| ≥1 piece |
|
Parameters
|
Specification
|
|
Appearance
|
Colorless crystals or white crystalline powder
|
|
Assay
|
99,0-101,0%
|
|
Water
|
≤ 0.5%
|
|
Melting range
|
132-135
|
|
Residue on ignition
|
≤ 0.2%
|
|
Aldehyde (as Formaldehyde)
|
≤ 0,1%
|
|
Lead (Pb)
|
≤ 5 mg/kg
|
|
Arsenic(as As)
|
≤ 3 mg/kg
|
|
mercury (Hg)
|
≤ 1 mg/kg
|
|
Heavy metals (as Pb)
|
≤ 10 mg/kg
|
|
The goods conform to FCC IV /E200 edition
|
|