SULPHURIC AND SULPHUROUS ACIDS
SULPHURIC ACID
Sulphuric acid, H2SO4 , is a colourless oily liquid (also called as oil of vitriol). It is charecterised by the following
Relative density 1.43
Melting point 10OC
Boiling point 338OC
Specific gravity 1.8
PREPARATION
In the laboratory it is prepared by the action of nitric acid on […]
OXIDES OF NITROGEN
DINITROGEN TRIOXIDE
Dinitrogen trioxide is a very unstable substance and exists as such only in a solid form. In the liquid state it dissociates into NO and NO2.
PREPARATION
When a mixture of NO and NO2 is cooled, it freezes to give dinitrogen trioxide, which is a blue coloured solid.
NO + NO2 è N2O3
CHEMICAL PROPERTIES
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OXIDES OF NITROGEN
DINITROGEN OXIDE
Dinitrogen oxide or nitrous oxide is a colourless gas. N2O is known as “laughing gas’. When inhaled, it causes a feeling of lightheadedness and gaiety. It has been used as an anesthetic. It has the following characteristics
Density 1.97 g/dm3
Melting point -90.8 […]
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