sentence: Potassium arsenate is made by reacting amounts of potassium hydroxide with arsenic acid.
sentences_after: The amount of potassium hydroxide can be changed to make the different chemical formulas. Potassium arsenate was once used for medicine but is too toxic to be used now.
concept_name: potassium arsenate
headings: Potassium arsenate Preparation and uses
categories: Potassium compounds Arsenic compounds