Item

Standard (%)

Result (%)

Appearance

White Powder

White Powder

Main Content (MgSO4)

≥98

98.5

MgO

≥32.8

32.9

Mg

≥19.8

19.86

Fe

≤0.0030

0.0015

Cl

≤0. 03

0.014

Pb

≤0.002

0.0008

Water Insoluble

≤0.10

0.01

PH Value (50g/L)

5.0-9.5

8.5

Loss On Ignition

≤1.8

0.5