tri-Sodium Citrate 2-hydrate (Reag. USP) for analysis, ACS

tri-Sodium Citrate 2-hydrate (Reag. USP) for analysis, ACS
Content: 25 KGM
Physical Description:
solid
Quality Name: for analysis, ACS
Specification: Minimum assay (Perchl. Ac.): 99.0%
Identity: passes test
pH of 5% solution: 7.5-9.0

?maximum limit of impurities:
Insoluble matter in H2O: 0.003 %
Darkened substances by H2SO4: passes test
Reducing substances: passes test
Chloride (Cl): 0.003%
Ammonium (NH4): 0.001%
Sulfate (SO4): 0.005%
Oxalate (C2O4): 0.01%
Heavy Metals (ICP-OES): 0.0005 %
Water: 11.0 - 13.0 %
As: 0.00004 %
Ca: 0.005 %
Cu: 0.0005 %
Fe: 0.0005 %
K: 0.01 %
Ni: 0.0005 %
Pb: 0.0005 %