Sodium Tartrate 2-hydrate (Reag. Ph. Eur.) for analysis

Sodium Tartrate 2-hydrate (Reag. Ph. Eur.) for analysis
Content: 25 KGM
Physical Description:
solid
Quality Name: for analysis
Specification: Assay (Perchl. Ac.): 99.0-101.0%
pH of 5% solution: 7.0-9.0

?maximum limit of impurities:
Insoluble matter in H2O: 0.005 %
Chloride (Cl): 0.0005%
Ammonium (NH4): 0.003%
Phosphate (PO4): 0.0005 %
Sulfate (SO4): 0.002%
Heavy metals (as Pb): 0.0005%
As: 0.00005 %
Ca: 0.005 %
Cu: 0.0005 %
Fe: 0.0005 %
K: 0.002 %
Ni: 0.0005 %
Pb: 0.0005 %