Appearance

colorless crystal

Assay:

≥99%

PH( 50g/L solution,20deg.C)=

4.0-6.5

insolubles in water:

0.005%

Sulphate:

≤0.01%

N:

≤0.002%

Na:

≤0.005%

Fe:

≤0.0002%

Ca:

≤0.01%

Cu:

≤0.002%

Zn:

≤0.002%

Pb:

≤0.01%

Clarity

Measure up