Is MgCO3 a precipitate?

Is MgCO3 a precipitate?

If magnesium chloride (or sulfate) is treated with aqueous sodium carbonate, a precipitate of basic magnesium carbonate—a hydrated complex of magnesium carbonate and magnesium hydroxide—rather than magnesium carbonate itself is formed: Mg(HCO3)2 → MgCO3 + CO2 + H2O.

Is MgCO3 soluble?

Explanation: Per the solubility rules, the carbonates of Group 2 metals are insoluble. Thus, MgCO3 is insoluble. Its solubility is only 14 mg/100 mL.

Is MgCO3 acidic basic or neutral?

Identification. The chemical formula for magnesium carbonate is MgCO3. It is slightly alkaline, rather than acidic.

What causes precipitation of CaCO3 and MgCO3?

This water contains high amounts of bicarbonates, Calcium and Magnesium, with an EC= 3.4 and a pH =8.2. The precipitations found are brown which make me think it contains iron too. According to literature, high amounts of bicarbonates coupled with high contents of Ca and Mg, causes precipitation of CaCO3 and MgCO3.

What is the intermediate phase of magnesium carbonate?

Increasing the temperature to 75°C produced anhydrous magnesium carbonate, magnesite (MgCO3), preceded by the intermediate phase, hydromagnesite [Mg (CO3)4 (OH)2 •4H2O].

How long does it take for magnesium carbonate to react with CO2?

Under modest pressures (90 bar) and temperatures (50°C), scCO2 saturated with water was found to convert >70 wt% forsterite to a hydrated magnesium carbonate, nesquehonite (MgCO3 •3H2O) and magnesite (MgCO3), after 72 hours of reaction.

How can I get rid of precipitation of CaCO3?

This allows softening to take place. The warm lime softening process operates in the temperature range of 120-140°F (49-60°C). The solubilities of calcium, magnesium, and silica are reduced by increased temperature. Therefore, they are more effectively removed by warm lime softening than by cold lime softening.