How to use in-sentence of “arsenic trioxide”:
+ It is made by reacting moist arsenic with ozone or by reacting arsenic trioxide with concentrated nitric acid.
+ It is toxic because it gets a layer of arsenic trioxide on it by oxidation in the air.
+ It melts at 300°C and oxidationoxidizes to arsenic trioxide at higher temperatures.
+ The arsenic trioxide can be reduction reduced with carbon.
+ It cannot be made in a crystalline form because it turns into arsenic trioxide and water again.
+ About 50,000 tons of arsenic trioxide are made each year.
+ The arsenic trioxide is condensed, while the sulfur dioxide does not condense.
+ This makes arsenic trioxide which sublimes, while the iron oxide stays behind.
