Sodium Hydroxide pellets (Reag. USP) for analysis, ACS, ISO

Sodium Hydroxide pellets (Reag. USP) for analysis, ACS, ISO
Content: 25 KGM
Physical Description:
solid
White solid as lentils or flakes, frosted, caustic deliquescent, absorbing CO2 from the air
Quality Name: for analysis, ACS, ISO
Specification: Minimum assay (Acidim.): 98.0%

?maximum limit of impurities:
Insoluble matter in H2O: 0.005 %
Chloride (Cl): 0.005%
Nitrogen compounds (as N): 0.0005%
Phosphate (PO4): 0.0005 %
Sulfate (SO4): 0.003%
Silicate SiO2: 0.001%
Carbonate (as Na2CO3): 1.0%
Heavy metals (as Pb): 0.0005%
Al: 0.0005 %
As: 0.00004 %
Ca: 0.0005 %
Cd: 0.0005 %
Co: 0.0005 %
Cu: 0.0005 %
Fe: 0.0005 %
Hg: 0.00001 %
K: 0.02 %
Mg: 0.0005 %
Mn: 0.0005 %
Ni: 0.0005 %
Pb: 0.0005 %
Zn: 0.001 %