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Borax (also referred to as sodium borate, tincal (/ ˈ t ɪ ŋ k əl /) and tincar (/ ˈ t ɪ ŋ k ər /)) is a salt (ionic compound), a hydrated or anhydrous borate of sodium, with the chemical formula Na 2 H 20 B 4 O 17. [1] [a] It is a colorless crystalline solid that dissolves in water to make a basic solution.
The acetate is formed by vinegar acting on copper. One version was used as a green pigment. White arsenic – arsenious oxide, formed by sublimating arsenical soot from the roasting ovens. White lead – carbonate of lead, a toxic
Thus borax, for example, is still often described as a decahydrate Na 2 B 4 O 7 ·10H 2 O, with the implied anion [B 4 O 7] 2−, whereas the correct formula is Na 2 B 4 O 5 (OH) 4 ·8H 2 O, with anion [B 4 O 5 (OH) 4] 2−. The following table gives some of the crystalline sodium borates in this family. [2]
Borax (Na 2 B 4 O 5 (OH) 4 · 8 H 2 O [2]) is a borate mineral found in evaporite deposits of alkaline lacustrine environments and as a surface efflorescence in arid regions. It is the chief mineral mined from the deposits at Boron, California and nearby locations, and is the chief source of commercial borax .
People are ingesting borax. Also known by its chemical name sodium borate decahydrate, borax is a salt typically used to kill ants and boost laundry detergent, among other household cleaning needs ...
Borax crystals. Common borate salts include sodium metaborate (NaBO 2) and borax. Borax is soluble in water, so mineral deposits only occur in places with very low rainfall. Extensive deposits were found in Death Valley and shipped with twenty-mule teams from 1883 to 1889. In 1925, deposits were found at Boron, California on the edge of the ...
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The hydrated tetraborate anion occurs in the mineral borax (sodium tetraborate octahydrate) with the formula Na 2 [B 4 O 5 (OH) 4]·8H 2 O. The borax chemical formula is also commonly written in a more compact notation as Na 2 B 4 O 7 ·10H 2 O. Sodium borate can be obtained in high purity and so can be used to make a standard solution in ...