chromium ore, also known as chromite, is also used in the refractory and metallurgical industries. Its resistance to fire of up to 1900 °C, good gas permeability and low thermal expansion combined with good thermal conductivity make this raw material an effective barrier to molten metal compared to other moulding sands. Furthermore, in contrast to

chromite powder, chrome flour 325, and chromite flour, it is an inorganic compound  used as a pigment Its chemical composition is Cr2O3. Chromite is the sole naturally occurring ore of chromium, occurs with iron oxide, and It has a melting point of 2,040 °C. It is referred to as being “almost chemically inert”(1), lending itself

Technical Data Sheet of Foundry Chromite sand:  CHEMICAL COMPOSITION Cr2O3 ≥46.0% SiO2 ≤1.0% FeO ≤26.5% CaO ≤0.3% MgO ≤10% AL2O3 ≤15.5% P ≤0.003% S ≤0.003% Cr/Fe 1.55:1 TYPICAL PHYSICAL PROPERTIES Hardness: Mohs:5.5-6 Melting Point: Sublimes at 2180 ℃ Sintering point: >1800℃ The sintered 1600℃ Specific Gravity: 4.0-4.8 g/cm3 Bulk density(LPD): 2.5-3 g/cm3 Color: Black PH 7-9

Chromite is composed of chromium, iron and oxygen (chemical formula FeCr2O4). It is an oxide mineral belonging to the spinel group.  chromite sand is used in the foundry industry as a moulding sand, as a pigment in ceramic glazes and container glass, and as an additive in brake lining applications.  CHEMICAL COMPOSITION Cr2O3 ≥46.0% SiO2 ≤1.0% FeO ≤26.5% CaO ≤0.3%

 CHEMICAL COMPOSITION Cr2O3 ≥46.0% SiO2 ≤1.0% FeO ≤26.5% CaO ≤0.3% MgO ≤10% AL2O3 ≤15.5% P ≤0.003% S ≤0.003% Cr/Fe 1.55:1 TYPICAL PHYSICAL PROPERTIES Hardness: Mohs:5.5-6 Melting Point: Sublimes at 2180 ℃ Sintering point: >1800℃ The sintered 1600℃ Specific Gravity: 4.0-4.8 g/cm3 Bulk density(LPD): 2.5-3 g/cm3 Color: Black PH 7-9 Percentage of free acid present in the

Chromite sand is a naturally occurring spinel consisting primarily of the oxides of chrome and iron. It is a by-product of ferro-chrome production and is mainly used in foundry applications and in glass production. Technical Data Sheet of Foundry Chromite sand:  CHEMICAL COMPOSITION Cr2O3 ≥46.0% SiO2 ≤1.0% FeO ≤26.5% CaO ≤0.3% MgO ≤10% AL2O3 ≤15.5% P