GREMONT CHEMICAL COMPANY LIMITED
Ferrous Sulphate
Mono / Heptahydrate,Iron(II) sulfate,7H2O
 
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PROPERTIES   &  USAGE
Properties   Usage
Chemical formula FeSO4 Colorant
Density 3.65 g/cm3 (anhydrous) Other uses
  3 g/cm3 (monohydrate)  treating iron chlorosis
  2.15 g/cm3 (pentahydrate) photographic developer for collodion process images
  1.934 g/cm3 (hexahydrate)  
  1.895 g/cm3 (heptahydrate  
Melting point 680 °C (1,256 °F; 953 K)  
  (anhydrous) decomposes  
  300 °C (572 °F; 573 K)(monohydrate) decomposes  
  60–64 °C (140–147 °F; 333–337 K)  
  (heptahydrate) decomposes  
 
SPECIFICATION     
Specification Unit : HEPTAHYDRATE Monohydrate USP Grade 
Purity,  % min : 99.7 30%Min  
Fe,  % min : 20 0.0002%Max  
Sulfur (S),  % min : 11.5    
Lead (Pb)  ppm, max : < 10 0.002%Max.  < 10ppm 
Appearance   :     Greyish White color Powder
Cd   :      
As   :     < 3ppm
PH(5 %SOL)   :      
Identification: Test A   :     Passes to U.S.P. test 
                        Test B   :     Passes to U.S.P. test 
Heavy Metals   :      
Ferric Iron   :      
Assay on dry basis   :     86% - 90% 
Org. Vol. Imps.   :     Limit to pass the test 
Mercury   :     < 3ppm 
 
NAMES
 
硫酸第一鉄
Ryūsandaiichitetsu
Sulfato de hierro sắt Sulphate লৌহঘটিত সালফেট
Lauhaghaṭita sālaphēṭa
황산염 sulfate ferreux ferrous sulpit เหล็ก ซัลเฟต
H̄el̆k sạlfet
сульфат Eisensulfat ferrous Sulphate كبريتات الحديدوز
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