339075
Boric anhydride
99.98% trace metals basis
Synonym(s):
Boron trioxide
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About This Item
Empirical Formula (Hill Notation):
B2O3
CAS Number:
Molecular Weight:
69.62
PubChem Substance ID:
eCl@ss:
38120103
UNSPSC Code:
12352300
NACRES:
NA.21
EC Number:
215-125-8
MDL number:
Assay:
99.98% trace metals basis
Form:
powder
vapor density
>1 (vs air)
Quality Segment
description
for inorganic trace analysis
assay
99.98% trace metals basis
form
powder
mp
450 °C (lit.)
density
2.46 g/mL at 25 °C (lit.)
SMILES string
O=BOB=O
InChI
1S/B2O3/c3-1-5-2-4
InChI key
JKWMSGQKBLHBQQ-UHFFFAOYSA-N
Application
Boric anhydride in sulfuric acid may be used as a scrubber to remove the hydrogen fluoride gas formed as a byproduct during the selective reduction of ketones to hydrocarbons using triethylsilane and boron trifluoride. In combination with hydroxyapatite, it may be used to catalyze the vapor-phase Beckmann rearrangement process to form nylon-6.
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signalword
Danger
hcodes
Hazard Classifications
Repr. 1B
Storage Class
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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