borax bead test

/B AO1 R AE0 K S B IY0 D T EH0 S T/
noun
  1. 1

    (inorganic chemistry) in qualitative inorganic analysis, a test for the presence of certain metallic elements by observing the colours given to a bead of borax in a loop of platinum wire held in the oxidizing and reducing parts of a Bunsen burner flame

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