Disodium octaborate
Repeating asymmetrical unit in α-Na2B8O13 | |
| Names | |
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| IUPAC name
Disodium;(9,11-dioxido-5-oxoboranyloxy-2,4,6,8,10,12,13-heptaoxa-1,3,5,7,9,11-hexaborabicyclo[5.5.1]tridecan-3-yl)oxy-oxoborane | |
| Other names
Sodium octaborate | |
| Identifiers | |
3D model (JSmol) |
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| ECHA InfoCard | 100.114.740 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| Na2B8O13 | |
| Molar mass | 340.45 g·mol−1 |
| Appearance | Colorless crystals |
| 9.5 g/(100 g) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
| Names | |
|---|---|
Other names
| |
| Identifiers | |
3D model (JSmol) |
|
| ECHA InfoCard | 100.114.740 |
| EC Number |
|
PubChem CID |
|
| UNII | |
CompTox Dashboard (EPA) |
|
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| Properties | |
| Na2B8O13·4H2O | |
| Molar mass | 412.5270 g/mol |
| Appearance | white powder |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Disodium octaborate is a borate of sodium, a chemical compound of sodium, boron, and oxygen — a salt with elemental formula Na2B8O13 or (Na+)2[B8O13]2−, also written as Na2O·4B2O3. It is a colorless crystalline solid, soluble in water.
Disodium octaborate is traded either as a liquid concentrate, or as the tetrahydrate Na2B8O13·4H2O, a white odorless powder. It is used as an insecticide, and as a fungicide and algicide, and as a fire retardant., and as a boron micronutrient additive in fertilizers. Trade names include Bora-Care, Borathor, Termite Prufe, Board Defense, Polybor, Tim-bor, Mr Dotty 008, and Can-Bor.