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polysulphide

/ ˌpɒlɪˈsʌlfaɪd /

noun

  1. any sulphide of a metal containing divalent anions in which there are chains of sulphur atoms, as in the polysulphides of sodium, Na 2 S 2 , Na 2 S 3 , Na 2 S 4 , etc
“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


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Example Sentences

Hence magnesium and sulphur combine under the action of pressure, forming magnesium sulphide and possibly a polysulphide.

After five compressions a mass is obtained which, in contact with moist air, gives off an odor of hydrogen polysulphide.

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polysulfidepolysuspensoid