The thermal dehydration of magnesium sulfate hexahydrate (MgSO3.6H2O) and magnesium sulfite trihydrate (MgSO3.3H2O)

Author

Raafat F. Abdel-Malek, New Jersey Institute of Technology

Document Type

Thesis

Date of Award

6-30-1975

Degree Name

Master of Science in Chemical Engineering - (M.S.)

Department

Chemical Engineering and Chemistry

First Advisor

Robert G. Poetz

Second Advisor

Howard S. Kimmel

Third Advisor

Leonard Dauerman

Abstract

The thermal dehydration of MgSO₃.3H₂O and MgSO₃.6H₂O have been studied by differential thermal analysis, differential scanning calorimetry and thermal gravimetric analysis.

Similar studies by other groups led to contradictory conclusions. In this investigation, these results were reconciled and it was concluded that MgSO₃.6H₂O, under equilibrium conditions, dehydrates in two steps through the intermediate formation of MgSO₃.3H₂O.

One consequence of this work is the development of a simple analytical procedure, using TGA, for the quantitative determination of both hydrates in mixtures and in the presence of thermally inactive material.

Recommended Citation

Abdel-Malek, Raafat F., "The thermal dehydration of magnesium sulfate hexahydrate (MgSO3.6H2O) and magnesium sulfite trihydrate (MgSO3.3H2O)" (1975). Theses. 2074.
https://digitalcommons.njit.edu/theses/2074