arsenous acid造句

• Arsenic contaminated water typically contains arsenous acid and arsenic acid or their derivatives.
• Unlike phosphorous acid, arsenous acid is genuinely tribasic, with the formula As ( OH ) 3.
• Also called sodium " meta "-arsenite, it is the sodium salt of arsenous acid.
• Arsenic acid tends to exist as the ions [ HAsO 4 ] 2 " and [ H 2 AsO 4 ]  " in neutral water, whereas arsenous acid is not ionized.
• This is useful for reactions where the product does not deposit as a solid, such as the determination of the amount of arsenic in a sample from the electrolysis of arsenous acid ( H 3 AsO 4 ).
• The book includes seventeen chapters : 1 ) coffee, 2 ) coffee leaves as a beverage 3 ) tea, 4 ) Paraguayan Tea ( yerba mat?), 5 ) Guarana, 6 ) chocolate, 7 ) Fahan Tea ( the orchid Angraecum fragrans Thouars as a source of coumarin ), 8 ) Khat, 9 ) Fly Agaric ( Amanita muscaria ) opiate derived from the " poison lettuce, " 10 ) thorn apple, 11 ) coca, 12 ) opium, 13 ) Lactucarium 14 ) hashish, 15 ) tobacco 16 ) Betel and Related Substances ( Areca catechu, areca nut; Piper siriboa, the betel leaf ) and 17 ) arsenous acid or arsenic trioxide ( As 2 O 3 ).