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    Magnesium Sulfate (MgSO4 .nH2O n=0-7)
    Magnesium sulfate heptahydrate
    Molecular Formula MgSO4.7H2O
    Molecular Weight 246.47
    CAS

    7487-88-9
    Specification
     
    Magnesium sulfate heptahydrate (Agriculture grade):
    Appearance
    White small granular
    Main content
    99.5% min
    MgSO4
    48.59% min
    MgO
    16.24% min
    Mg
    9.8% min
    PH(5W/V%Sol)
    5-9
    Ferron(Fe)
    0.002% max
    Chloride(CL)

    0.02%
    Heavy metal (Pb)
    0.001 %max
    Arsenic(As)
    0.0002% max
    Insoluble
    0.01%max
    Size (mm)
    0.1-1 0.2-3 1-4
    Magnesium sulfate heptahydrate (Technical Grade):
    Appearance
    White small granular
    Main content
    99.5% min
    MgSO4
    48.59% min
    MgO
    16.24% min
    Mg
    9.8% min
    PH(5W/V%Sol)
    5-9
    Ferron(Fe)
    0.0015% max
    Chloride(Cl)

    0.015%max
    Heavy metal (Pb)
    0.0008 %max
    Arsenic(As)
    0.0002% max
    Insoluble
    0.01%max
    Size (mm)
    0.1-1 0.2-3 1-4
    Magnesium sulfate heptahydrate (USP.BP.CP):
    Appearance
    White Crystalline
    Main content
    99.5% min
    MgSO4
    48.59% min
    MgO
    16.24% min
    Mg
    9.8% min
    PH(5W/V%Sol)
    5-9
    Ferron(Fe)
    0.001% max
    Chloride(Cl)

    0.014%max
    Heavy metal (Pb)
    0.0006%max
    Arsenic(As)
    0.0002% max
    Insoluble
    0.001%max
    Size (mm)
    0.1-1 0.2-3 1-4

    Magnesium sulfate heptahydrate (Food Grade):
    Appearance
    White cylinder crystalline
    Main content
    99.5% min
    MgSO4
    48.59% min
    MgO
    16.24% min
    Mg
    9.8% min
    PH(5W/V%Sol)
    5-9
    Ferron(Fe)
    0.001% max
    Heavy metal
    0.0006%max
    Lead(Pb)

    0.0001%
    Arsenic(As)
    0.0001% max
    Insoluble
    0.001%max
    Size (mm)
    0.1-1  0.2-3  1-4

    Magnesium sulfate pentahydrate

    Appearance
    White powder
    Main content
    99% min
    MgSO4
    56% min
    MgO
    19% min
    Mg
    11.31% min
    Chloride (Cl)
    0.014%max
    Ferron(Fe)
    0.0015% max
    Heavy metal (Pb)
    0.0006 %max
    Arsenic(As)
    0.0002% max
    Insoluble
    0.1%max

    Magnesium sulfate trihydrate

    Appearance
    White powder
    Main content
    99% min
    MgSO4
    68% min
    MgO
    22.75% min
    Mg
    13.65% min
    Chloride (Cl)
    0.014%
    Ferron(Fe)
    0.0015% max
    Heavy metal (Pb)
    0.0007 %max
    Arsenic(As)
    0.0002% max
    Insoluble
    0.1%max

    Magnesium sulfate monohydrate
    Appearance
    White powder
    Main content
    99% min
    MgSO4
    86% min
    MgO
    28.69% min
    Mg
    17.21% min
    Ferron(Fe)
    0.0015% max
    Chlorid(Cl)
    0.014% max
    Heavy metal (Pb)
    0.0008 %max
    Arsenic(As)
    0.0002% max
    Insoluble
    0.1%
     

    Magnesium sulfate anhydrate
    Appearance
    White powder
    MgSO4
    98% min
    MgO
    32.66% min
    Mg
    19.6% min
    Ferron(Fe)
    0.0015% max
    Chloride(Cl) 0.014%max
    Heavy metal (Pb)
    0.0008 %max
    Arsenic(As)
    0.0002% max
    Insoluble
    0.1%