Molar degree of substitution(M.S)

1.8-2.0

Moisture content(%)

≤10

Water insoluble matter(%)

≤0.5

PH

6.0-8.5

Heavy metal(ug/g)

≤20

Ash(%)

≤1

Viscosity(mpa.s)2%20℃aqueous solution

30000-50000

Lead content(%)

≤0.001