Product Description
Ammonium dihydrogen phosphate for analysis ENSURE ACS, packing: 500 gram Replaces AX1350; AX1350-1; AX1350-20 Synonyms Ammonium biphosphate, Ammonium phosphate monobasic, Primary ammonium phosphate, Monoammonium orthophosphate Specifications: Assay (acidimetric) 99.0 % Insoluble matter 0.005 % pH-value (5 %; water, 25 C) 3.8 – 4.4 pH-value (2.3%; water) about 4.2 Chloride (Cl) 0.0005 % Nitrate (NO) 0.001 % Sulphate (SO) 0.005 % Heavy metals (as Pb) 0.0005 % Ca (Calcium) 0.001 % Fe (Iron) 0.001 % K (Potassium) 0.005 % Mg (Magnesium) 0.0005 % Na (Sodium) 0.005 %