Tetrahydroxyborate

Tetrahydroxyborate
Names
	IUPAC name Tetrahydroxyborate
	Systematic IUPAC name Tetrahydroxyboranuide; Tetrahydroxidoborate(1-)
Identifiers
CAS Number	15390-83-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:41132 ;
ChEMBL	ChEMBL1231419 ;
ChemSpider	154612 ;
Gmelin Reference	1966
PubChem CID	177595;
CompTox Dashboard (EPA)	DTXSID60934872 ;
	InChI InChI=1S/BH4O4/c2-1(3,4)5/h2-5H/q-1 Key: KCFLOKKYWBPKFN-UHFFFAOYSA-N ;
	SMILES O[B-](O)(O)O;
Properties
Chemical formula	[H4BO4]−
Molar mass	78.840 g mol−1
	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

Tetrahydroxyborate is an inorganic anion with the chemical formula [BH₄O₄]⁻ or [B(OH)₄]⁻. It contributes no colour to tetrahydroxyborate salts. It is found in the mineral hexahydroborite, Ca(B(OH)₄)₂ · 2 H₂O, originally formulated CaB₂O₄ · 6 H₂O. It is one of the boron oxoanions, and acts as a weak base. The systematic names are tetrahydroxyboranuide (substitutive) and tetrahydroxidoborate(1−) (additive). It can be viewed as the conjugate base of boric acid.