CHROME FLOUR FOR CERAMIC
SIZES:200MESH 325MESH 400MESH
Chrome flour is a naturally occuring spinel consisting primarily of the oxides of chrome and iron.When ground to a fine powder, used for the production of green glass beverage containers,ceramic glaze etc.
PHYSICAL AND CHEMICAL INDEX
| Item | Unit | Index |
| Cr2O3 | % | ≥46.0% |
| SiO2 | % | ≤1.0% |
| FeO | % | ≤26.5% |
| CaO | % | ≤0.30% |
| MgO | % | ≤10.0% |
| Al2O3 | % | ≤15.5% |
| P | % | ≤0.003% |
| S | % | ≤0.003% |
| Cr/Fe | 1.55:1 | |
| Bulk Density | g/cm³ | 2.5-3 |
| Color | / | Black |
| PH | / | 7-9 |
| The amount of the acid | / | ≤ 2 ML |
| Percent soil | % | ≤0.1 |
| Percent Moisture | % | ≤0.1 |
| The sintered | ℃ | 1600 |
| Percentage of free acid present in the sand | % | 0 |
| filling density | g/cm³ | 2.6 |
| sintering point | °C | > 1,800 |
| melting temperature | °C | 2,180 |
PSD(Partilce Size Distribution)
| Item | Size | Passing% | Remarks |
| Chrome flour | 200mesh/-75um | ≥95% | Can be customized as required |
| Chrome flour | 325mesh/-45um | ≥95% | Can be customized as required |
| Chrome flour | 400mesh/-38um | ≥95% | Can be customized as required |
Similarly, chrome flour can offer the same benefits to the ceramics industry and create grey bodies. It’s also of use in the creation of glazes for use on the ceramics, with such glazes tending to be green in colouration, following a similar principle as when chrome flour is used as a pigment in glass. Black pigments, for example, are easily attainable with chromite – being resistant to firing at temperatures in excess of 1,200 °C whilst causing no defects(12). Chromite is reliable as a pigment for ceramic glazes up to around the 25% by weight mark. Studies have shown that the inclusion of mineral chromite as a ceramic glaze has impacts on crystallisation (i.e. the formation of the glaze, by way of modulating the kinetics of the reactions) and on machinability (which can additionally be thought of as improving durability)(13). The study suggested that chromite, in terms of crystallisation ability, acted as a source of iron oxide, with the activation energy for crystallisation reducing with a greater chromite content despite the material’s exceptionally high melting point. The use of chromite therefore has potential as a glaze to improve the quality of low-end ceramics.
PACKING
1MT big bag
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| Inner strong bags | 1mt big bag |
AVAILABLE SIZES
AFS 25-35 AFS25-30 AFS30-35 AFS35-40 AFS40-45 AFS40-50 AFS45-55 AFS45-50 AFS50-55 AFS55-60 AFS60-65 0-1mm 200mesh 325mesh 400mesh
