ホウ砂

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

Drug data · ChEMBL

Molecule type: Small molecule

via ChEMBL · EBI

Wikidata facts

Subclass of: borate
Has part: sodium
Mass: 201.98116249999998
Image: Tincalconite and Borax - Baker mine, US Borax Mine, Kramer Borate deposit, California, USA.jpg
Has use: food additive

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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
crystal system: monoclinic crystal system
boiling point: 1575

Sources (5)

via Wikidata · CC0

Article · 日本語

ホウ砂（ホウしゃ、硼砂、borax）は、鉱物（ホウ酸塩鉱物）の一種。化学組成は Na2B4O5(OH)4・8H2O（四ホウ酸ナトリウム Na2B4O7 の十水和物）。単斜晶系。モース硬度2.5。比重1.7。水に対する溶解度は4.7g/100mL(20℃)。空気中で風解しやすく、結晶水を失ってチンカルコナイト Na2B4O5(OH)4・3H2O になる。

Abstract from DBpedia / Wikipedia · CC BY-SA

ホウ砂

Chemical data

Drug data · ChEMBL

Wikidata facts

Article · 日本語

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