English edit

 
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Etymology edit

di- +‎ thionic + acid

Noun edit

dithionic acid (uncountable)

  1. (inorganic chemistry) An unstable substance, H2S2O6, known only in its solutions and in certain well-defined salts.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for dithionic acid”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)