4.012929Sodium dihydrogen phosphate dihydratefor HPLCNaH2PO4&＃8226;2H2O M.=156.02CAS No. 13472-35-0
Guarantee analysisAssay (Acidim.)≥ 99.0% pH of 5% solution 4.2 ~ 4.5Chloride (Cl) ≤ 0.005 %Sulfate (SO4) ≤ 0.01 %
UV absorption(10% in H2O)λ 210 nm max 0.10λ 260 nm max 0.06λ 280 nm max 0.04λ 320 nm max 0.02λ 500 nm max 0.02
suitability for RP gradient test complyingsuitability for filter test complying