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单词
brown-ring test
释义
brown-ring test
brown-ring test
[
′brau̇n‚riŋ ‚test
]
(analytical chemistry)
A common qualitative test for the nitrate ion; a brown ring forms at the juncture of a dilute ferrous sulfate solution layered on top of concentrated sulfuric acid if the upper layer contains nitrate ion.
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更新时间:2025/6/6 2:55:02