borax bead
nounChemistry.
a bead of fused borax, used in chemical analysis for the identification of certain metal oxides.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use borax bead in a sentence
Uranium colours the borax-bead yellowish-green in the oxidising, and green in the reducing, flame.
A Textbook of Assaying: For the Use of Those Connected with Mines. | Cornelius Beringer and John Jacob BeringerSubstances containing chromium impart a green colour to the borax bead in both flames.
A Textbook of Assaying: For the Use of Those Connected with Mines. | Cornelius Beringer and John Jacob BeringerThe borax-bead is colourless in the oxidising, and dark-brown in the reducing, flame.
A Textbook of Assaying: For the Use of Those Connected with Mines. | Cornelius Beringer and John Jacob BeringerDidymium salts have a rose or violet colour, and impart (when in sufficient quantity) the same colour to the borax bead.
A Textbook of Assaying: For the Use of Those Connected with Mines. | Cornelius Beringer and John Jacob BeringerWith borax bead it reacts for iron and sometimes for manganese.
The Elements of Blowpipe Analysis | Frederick Hutton Getman
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