Sodium carbonate (also known as washing soda or soda ash), Na2CO3 is a sodium salt of carbonic acid. It most commonly occurs as a crystalline heptahydrate, which readily effloresces to form a white powder, the monohydrate. Sodium carbonate is domestically well known for its everyday use as a water softener. It can be extracted from the ashes of many plants. It is synthetically produced in large quantities from salt (sodium chloride) and limestone in a process known as the Solvay process.
Read more about Sodium Carbonate: Uses, Hazards, Occurrence
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2H2O) can also be applied as a source of Ca++ ions to replace the sodium at the exchange complex ... Gypsum also reacts with sodium carbonate to convert in to sodium sulphate which is a neutral salt and does not contribute to high pH ... subsurface drainage system must be present, to permit leaching of the excess sodium by percolation of rain and/or irrigation water through the soil profile ...
... It is based on the extraction of alumina with sodium carbonate ... The first stage is the calcination of the bauxite at 1200°C with sodium carbonate and coke ... The alumina is converted in sodium aluminate ...
... The natural cause is the presence of soil minerals producing sodium carbonate (Na2CO3) and sodium bicarbonate (NaHCO3) upon weathering ... and Mg ions / removes hardness in the water and also converts sodium bicarbonates in river water in to sodium carbonate ... Sodium carbonates (washing soda) further reacts with the remaining Ca and Mg in the water to remove / precipitate the total hardness ...
... carbon dioxide and ammonia are pumped into the solution, then sodium chloride is added until the solution saturates at 40 °C ... and is removed by filtration, and the solution is recycled to produce more sodium carbonate ...
... level and the company had a market share of 20 percent of the German market for sodium carbonate, although it decreased to 13 percent one year later ... fertilizer and 170,000 metric tons (190,000 short tons) of sodium carbonate ... Despite these modernizations the factory equipment, in particular the sodium carbonate production facilities were outdated ...
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