Sulphur Dioxide

Sulphur Dioxide
1	Formula ----------------------- Molecular Weight	------------------------------------------------------------------------------------- 64.06
2	Synonym
3	Physical Property	Physical state Gas Colour Colourless Odour Taste Typical pungent Solubility It is soluble in water ( 36 in 1 ) and alcohol ( 114 in 1 ) and soluble in chloroform and ether .
4	Chemical Property
5	Incompatibility	Under alkaline conditions  , sulphur dioxide is converted to bisulphite and sulphite . In buffer solution sulphur dioxide reduces hydroxide ion concentrations due to formation of HSO3 and the solution becomes more acidic .
6	Uses	i)                    Sulphur dioxide has antioxidant and antimicrobial properties ii)                   sulphur dioxide is used as preservative for food . iii)                 it is also used as a fumigant and to disinfect equipment in the wine and food industries . iv)                 In industry it is used for bleaching wood pulp . v)                  A lotion is prepared from sulphur dioxide and glycerin is used to cure sore throat in cold , tonsillitis , and skin infections .
7	Side Effect	i)                    Sulphur dioxide is highly irritant to eye , skin and mucous membrane . ii)                   Inhalation results in irritation of the respiratory tract .
8	Storage	It is stored in cylinders and usually packagesd under pressure in liquid form .