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blue vitriol
noun
, Chemistry, Mineralogy.
- a salt, copper sulfate, CuSO 4 ⋅5H 2 O, occurring naturally as large transparent, deep-blue triclinic crystals, appearing in its anhydrous state as a white powder: used chiefly as a mordant, insecticide, fungicide, and in engraving.
blue vitriol
noun
- the fully hydrated blue crystalline form of copper sulphate
blue vitriol
- A blue, crystalline compound of copper sulfate. Blue vitriol is soluble in water, and is a very important industrial salt of copper. It is used in insecticides and germicides, in electrolytes for batteries, and in electroplating baths. Chemical formula: CuSO 4 ·5H 2 O.
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Word History and Origins
Origin of blue vitriol1
First recorded in 1760–70
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Example Sentences
Put in that fifty pounds of blue vitriol and fill with water, throwing a little straw over the top.
From Project Gutenberg
For long, green vitriol was confused with blue vitriol, which generally occurs as an impurity in crude green vitriol.
From Project Gutenberg
It is prepared as follows: Dissolve four pounds of blue vitriol (blue stone, or copper sulphate) in several gallons of water.
From Project Gutenberg
For each pound of logwood, dissolve an ounce of blue vitriol in lukewarm water sufficient to wet the goods.
From Project Gutenberg
There is no trace; of sweetness in the constituents of sugar of lead, or of blueness in the constituents of blue vitriol.
From Project Gutenberg
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