Testing Item

 Standard

Result

Purity/%

≥95

95~99

Moisture/%

≤0.8

0.3

Water Insolubles/%

≤0.7

0.2

Lgnition Loss/%

1~4

2

HCL Insolubles/%

≤0.04

0.03

Heavy Metal (Pb)/%

≤0.0030

0.0007

Mercury(Hg)/%

≤0.0030

Not detected

Ferrum (Fe)/%

≤0.0030

0.0011

Chloride(Cl)/%

≤0.30

0.11

Arsenic (As)/%

≤0.0030

0.0003

Cadmium(Cd)/%

≤0.0040

0.0003

Copper (Cu)/%

≤0.0008

0.0002

Manganese(Mn)/%

≤0.0008

0.0002

Size(powder pass 0.1mm test sieve)/%

≥95

conforms

Specific Area/(m/g)

≥45

conforms

Bulk Density/(g/ml)

≤0.35

conforms

Note: When a user with special requirements for fineness, negotiated by the supply and demand sides