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Magnesium Sulfate  
  Ferrous Sulfate
Calcined Magnesite  
  Zinc Sulfate
Aluminum Sulfate  

 

 

 

MAGNESIUM SULFATE HEPTAHYDRATE
(EPSOM SALT)

Chemical Formula   :

MgSO4.7H2O
99 PCT

 

MgSO4.7H20   99.7%
Ca   0.0022 %
Cl   0.0077 %
Fe   < 1 ppm
Pb   < 3 ppm
As   < 2 ppm
Insolubles in Water   0.000 %
Acidity   0.000 %
pH   7

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CALCINED MAGNESITE
(MAGNESIUM OXIDE)


Chemical Formula   : MgO

 

MgO   90.0 % min.
CaO   3.0 % max.
SiO2   1.5 % max.
Fe2O3-Al2O3   1.0 % max.
L.O.I.   4.0 % max

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FERROUS SULFATE

 

Chemical Formula   :   FeSO4.7H20

 

FeSO4.7H2O

  97 % min.

FeSO4

  53 % min.

Free Sulphiric Acid   2  % min.
Insolubles in Water   0.1 % max.
Fe3   trace
As   trace
pH    
(in a solution of 5%)
  2-2.5
Physical form   crystalline
Color   very light bluish green

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ZINC SULFATE

 

Chemical Formula   :    ZnSO4.7H20

 

ZnSO4.7H20   99.58 %
Fe   0.11   %
Al   0.001 %
Mn   0.001 %
Pb   0.001 %
Insolubles in Water   0.000 %
pH   4.5
Humidity   3 %
  (only for humid material)

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ALUMINUM SULFATE

 

Chemical Formula Al2(SO4)3.18H2O

 

Al2O3   17 %
Fe   0.02 %
SO3   40 %
H2O   27 %
Insolubles in Water   0.5 %
pH   2.5

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