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Sodium tetrahydroxyborate is a salt (ionic compound) of with chemical formula Na H 4 B O 4 or Na + [B(OH) 4] −. It is one of several sodium borates . At room temperature it is a colorless crystalline solid.
Tetrahydroxyborate is an inorganic anion with the chemical formula [BH 4 O 4] − or [B(OH) 4] −. It contributes no colour to tetrahydroxyborate salts. It is found in the mineral hexahydroborite, Ca(B(OH) 4) 2 · 2 H 2 O, originally formulated CaB 2 O 4 · 6 H 2 O. [2] It is one of the boron oxoanions, and acts as a weak base.
In 1905, Burgess and Holt observed that fusing mixtures of boric oxide B 2 O 3 and sodium carbonate Na 2 CO 3 yielded on cooling two crystalline compounds with definite compositions, consistent with anhydrous borax Na 2 B 4 O 7 (which can be written Na 2 O·2B 2 O 3) and sodium octaborate Na 2 B 8 O 13 (which can be written Na 2 O·4B 2 O 3). [6]
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 ...
Sodium borohydride, also known as sodium tetrahydridoborate and sodium tetrahydroborate, [5] is an inorganic compound with the formula Na B H 4 (sometimes written as Na[BH 4]). It is a white crystalline solid, usually encountered as an aqueous basic solution. Sodium borohydride is a reducing agent that finds application in papermaking and dye ...
Pages in category "Sodium compounds" The following 182 pages are in this category, out of 182 total. ... Sodium tetrahydroxyborate; Sodium tetraphenylborate; Sodium ...
Sodium borate is a generic name for any salt of sodium with an anion consisting of boron and oxygen, and possibly hydrogen, or any hydrate thereof. It can be seen as a hydrated sodium salt of the appropriate boroxy acid , although the latter may not be a stable compound.
Ball-and-stick model of the tetrahydroborate anion, [BH 4] −. Borohydride refers to the anion [B H 4] −, which is also called tetrahydridoborate, and its salts. [1] Borohydride or hydroborate is also the term used for compounds containing [BH 4−n X n] −, where n is an integer from 0 to 3, for example cyanoborohydride or cyanotrihydroborate [BH 3 (CN)] − and triethylborohydride or ...