sulphur dioxide

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noun

a colourless soluble pungent gas produced by burning sulphur. It is both an oxidizing and a reducing agent and is used in the manufacture of sulphuric acid, the preservation of a wide range of foodstuffs (E220), bleaching, and disinfecting. Formula: SO 2Systematic name: sulphur(IV) oxide

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His boss, whom he admires, is waiting to meet with him about the big project.

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Words nearby sulphur dioxide

sulphur, sulphurate, sulphur-bottom, sulphur butterfly, sulphur-crested cockatoo, sulphur dioxide, sulphureous, sulphuret, sulphuretted hydrogen, sulphur-flower, sulphuric acid

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

How to use sulphur dioxide in a sentence

Why is it necessary that the fabric be moist in order to be bleached by sulphur dioxide fumes?
Textiles|William H. Dooley
It burns with a pale blue flame to form carbon dioxide and sulphur dioxide.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3|Various
It may be prepared in the amorphous form by heating cobalt with sulphur dioxide, in a sealed tube, at 200 C.
Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5|Various
The goods are left thus exposed to the sulphur dioxide overnight, when they are taken out and washed in water.
Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1|Various

There are practically but two chemicals which are used in gaseous disinfection, and these are sulphur dioxide and formaldehyde.
The Home Medical Library, Volume V (of VI)|Various