- Source: Sodium pyrosulfate
Sodium pyrosulfate is an inorganic compound with the chemical formula of Na2S2O7. It is a colorless salt. It hydrolyses in water to form sodium bisulfate with a chemical formula of NaHSO4 which has a pH of around 1.
Preparation
Sodium pyrosulfate is obtained by heating sodium bisulfate to 280 °C (536 °F)
2 NaHSO4 → Na2S2O7 + H2O
Temperatures above 460 °C further decompose the compound, producing sodium sulfate and sulfur trioxide:
Na2S2O7 → Na2SO4 + SO3
Applications
Sodium pyrosulfate was used in analytical chemistry. Samples are fused with sodium pyrosulfate to ensure complete dissolution before a quantitative analysis.
See also
Pyrosulfate
Potassium bisulfate
Potassium pyrosulfate
References
Kata Kunci Pencarian:
- Sodium pyrosulfate
- Pyrosulfate
- Potassium pyrosulfate
- Sulfur trioxide
- Sodium sulfate
- Sodium dodecyl sulfate
- Sodium bisulfate
- List of CAS numbers by chemical compound
- Silver sulfate
- Methanesulfonic anhydride
