Product Main

Specifications

Formula:    Cr2O3
Molecular Weight: 151.99
It is cubic crystal system or amorphous powder, olive green, which has metallic lustre. Its gravity is 5.21, melting point is 2,266±25℃ and boiling point is 4,000℃. It can not dissolve in water and acidic solution, but can dissolve in the solution of alkali metallic bromate. It is very stable to light, atmosphere, high temperature and corrosive gas (SO2, H2S etc.) It has high covering power and magnetism.
 
Used in smelting chromium and chromous carbide and in fields of enamelling, grinding, polish, paint, printing ink and so on.
 Pigment Grade
   Metallurgical Grade
  Index Name
 Index
  Index Name
   Index
   E.G.
    F.G.
 as Cr2O3%≥
   99.00
 99.00
  Cr2O3
   ≥98.5
  Color
To be similar or base on user’s needs
  Fe2O3
   <0.030
 Coloring Power ≥
 95.00
  95.00
     P
   <0.001
 Oil Absorption %≤
 25.00
  25.00
     Co
   <0.001
 Hiding Power g/m2 ≤
 15.00
  15.00
     Mn
   <0.001
 Remnant (320mesh)%≤
 0.50
  0.50
     Cu
   <0.001
 Moisture%≤
 0.30
  0.50
     Ni
   <0.001
 Water-Soluble Cr2O3%≤
as Cr+6 5PPM
  0.10
     Pb
   <0.001
Water-Solubles%≤
 0.30
  0.30