What is Arsenic acid?
'''Arsenic acid''' is a [[chemical compound]]. It is also an [[acid]]. Its chemical formula is H<sub>3</sub>AsO<sub>4</sub>. It has [[hydrogen]] and [[arsenate]] [[ion]]s in it. ==Properties== Arsenic acid is a colorless solid. It absorbs water from the air. It is a strong [[oxidizing agent]]. It is similar to [[phosphoric acid]]. It can be [[deprotonation|deprotonated]] three times, making various [[arsenate]]s. Arsenic acid reacts with [[iodide]] to make [[iodine]]. ==Preparation== It is made by reacting moist arsenic with [[ozone]] or by reacting [[arsenic trioxide]] with concentrated [[nitric acid]]. It can also be made by dissolving [[arsenic pentoxide]] in water. ==Uses== Arsenic acid is used in the making of some [[dye]]s and [[organic chemistry|organic]] arsenic compounds. It is also used as a [[preservative]] for [[wood]] and a [[biocide]] (something that kills all living things). ==Related pages== *[[Arsenous acid]] *[[Arsenic trichloride]] *[[Arsine]] [[Category:Arsenic compounds]] [[Category:Acids]]