di-Sodium Hydrogen Phosphate 12-hydrate for analysis, ISO

di-Sodium Hydrogen Phosphate 12-hydrate for analysis, ISO
Content: 25 KGM
Physical Description:
solid
Quality Name: for analysis, ISO
Specification: Assay (Acidim.): 99-102 %
pH of 5% solution: 9-9.4

?maximum limit of impurities:
Insoluble matter in H2O: 0.005 %
Chloride (Cl): 0.0005%
Nitrogen compounds (as N): 0.001%
Sulfate (SO4): 0.005%
Mono or tri-Base salt: passes test
Heavy metals (as Pb): 0.0005%
As: 0.00005 %
Ca: 0.001 %
Cd: 0.0005 %
Co: 0.0005 %
Cr: 0.0005 %
Cu: 0.0005 %
Fe: 0.0005 %
K: 0.01 %
Mg: 0.001 %
Mn: 0.0005 %
Ni: 0.0005 %
Pb: 0.0005 %
Zn: 0.0005 %