Carnallite
Carnallite
CAS: 1318-27-0
Molecular Formula: Cl3H12KMgO6
Carnallite - Names and Identifiers
| Name | Carnallite |
| Synonyms | Karnallit Carnallite KCl·MgCl2·6H2O |
| CAS | 1318-27-0 |
Carnallite - Physico-chemical Properties
| Molecular Formula | Cl3H12KMgO6 |
| Molar Mass | 277.85398 |
| Physical and Chemical Properties | Orthorhombic crystal system, the crystal is pseudo-hexagonal double cone, usually granular, dense block or fibrous assembly. Pure is colorless or white. |
| Use | For the extraction of metal magnesium, potassium chloride, magnesium chloride, can also be used to produce fertilizer, hydrochloric acid, etc |
Carnallite - Upstream Downstream Industry
| Raw Materials | Potassium chloride Magnesium chloride |
| Downstream Products | Potassium Sulphate Potassium chloride Magnesium chloride |
Carnallite - Nature
Open Data Verified Data
Carnallite is one of the widely distributed potash minerals. Orthorhombic crystal system, the crystal is pseudo-hexagonal double cone, but very rare, usually granular, dense block or fibrous assembly. Pure colorless or white, often containing impurities and red, rose, yellow. The fresh cross-section was glassy gloss, and quickly deliquescent darkened in the air to oil gloss. Hardness 2~3, density 1.6g/cm3. Fluorescence. Soluble in water, the dissolution of a special Broken Sound. Highly hygroscopic, easily deliquescent in the air. Non-conductive. KC1 precipitates after decomposition in alcohol and glycerol. Carnallite is the final formation of mineral salt lakes, often with the potassium salt, rock salt, anhydrite, potassium salt magnesium alum, polyhalite or magnesium sulfate and other symbiotic.
Last Update：2025-06-10 22:55:16
Carnallite - Preparation Method
Open Data Verified Data
see "potash salt" for the mining method of solid potash deposits ". The methods of channel, drilling or well-Canal combined with the exploitation of potassium-containing brine and Salt Beach Light-cured halogen are adopted. Currently, channel mining is mainly used. Floatation was used for carnallite beneficiation.
L_Canal mining process flow: Mine-excavation Canal-set-brine infusion-salt-tin beach-water mining vessel-harvesting carnallite pulp-slurry storage tank
2. Flotation process: Carnallite pulp-dehalogenation-carnallite raw ore-solution-flotation-washing-filtration (including leaching) repeated pulp washing-filtration-drying-refined potassium-packaging
The process of preparing potassium chloride by cold decomposition-flotation of carnallite in the first concentrator of Qinghai Potash fertilizer plant is as follows: discharge of mother liquor back to Salt Field raw ore-processing and decomposition-rough selection-sweeping selection-dip shrinkage-tailings, two-time selection-filtration-drying of the final product.
Last Update：2022-01-01 10:58:07
Carnallite - Application
Open Data Verified Data
same as "potassium rock salt". In addition, the metal magnesium can be refined.
Last Update：2025-08-19 16:24:40
Carnallite - Safety
Open Data Verified Data
same as "potassium rock salt".
Last Update：2022-01-01 10:58:07
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