Boron Trioxide (CAS 1303-86-2)

Molecular structure

Chemical Product

BORON TRIOXIDE

Cat. NoKC.210160 CategoryOxides Molecular FormulaB2O3 CAS1303-86-2 Molecular Weight69.63 g/mol

Pack sizes 250GM1KG

Safety & Hazards (GHS) Danger

Health hazard

⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).

RN given refers to B2O3

Used to produce elemental boron, heat-resistant glass, fire-resistant paint, electronics, and herbicides; Derived by heating boric acid; [Hawley]
Semiconductor Manufacturing [Category: Industry]
Glass Manufacturing [Category: Industry]
Used in herbicides; fire resistant additive for paints, electronics; liquid encapsulation techniques

Physical Description	Boron oxide appears as colorless, semi-transparent glassy lumps or hard white odorless crystals. Mp 450 °C; bp: 1860 °C. Density: 2.46 g cm-3. Moderately soluble in water. Used as an insecticide; a…
Color/Form	Colorless, brittle, vitreous, semitransparent lumps or hard, white crystals
Odor	Odorless
Melting Point	842 °F (NIOSH, 2024)
Boiling Point	3380 °F at 760 mmHg (NIOSH, 2024)
Density	2.46 (NIOSH, 2024) - Denser than water; will sink
Solubility	3 % (NIOSH, 2024)
Vapor Pressure	0 mmHg (approx) (NIOSH, 2024)
Refractive Index	INDEX OF REFRACTION: 1.61
Stability/Shelf Life	Keep dry

IUPAC Name	2,4,5-trioxa-1,3-diborabicyclo[1.1.1]pentane
Molecular Formula	B2O3
Molecular Weight	69.63 g/mol
CAS	1303-86-2
SMILES	B12OB(O1)O2
InChIKey	RPPTVYMVSNHGRG-UHFFFAOYSA-N
Catalog No	KC.210160
Pack sizes	250GM · 1KG

⚠️ For information only; not a substitute for the official SDS.