Reactivity Documentation
Acids, Weak |
| mixed with |
Sulfite and Thiosulfate Salts |
Summary
- Generates gas: Reaction liberates gaseous products and may cause pressurization
- Generates heat: Exothermic reaction at ambient temperatures (releases heat)
- Toxic: Reaction products may be toxic
-
May produce the following gases:
- Sulfur Dioxide
- Sulfur Oxides
Details
Acids, Weak
is a reactive group.
Sulfite and Thiosulfate Salts
is a reactive group.
Reactivity Predictions (for each pair of reactive groups)
Acids, Weak
mixed with
Sulfite and Thiosulfate Salts
Sulfite and Thiosulfate Salts
Hazard Predictions
- Generates gas: Reaction liberates gaseous products and may cause pressurization
- Generates heat: Exothermic reaction at ambient temperatures (releases heat)
- Toxic: Reaction products may be toxic
Thiosulfates decompose to sulfur and sulfur dioxide in acidic solutions (Barberá, J. J., Metzger, A. and Wolf, M. 2000. Sulfites, Thiosulfates, and Dithionites. Ullmann's Encyclopedia of Industrial Chemistry (Online)).
Sulfites decompose to sulfur dioxide in acidic solutions, including in weak acids (Housecroft, C. E.; Sharpe, A. G. Inorganic Chemistry, 2nd ed.; Pearson: Harlow (England), 2005, p. 459).
In the case of weak acids these reactions may be relatively slow, however, with confinement the concentration of gas will build causing pressurization.
Potential Gas Byproducts
- Sulfur Dioxide (SO2)
- Sulfur Oxides (SOx)
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