Sodium sulfate: Difference between revisions
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Latest revision as of 16:32, 27 June 2019
Chemical formula | Na2SO4 |
---|---|
OTP appearance | white crystals |
Molar Mass(g/mol) | 142.04 |
Density(g/cc) | 2.664 |
Melting Point(°C) | 884 |
Boiling Point(°C) | 1429 |
Solubility in water(g/L) | 232 |
NFPA 704 |
|
Thermal decomposition of sodium sulfate decahydrate | |
33 | decahydrate
33°C anhydrous |
Uses
Primary
- Intermediate in many other reactions
Secondary
- Drying agent
- Thermometer calibration point
Natural occurrence
- Occurs naturally as mirabilite
Hazards
- GRAS
Production
- See What links here
Synthesis
from sulfuric acid
Combine sulfuric acid and sodium hydroxide, sodium carbonate, or sodium bicarbonate
- H2SO4 + 2 NaOH → Na2SO4 + 2 H2O
- H2SO4 + Na2CO3 → Na2SO4 + H2O + CO2
- H2SO4 + 2 NaHCO3 → Na2SO4 + 2 H2O + 2 CO2
from sodium bisulfate
Combine sodium bisulfate and sodium chloride in water, producing sodium sulfate and hydrochloric acid
- NaHSO4 + NaCl{Na2SO4 + HClheat}→