Colemanite - Overview
Colemanite is enriched via crushing, wetting in water, washing in a thumbling, sieving, triage and classification. Colemanite forms at a lower pH and warmer temperature than other borates.
The Uses of Colemanite
Colemanite is a significant ore of boron and was the most important ore prior to the discovery of Kernita in 1926.
Non-sodium Fiberglass Industry
Colemanite is used in nonsodium fiberglass industry to make heat resistant glass
It is used as an ore of boron and as a source of borax (a cleaning agent and useful for industrial chemical)
Colemanite can be used to lower flux temperature, as opacifier, and various industrial, mechanical, glass industry and cosmetics applications
Colemanite is considered as a non-hazardous material and it has not been tested for detailed occupational and toxicological studies. However, human study of occupationally exposed borate worker population showed no adverse reproductive effects.
Precautionary Statements: Obtain special Instructions before use If exposed or concerned, get medical advice/attention Do not handle until all safety precautions have been read and understood. Wear protective gloves, eye protection. Dispose of contents/container to comply with local, state and federal regulations.
|Molecular Weight||411.09 g/mol|
|Synonyms||Hydrated calcium borate, Di-calcium hexaborate pentahydrate, Boro-calcite|
|Appearance||Ground, light grey to tan stones granulate (80% -75 micron or 80% -45 micron)|
|Boiling Point||Not applicable|
|Freezing Point||Not applicable|
|Melting Point||986 °C|
|Vapour Pressure||Not applicable|
|Bulk Density||1460-1520 kg/m3|
|Solubility in Water||0.81 g/l (25°C)|