Item

Standard

Appearance:

orange red or deep red powder; odorless, slightly bitter.

Acidity:

4.0-7.0

Loss on drying:

≤ 5%

Residue on ignition:

≤ 0.2%

Heavy metal:

≤ 20PPM

Relative material:

≤ 2.0%

Content:

≥ 98.0% (base on dry)