19569-21-2
Huntite
CAS: 19569-21-2
Molecular Formula: C4H8CaMg3O12
19569-21-2 - Names and Identifiers
| Name | Huntite |
| Synonyms | Huntite CaMg3(CO3)4 Neracarb HH Huntite (CaMg3(CO3)4) |
| CAS | 19569-21-2 |
19569-21-2 - Physico-chemical Properties
| Molecular Formula | C4H8CaMg3O12 |
| Molar Mass | 361.09212 |
| Density | 2.696 g/cm3 |
19569-21-2 - Reference Information
| Overview | calcium carbonate magnesium is also called dolomite. Dolomite is the main solvent raw material for the preparation of glass, because it is a natural magnesium ore, can be used to extract magnesium oxide raw materials. A mineral composed of calcium and magnesium carbonate CaMg(CO3)2. Colorless, white or gray. Rocks containing more than 15% of magnesium carbonate are called dolomite, and those with less content are Magnesia limestone, while those with dolomite and calcite are Dolomite limestone. As a primary sediment, dolomite is distributed in metal veins and limestone whose properties are altered by the process of dolomitization. In this process, the calcium carbonate is converted, in whole or in part, to dolomite by magnesium-rich seawater or a magnesium-rich solution that penetrates the rock fractures. |
| Application | Rich in dolomite ore reserves, mainly distributed in Liaoning Haicheng, Qinghai le Yu, Gansu Yongdeng, Hubei Daye, China, nanjing, Jiangsu and other places. Mainly used in ceramic blank and glaze, alkaline refractory, glass industry, but also as dolomite cement raw materials, building materials, in the metallurgical industry is commonly used flux. |
| preparation | a method for preparing calcium carbonate and magnesium by direct carbonization of calcined ammonium salt leaching solution of low-grade phosphate ore, comprising the following steps: (1) The pyrolysis product and CO2 gas are obtained by calcining the medium and low grade phosphate rock, and the main reactions in this process are as follows: CaCO3 · MgCO3 = CaO MgO 2CO2; (2) the obtained pyrolysis product is mixed with ammonium nitrate solution (or ammonium chloride solution) to obtain ammonium salt leaching solution of calcined medium-low grade phosphate rock containing calcium and magnesium salt and NH3 gas, the main reactions in this process are as follows: CaO MgO 2H2O = Ca(OH)2 Mg(OH)2; Ca(OH)2 2NH4NO3 = Ca(NO3)2 2NH3 2H2O; Mg(OH)2 2NH4NO3 = Mg(NO3)2 2NH3 2H2O; (3) the CO2 gas obtained in step (1) and the NH3 gas obtained in step (2) of the obtained calcined medium-low grade ammonium phosphate ore leaching solution are passed into the calcined medium-low grade ammonium phosphate ore In the salt leaching solution, calcium and magnesium carbonate can be obtained by carbonizing and precipitating calcium and magnesium from the ammonium salt leaching solution of the calcined medium-low grade phosphate ore. In this process, the following reactions mainly occur: Ca(NO3)2 Mg(NO3)2 4NH3 2CO2 2H2O = CaCO3 MgCO3 4NH4NO3. |
Last Update：2024-04-09 21:04:16
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19569-21-2
N-allyl-N-(2-(5-methoxy-1H-indol-3-yl)ethyl)prop-2-en-1-amine
1-甲基-2-(甲基硫烷基)苯
4-甲基-3-硝基苯胺
4-(三氟甲基)苯乙醇
FmocNH-PEG3-t-butyl ester
ISOPROPYL 2-(M-NITROBENZYLIDENE)-ACETOACETATE
2-Amino-6,6-dimethoxy-hexanoic acid methyl ester
1-Benzyl-4-[(5,6-dimethoxy-1-indanone)-2-yl]methylpiperidine
4.9物(甲基双烯双酮)
N-allyl-N-(2-(5-methoxy-1H-indol-3-yl)ethyl)prop-2-en-1-amine
1-甲基-2-(甲基硫烷基)苯
4-甲基-3-硝基苯胺
4-(三氟甲基)苯乙醇
FmocNH-PEG3-t-butyl ester
ISOPROPYL 2-(M-NITROBENZYLIDENE)-ACETOACETATE
2-Amino-6,6-dimethoxy-hexanoic acid methyl ester
1-Benzyl-4-[(5,6-dimethoxy-1-indanone)-2-yl]methylpiperidine
4.9物(甲基双烯双酮)