trace element boron(3+) 10.812 11.00766 3 boron(3+) boron(3+) ion InChI=1S/B/q+3 cas:22537-21-9 boron(III) cation CHEBI:30168 boron(III) cation B(3+) chebi_ontology B boron(3+) ion FRWDHMWMHYXNLW-UHFFFAOYSA-N Boron, ion(3+) [B+3] boron(3+)