Red precipitate

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(Old. Chem) mercuric oxide (HgO) a heavy red crystalline powder obtained by heating mercuric nitrate, or by heating mercury in the air. Prepared in the latter manner, it was the precipitate per se of the alchemists.
See under Precipitate.

See also: Precipitate, Red

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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About 5 ml of Benedict's reagent was assorted with few ml of the sample and then boiled, orange red precipitate shows the nearness of reducing sugar.
After 6 days, the colorless water was red colored and a red precipitate was observed under the plastic box (Fig.
Red precipitate of cuprous oxide was formed within two minutes if a monosaccharide was present.
Green Precipitate 0.1-0.5gm% (+1) Yellow Precipitate 0.5-1gm% (+2) Orange Precipitate 1-2 gm% (+3) Red Precipitate >2 gm % (+4) Patients with diarrhoea, vomiting, abdominal distention or perianal excoriation, having pH [less than or equal to] 5.5 and reducing sugar [greater than or equal to] 0.5 -1 gm % (+2) were classified as sugar intolerance.
This disconnect in the results finally got some clarification when a red precipitate was collected and analyzed.