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1,4-DIOXANE FOR ANALYSIS EMSURE 250 ML
Rp 1.347.000
2-Morpholinoethanesulfonic acid monohydrate buffer substance MES. CAS 145224-94-8, pH 3.6 (10 g/l, H₂O, 20 °C).
Assay (alcalimetric, calculated on anhydrous substance)≥ 99 %Identity (IR-spectrum)passes testUV-Absorption (250 nm, 50 g/l, 1 cm, water)≤ 0.05Chloride (Cl)≤ 0.005 %Sulphate (SO₄)≤ 0.005 %Heavy metals (as Pb)≤ 0.0005 %Na (Sodium)≤ 0.005 %Water (according to Karl Fischer)7.0 - 9.0 %Biological buffer, pKa at 20 °C6.15
