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Merck
CN

15680

Boric anhydride

purum p.a., ≥97.0% (T)

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
EC Number:
215-125-8
MDL number:
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vapor density

>1 (vs air)

grade

purum p.a.

assay

≥97.0% (T)

loss

≤3% loss on ignition, 900 °C

mp

450 °C (lit.)

density

2.46 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤50 mg/kg, Cd: ≤50 mg/kg, Co: ≤50 mg/kg, Cu: ≤50 mg/kg, Fe: ≤50 mg/kg, K: ≤100 mg/kg, Na: ≤2000 mg/kg, Ni: ≤50 mg/kg, Pb: ≤50 mg/kg, Zn: ≤50 mg/kg

SMILES string

O=BOB=O

InChI

1S/B2O3/c3-1-5-2-4

InChI key

JKWMSGQKBLHBQQ-UHFFFAOYSA-N



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pictograms

Health hazard

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

Regulatory Information

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Laurie P Volak et al.
Drug metabolism and disposition: the biological fate of chemicals, 36(8), 1594-1605 (2008-05-16)
Curcuminoid extract and piperine are being evaluated for beneficial effects in Alzheimer's disease, among other intractable disorders. Consequently, we studied the potential for herb-drug interactions involving cytochrome P450 (P450), UDP-glucuronosyltransferase (UGT), and sulfotransferase (SULT) enzymes. The curcuminoid extract inhibited SULT
Crystallization of gels and glasses made from hot-pressed gels.
Phalippou J, et al.
Journal of Non-Crystalline Solids, 48(1), 17-30 (1982)
Anne Soleilhavoup et al.
Magnetic resonance in chemistry : MRC, 48 Suppl 1, S159-S170 (2010-09-08)
Boron-11 and silicon-29 NMR spectra of xSiO(2)-(1-x)B(2)O(3) glasses (x=0.40, 0.80 and 0.83) have been calculated using a combination of molecular dynamics (MD) simulations with density functional theory (DFT) calculations of NMR parameters. Structure models of 200 atoms have been generated