Colemanite - Overview
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Manufacturing Process
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.
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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.
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Non-sodium Fiberglass Industry
Colemanite is used in nonsodium fiberglass industry to make heat resistant glass
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Cleaning Agent
It is used as an ore of boron and as a source of borax (a cleaning agent and useful for industrial chemical)
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Other Applications
Colemanite can be used to lower flux temperature, as opacifier, and various industrial, mechanical, glass industry and cosmetics applications
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Hazards Identification
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.
PRODUCT IDENTIFICATION
CAS No | 12291-65-5 |
Formula | Ca2B6O11.5H2O,(2CaO.3B2O3.5H2O |
Molecular Weight | 411.09 g/mol |
H.S Code | 2528.00.90 |
Synonyms | Hydrated calcium borate, Di-calcium hexaborate pentahydrate, Boro-calcite |
PRODUCT SPECIFICATION
Appearance | Ground, light grey to tan stones granulate (80% -75 micron or 80% -45 micron) |
Odor | Odorless |
pH | 9.1 |
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) |