Sodium Carboxymethyl Cellulose(CMC)

ITEM

STANDARD

RESULT

Appearance

White or yellowish powder

White or yellowish powder

Viscosity(1%solu.s)mPa.s

7000-8000

7900

Degree of substitution

0.7-0.9

0.78

PH of 1% solution(25°C）

6.5～8.5

7.1

Moisture(%)

≤10.0

6.2

Purity,%

≥99.5

99.61

Heavy metal(Pb),ppm

≤10

<10

Iron(Fe),ppm

≤2

<2

Arsenic(As),ppm

≤3

<3

Lead(Pb),ppm

≤2

<2

Mercury,ppm

≤1

<1

Cadmium,ppm

≤1

<1