sodium arsenate

noun

Definition of sodium arsenate

  1. :  an arsenate of sodium: such as a :  the poisonous secondary orthoarsenate Na2HAsO4 or its hydrates that are used chiefly in dyeing and in medicine b :  the poisonous normal orthoarsenate Na3AsO4.12H2O used chiefly in making other arsenates and insecticides

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