product name :Vinylpyrrolidone / PVP-A / PVP VA
CAS 25086-89-9
Molecular formula : (C6H9NO)n(C4H6O2)m
The COA of Vinylpyrrolidone / PVP-A / PVP VA Copolymer Series CAS 25086-89-9
Characteristics
-- A white powder, and clear and colorless to slightly yellowish solutions with faint odor;
--Soluble in water and many organic solvents;
Specification
Items |
K-value |
Solid,% |
Water,% |
pH |
VP+VAC,% |
|
PVP /VA64,Powder |
26-34 |
≥95 |
≤5 |
4-7 |
≤0.1 |
|
PVP /VA64 E |
30-36 |
48-52 |
≤0.5 |
-- |
≤0.1 |
|
PVP /VA64 W |
26-34 |
48-52 |
Approx.50 |
5-7 |
≤0.1 |
|
PVP /VA55 I |
22-28 |
48-52 |
≤0.5 |
-- |
≤0.1 |
|
PVP /VA55 E |
30-36 |
48-52 |
≤0.5 |
-- |
≤0.1 |
|
PVP /VA37 E |
28-36 |
48-52 |
≤0.5 |
-- |
≤0.1 |
|
PVP /VA37 I |
25-31 |
48-52 |
≤0.5 |
-- |
≤0.1 |
|
PVP /VA73 E |
28-38 |
48-52 |
≤0.5 |
-- |
≤0.1 |
|
PVP /VA73 W |
24-32 |
48-52 |
Approx.50 |
5-7 |
≤0.1 |
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