Household Chemistry
Thursday, January 11, 2018
# 2: The Nitrate Ion Test
... this is also known as the Brown Ring Test...
2HNO
3
+ 3H
2
SO
4
+ 6FeSO
4
→ 3Fe
2
(SO
4
)
3
+ 2NO + 4H
2
O
[Fe(H
2
O)
6
]SO
4
+ NO → [Fe(H
2
O)
5
(NO)]SO
4
+ H
2
O
Source: Wikipedia
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