Identifying acid salts of magnesium
In preliminary work they found that significant quantities of certain nitrogen oxides and of sulfuric acid were absorbed by lower hydrates of magnesium sulfate. It appeared that acid salts were being formed but the known chemistry of group IIA (group 2) sulfates and acid sulfates which was worked out many years ago did not provide an explanation of their observations. They developed a new technique for delineating the solidus boundary of ternary mixtures using friability tests and applied it to the systems of interest. Magnesium acid salt hydrates with compositions on the solidus boundary could be readily identified. X-ray powder patterns confirmed the existence of two previously unknown ternary compounds, Mg/sub 2/(HSO/sub 4/)/sub 2/SO/sub 4/ x 4H/sub 2/O and Mg(HSO/sub 4/)/sub 2/ x H/sub 2/SO/sub 4/ x 3H/sub 2/O. Mixed acid sulfate-nitrate-hydrates could be detected but fuming at room temperatures interfered with quantitative determinations of the solidus boundary and X-ray measurements.
- Research Organization:
- Worcester Polytechnic Institute, MA
- OSTI ID:
- 5775548
- Journal Information:
- J. Phys. Chem.; (United States), Vol. 91:23
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
HYDRATES
PHASE STUDIES
X-RAY DIFFRACTION
INORGANIC ACIDS
MAGNESIUM COMPOUNDS
SALTS
POWDERS
QUALITATIVE CHEMICAL ANALYSIS
QUANTITATIVE CHEMICAL ANALYSIS
ALKALINE EARTH METAL COMPOUNDS
CHEMICAL ANALYSIS
COHERENT SCATTERING
DIFFRACTION
HYDROGEN COMPOUNDS
SCATTERING
400102* - Chemical & Spectral Procedures
640107 - Astrophysics & Cosmology- Planetary Phenomena