Disodium octaborate

Disodium octaborate tetrahydrate
Names
	Other names Aquabor; Boron sodium oxide; Polybor; Sodium octaborate; Tim-bor insecticide;
Identifiers
CAS Number	12280-03-4 ;
3D model (JSmol)	Interactive image;
ECHA InfoCard	100.114.740
EC Number	602-894-3;
PubChem CID	90478478;
UNII	U2EEC8170G;
CompTox Dashboard (EPA)	DTXSID1034391;
	InChI InChI=1S/B8O13.2Na.4H2O/c9-1-13-5-18-6(14-2-10)20-8-17-4(12)15-3(11)16-7(19-5)21-8;;;;;;/h;;;41H2/q-2;2+1;;;; Key: RDMZIKMKSGCBKK-UHFFFAOYSA-N;
	SMILES B(=O)OB1OB2OB(OB(OB(O2)OB(O1)OB=O)[O-])[O-].O.O.O.O.[Na+].[Na+];
Properties
Chemical formula	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). verify (what is ?) Infobox references

Disodium octaborate
	; Repeating asymmetrical unit in α-Na2B8O13
Names
	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
CAS Number	12008-41-2;
3D model (JSmol)	Interactive image;
ECHA InfoCard	100.114.740
EC Number	234-541-0;
PubChem CID	90479350;
CompTox Dashboard (EPA)	DTXSID1034391 ;
	InChI InChI=1S/B8O13.2Na/c9-1-13-5-18-6(14-2-10)20-8-17-4(12)15-3(11)16-7(19-5)21-8;;/q-2;2*+1 Key: CGCGPGRQKOPVHP-UHFFFAOYSA-N;
	SMILES B(=O)OB1OB2OB(OB(OB(O2)OB(O1)OB=O)[O-])[O-].[Na+].[Na+];
Properties
Chemical formula	Na2B8O13
Molar mass	340.45 g·mol−1
Appearance	Colorless crystals
Solubility in water	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

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, and Can-Bor.

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