SODIUM CARBONATE LIGHT ROMANIA
CAS number: 497-19-8, 5968-11-6 (monohydrate) 6132-02-1 (decahydrate)
EC Number: 207-838-8
RTECS number: VZ4050000
Molecular formula: Na2CO3
Molar mass: 105.9885 g / mol (anhydrous) 124.00 g / mol (monohydrate) 286,14 g / mol (decahydrate)
Appearance: hygroscopic, solid White
Density: 2.54 g / cm 3 (anhydrous) 2.25 g / cm 3 (monohydrate) 1.51 g / cm 3 (heptahydrate) 1.46 g / cm 3 (decahydrate)
Melting point: 851 ° C (anhydrous) 100 ° C (Decay, monohydrate) 33.5 ° C (decomp, decahydrate) 32 ° C (heptahydrate)
Boiling point: 1633 ° C (anhydrous)
Solubility in water: 71 g / L (0 ° C) 215 g / L (20 ° C) 455 g / L (100 ° C)
The aqueous solution of the chemical formula Na2CO3 is a clear colorless chemical. Crystal soda (Na2CO3.10H2O) can be found in the form. Despite the hydrolysis of the solutions due to their basic properties show that the methylorange indicator can be titrated with strong acids. This compound is found as a mineral in certain marine plants and some rocks. Generally its deposits are in Africa and Asia but are generally obtained artificially.
Production and Reactions
Sodium chloride and ammonia concentrate solution was formed by solvay method and carbon dioxide was passed into bubbles and sodium bicarbonate was precipitated.
NaCl NH3 CO2 H2O? NaHCO3 NH4Cl
Sodium bicarbonate was then converted to sodium carbonate by heating water and releasing carbon dioxide:
2 NaHCO3? Na2CO3 H2O CO2
After the 1930s with the Hou method, the production of ammonium chloride as well as sodium carbonate has been observed in the products whose production has changed.
NH3 CO2 H2O? NH4HCO3
NH4HCO3 NaCl? NH4Cl NaHCO3
Second, it can be obtained by the same process as the solvent method.
2 NaHCO3? Na2CO3 H2O CO2
When dilute hydrochloric acid is poured into the sodium carbonate solution, CO2 is released. When this gas is activated with Ba (OH) 2, the clear solution is dissolved and the white barium carbonate begins to precipitate. Thus, barium carbonate can be obtained.
Glass is produced at high temperature by sand and it is produced by glass.
In the paper industry; water treatment from dough withdrawal in many steps to find a wide range of use.
When reactive dye is used in the textile industry, sodium carbonate is used to form the bond between dye and fiber.
In this sector, it is used to settle Ca 2 and Mg 2 ions in water treatment and to adjust pH when the environment is acidic.
As a food additive, it is used as an acid regulator, anti-caking agent and stabilizer, and is also used in the production of sherbet powder.
Sodium carbonate precipitates ions, which make hardness in water, as carbonate. In this way, it is used as a softener and whitener in washing machines.
As a foaming agent, it provides ph balance in toothpastes and provides ph balance in toothpastes. It is used as a building block or filling material in detergent and as an alkali source in many sectors in order to stop hydrolysis in invert sugar production.