... °C.Easily soluble in water (1g/2.8ml), PH=7.0. Soluble in glycerine, slightly soluble in ethanol.5.Quality standard ... base of dry basis),%≥99.0Arsenic (As),%≤0.0003Heavy metal(As Pb),%≤0.0005Loss on drying,% ≤1.0PH Value,%:NormalChlorides I or Br ...