
Molecular formula: (COOH)2·2H20
Molecular weight: 126
CAS No.: 144-62-7
Property:White crystal & powder, free floating.
Usage:
1.Electronic industry: to make electronic materials, to clean integrate circuit board.
2.Metallurgy industry: as precipitating and resolving agent for rare earth metal, etc.
3.Others: as laboratory agent, solvents, activator and basic materials for chemical industry.
Packing:Net in 25KG pp bag/kraft paper bag, jumbo bag.
Specification:
99.6% Min |
99.6% Min |
99.6% Min |
|
Sulphate (SO42-) |
20ppm Max |
50ppm Max |
100ppm Max |
Chloride (Cl-) |
5ppm Max |
1ppm Max |
1ppm Max |
Heavy Metals (Pb2+) |
5ppm Max |
5ppm Max |
5ppm Max |
Ferrous (Fe3+) |
5ppm Max |
1ppm Max |
1ppm Max |
Sio |
- |
10ppm Max |
10ppm Max |
Ca |
2ppm Max |
2ppm Max |
2ppm Max |
Mg |
1ppm Max |
5ppm Max |
5ppm Max |
Cu |
2ppm Max |
2ppm Max |
2ppm Max |
Zn |
2ppm Max |
2ppm Max |
2ppm Max |
Ni |
2ppm Max |
2ppm Max |
2ppm Max |
Ignition Residue (850ºC) |
0.02% Max |
0.05% Max |
0.02% Max |