4.019966di-Potassium hydrogen phosphatefor HPLCK2HPO4 M.=174.18 CAS No. 7758-11-4Guarantee analysisAssay (acidimetric) ≥ 99.0 %pH value (10% in H2O, 20°C) 8.7 ~ 9.3Chloride (Cl) ≤ 0.003 %Sulfate (SO4) ≤ 0.005 %UV absorption(10% in H2O)λ 230 nm max 0.1λ 240 nm max 0.09λ 250 nm max 0.08λ 310 nm max 0.03λ 500 nm max 0.02suitability for RP gradient test complyingsuitability for filter test complying
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