Re: Can you decompose ammoniumsulfate back to hydrogensulfate and ammonia

Date: Mon Nov 30 07:40:08 1998
Posted By: Susan Rollinson, Other (pls. specify below), organic chemistry, Alleghany Micro
Area of science: Chemistry
ID: 911152625.Ch

Message:


Under ordinary circumstances, ammonium sulfate, (NH3)2SO4, will not 
decompose back to ammonia, NH3, and sulfuric acid, H2SO4. However, the 
Merck Index does indicate that ammonium sulfate decomposes above 280 
degrees Celsius.

Sulfuric acid itself has a boiling point of about 290 degrees C, and 
decomposes to sulfur trioxide and water around 340 degrees C.

Keep in mind that ammonia and sulfuric acid are both highly corrosive and 
toxic substances!

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