Fehling's solution


  • WordNet 3.6
    • n Fehling's solution a liquid solution of copper sulfate and potassium tartrate and sodium hydroxide that is used to test for sugar in the urine; solution turns reddish when sugar is present
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Webster's Revised Unabridged Dictionary
    • Fehling's solution (Chem) a standardized solution of cupric hydrate in sodium potassium tartrate, used as a means of determining the reducing power of certain sugars and sirups by the amount of red cuprous oxide thrown down.
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In literature:

This was estimated in the residue left in the flask after distillation by Fehling's solution in the usual way.
"Scientific American Supplement, No. 821, Sep. 26, 1891" by Various
It does not reduce Fehling's solution.
"Scientific American Supplement, No. 841, February 13, 1892" by Various
The hydralcellulose boiled with Fehling's solution reduced 1/12 of the amount required for an equal weight of glucose.
"Researches on Cellulose" by C. F. Cross
Boil some of the Fehling's solution in a test-tube.
"The Elements of Bacteriological Technique" by John William Henry Eyre
It does not ferment in contact with yeast, and does not reduce Fehling's solution.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3" by Various
F. for twenty-four hours, after which time test with Benedict's or Fehling's solutions.
"Dietetics for Nurses" by Fairfax T. Proudfit
It is a ketose sugar, reduces Fehling's solution, forms the same osazone as glucose, and is easily fermentable by yeast.
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher
It is not coloured blue by iodine; and it reduces ammoniacal silver and gold solutions, but not Fehling's solution.
"Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 6" by Various
Fehling's solution, 68, 299.
"A Civic Biology" by George William Hunter