borax bead

American  

noun

Chemistry.

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

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Example Sentences

In borax bead gives color characteristic of nickel.

From The Elements of Blowpipe Analysis by Getman, Frederick Hutton

This globule may be examined for iron, cobalt, and nickel with the borax bead.

From The Elements of Blowpipe Analysis by Getman, Frederick Hutton

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

From The Elements of Blowpipe Analysis by Getman, Frederick Hutton

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

From The Elements of Blowpipe Analysis by Getman, Frederick Hutton

The arsenides and sulphides, before being examined, should be roasted, and then heated with the borax bead.

From A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations by Anonymous