Sylffad Ferric
Manylebau
Eitem | Safonol |
Ymddangosiad | Powdr melyn |
Fe3+ | ≥21.5% |
Mater llai (fel Fe2+) | ≤0.1% |
Asid rhydd (fel H2SO4) | ≤0.5% |
Deunydd anhydawdd | ≤0.3% |
Pb | ≤8ppm |
As | ≤2ppm |
Hg | ≤0.1ppm |
Cr | ≤5ppm |
Cd | ≤2ppm |
Ysgrifennwch eich neges yma a'i hanfon atom