methionic definition

  • adjective:
    • Of, with respect to, or designating, a sulphonic (thionic) acid derivative of methane, acquired as a stable white crystalline substance, CH2.(SO3H)2, which types well-defined salts.
  • others:
    • Noting an acid, a colorless crystalline deliquescent, very stable compound, CH2(SO3H)2, made by the activity of fuming sulphuric acid on lactic acid, and formed, in tiny volume, because of the action of sulphuric acid on ether.
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