English Dictionary:
1. Borax 
[n.]
- A white or gray crystalline salt, with a slight alkaline
taste, used as a flux, in soldering metals, making enamels, fixing
colors on porcelain, and as a soap. It occurs native in certain mineral
springs, and is made from the boric acid of hot springs in Tuscany. It
was originally obtained from a lake in Thibet, and was sent to Europe
under the name of tincal. Borax is a pyroborate or tetraborate of
sodium, Na2B4O7.10H2O. [n.]See 'borax' also in:
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