EDTA, EDTA-2Na,China price supplier

EDTA(Ethylenediaminetetraacetic acid):
Appearance: White powder,
Mian content: 99.0% min,
Chloride: 0.05% max,
Sulphate: 0.05% max,
Fe: 0.001% max,
Heavy metals(as Pb): 0.001% max,

EDTA-2Na:
Appearance: White powder,
Mian content: 99.0% min,
pH value(25DEG, 5% water olution): 4~5,
Chloride: 0.04% max,
Fe: 0.004% max,
Heavy metals(as Pb): 0.004% max,

EDTA-4Na:
Appearance: White powder,
Mian content: 99.0% min,
CaCO3. Mg/g)230± 15,
pH value(25DEG): 11.2~11.7,
Chloride: Pass test,
Fe: 0.01% max,