ALL REACTIONS

SODIUM BICARBONATE NaHCO3

Properties of Sodium bicarbonate NaHCO3:

Baking soda, salt Bulriha, nahkolit. White, at low heat decomposes. In the wet state begins to decompose at room temperature. Moderately soluble in water (weak hydrolysis on the anion). Crystalline hydrates do not form. Decomposes by acids, neutralized by alkalis. Participates in the exchange reactions.

Obtaining Sodium bicarbonate NaHCO3:

NaOH (diluted) + EO2 = NaHEO3 (E = С, S)

2 NaOH (conc.) + EO2 = Na2EO3 + H2O.

Na2CO3 (saturated) + H2O + CO2 = 2 NaHCO3↓ (30-40° С).

NaCl (saturated) + H2O + NH3 + CO2 = NaHCO3↓ + NH4Cl

Reactions with Sodium bicarbonate NaHCO3:

2 NaHCO3 = Na2CO3 + CO2 + H2O (250-300° С).

NaHCO3 (diluted) + 4H2O = [Na(H2O)4](+) + НСO3(-)

НСO3(-) + H2O ↔ H2CO3 + ОН(-).

NaHCO3 + НСl (diluted) = NaCl + CO2↑ + H2O.

NaHCO3 + NaOH (conc.) = Na2CO3 + H2O.

6 NaHCO3 (conc.) + 3Cl2 = NaClO3 + 5 NaCl + 6CO2↑ + 3H2O (boiling).

NaHCO3 + SO2 (gas) = NaHSO3 + CO2↑.

NaHCO3 + NaH2PO4 = Na2HPO4 + CO2↑ + H2O.

4 NaHCO3 + 2CuSO4 = Cu2CO3(ОН)2 ↓ + 2 Na2SO4 + 3 CO2 ↑ + H2O (boiling).