Trisodium orthoborate

Trisodium orthoborate
Names
	IUPAC name Trisodium orthoborate
	Other names Sodium, boric acid salt; Sodium orthoborate; Sodium borate;
Identifiers
CAS Number	14312-40-4 ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL38909 ;
ChemSpider	140167 ;
Gmelin Reference	117865
PubChem CID	159383;
CompTox Dashboard (EPA)	DTXSID1049776 ;
	InChI InChI=1S/BO3.3Na/c2-1(3)4;;;/q-3;3*+1 Key: BSVBQGMMJUBVOD-UHFFFAOYSA-N ;
	SMILES B([O-])([O-])[O-].[Na+].[Na+].[Na+];
Properties
Chemical formula	Na3BO3
Molar mass	127.78 g·mol−1
Density	1.73 g/cm3
Melting point	75 °C (167 °F; 348 K)
Boiling point	320 °C (608 °F; 593 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H319, H360, H361d, H412
Precautionary statements	P203, P264+P265, P273, P280, P305+P351+P338, P318, P337+P317, P405, P501
Related compounds
Related compounds	Borax; Sodium pentaborate; Disodium octaborate; Disodium enneaborate; Sodium metaborate;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Trisodium borate is a chemical compound of sodium, boron, and oxygen, with formula Na₃BO₃, or (Na⁺)₃[BO₃]³⁻. It is a sodium salt of the orthoboric acid B(OH)₃.

The compound is also called trisodium orthoborate, sodium orthoborate, or just sodium borate. However, "sodium orthoborate" has been used also for a compound with formula Na₄B₂O₅, which would correspond to an equimolar mixture of sodium metaborate NaBO₂ and trisodium borate proper. and "sodium borate" is sometimes used in the generic sense, for a sodium salt with any of several other borate anions.

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