borax

Also known as sodium borate, sodium tetraborate, disodium tetraborate, Na2B4O710H2O, E285, sodium borate decahydrate, disodium tetraborate octahydrate

Borax (also referred to as sodium borate, tincal () and tincar ()) is a salt (ionic compound) normally encountered as a hydrated borate of sodium, with the chemical formula . Borax mineral is a crystalline borate mineral that occurs in only a few places worldwide in quantities that enable it to be mined economically.

AI overview

Borax is a naturally occurring mineral salt made of sodium and borate that is found in only a few locations around the world where it can be mined in economically worthwhile quantities. It has been used for various industrial and household purposes, making it a commercially important mineral resource.

AI-generated from the Wikipedia summary — may contain errors.

Chemical data

Formula: B4Na2O7
Molecular weight: 201.2 g/mol
IUPAC name: disodium;2,4,6,8,9-pentaoxa-1,5-dibora-3,7-diboranuidabicyclo[3.3.1]nonane 3,7-dioxide
SMILES: [B-]1(=O)OB2O[B-](=O)OB(O1)O2.[Na+].[Na+]
InChIKey: UQGFMSUEHSUPRD-UHFFFAOYSA-N
Polar surface area: 80.3 Å²
H-bond donors: 0
H-bond acceptors: 9
Formal charge: 0

via PubChem

Wikidata facts

Mass: 201.98116249999998
Image: Tincalconite and Borax - Baker mine, US Borax Mine, Kramer Borate deposit, California, USA.jpg

Show 11 more facts

Commons category: Borax
canonical SMILES: [Na+].[Na+].[O-]B1OB2OB([O-])OB(O1)O2.O.O.O.O.O.O.O.O.O.O
chemical formula: Na₂B₄O₇·10H₂O
density: 2.37
NIOSH Pocket Guide ID: 0057
melting point: 1366
decomposition point: 2867
vapor pressure: 0
solubility: 4
time-weighted average exposure limit: 1
boiling point: 1575

Sources (5)

via Wikidata · CC0

~17 min read

Article

11 sections

Contents

History
Etymology
Chemistry
Natural sources
Uses
Other
Toxicity
See also
Explanatory footnotes
References
External links

Borax can be dehydrated by heating into other forms with less water of hydration. The anhydrous form of borax can also be obtained from the decahydrate or other hydrates by heating and then grinding the resulting glasslike solid into a powder. It is a white crystalline solid that dissolves in water to make a basic solution due to the tetraborate anion.