di-Ammonium Hydrogen Phosphate (Reag. Ph. Eur.) for analysis, ACS

di-Ammonium Hydrogen Phosphate (Reag. Ph. Eur.) for analysis, ACS
Content: 25 KGM
Physical Description:
solid
Quality Name: for analysis, ACS
Specification: Minimum assay (Acidim.): 99.0%
pH of 5% solution: 7.7-8.1

?maximum limit of impurities:
Insoluble matter in H2O: 0.005 %
Chloride (Cl): 0.0005%
Sulfur compounds (as SO4): 0.004 %
Nitrate (NO3): 0.003%
Heavy metals (as Pb): 0.001%
As: 0.0001 %
Ca: 0.001 %
Cu: 0.001 %
Fe: 0.001 %
K: 0.005 %
Mg: 0.0005 %
Na: 0.005 %
Ni: 0.001 %
Pb: 0.001 %