Products : Chemical Properties
CHEMICAL REACTIONS
| STRONG ACID |
HCl + NaHCO3 ® NaCl + H2O + CO2 |
| WEAK ACID |
CH3CHOHCOOH +NaHCO3 ® CH3CHOHCOONa + H2O + CO2 |
| STRONG BASE |
NaOH + NaHCO3 ® Na2CO3+ H2O |
| THERMAL REACTION |
2 NaHCO3 –heat® Na2CO3 + H2O + CO2 |
PHYSICAL AND CHEMICAL PROPERTIES OF SOLVAY SODIUM BICARBONATE
| Molecular weight |
84 |
| Real relative density |
2,22 kg/dm3 à 20°C |
| Apparant relative density |
0,65 - 1,2 kg/dm3 according to particle size |
| Specific heat capacity |
0,249 Kcal/kg at 20°C, 0,280 Kcal/kg at 100°C |
| Heat of formation |
2700 Kcal/kg |
| Solubility in alcohol |
insoluble in ethanol |
| in Fat/oil |
insoluble in fats/oils |
| in water |
87g/kg of solution at 20°C |
| pH ( 1 %solution) |
approx. 8,4 |
| Humidity absorption |
less than 0,01 % over 15 days at 25°C and 76% RH |
| Melting point |
progressive decomposition as temperature rises, total at 270°C |
| Alkali equivalent |
100 % NaHCO3 = 36,9 % Na2O |
| Acid equivalent |
1g NaHCO3 = 0,434 g HCl |
|
