borax bead

noun

, Chemistry.

1. a bead of fused borax, used in chemical analysis for the identification of certain metal oxides.

Example Sentences

A glassy drop of molten flux, as borax or microcosmic salt, used as a solvent and color test for several mineral earths and oxides, as of iron, manganese, etc., before the blowpipe; as, the borax bead; the iron bead, etc.

From Project Gutenberg

With borax bead on platinum wire.

From Project Gutenberg

In flame on platinum wire____ With borax bead on platinum wire.

From Project Gutenberg

In flame on platinum wire____ With borax bead on platinum wire.

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In borax bead reacts for iron.

From Project Gutenberg