Dark blue crystal, The melting point is 115 ¡æ, when heats up to 240 ¡æ, it loses the crystal water, dissolves in the water and ethyl alcohol, slightly soluble in ether and glycerine.
Item
Reagent Grade
Technical Grade
Content %
¡Ý 98.0
Sulfate (SO4)%
¡Ü 0.02
¡Ü 0. 1
Sulfureted hydrogen non-precipitated substances(as Sulfate) %
¡Ü 0.3
Water Insolubles %
¡Ü 0.05
¡Ü 0.2
Plumbum (Pb) %
¡Ü 0.005
¡ª
Ferrum (Fe)%
Chloride(Cl) %
¡Ü 0.1
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