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202851

Sigma-Aldrich

Boric anhydride

99.999% trace metals basis

Sinonimo/i:

Boron trioxide

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About This Item

Formula empirica (notazione di Hill):
B2O3
Numero CAS:
1303-86-2
Peso molecolare:
69.62
Numero CE:
215-125-8
Numero MDL:
MFCD00011315
Codice UNSPSC:
12352300
eCl@ss:
38120103
ID PubChem:
24852124
NACRES:
NA.23

Densità del vapore

>1 (vs air)

Saggio

99.999% trace metals basis

Forma fisica

crystals or chunks

Impiego in reazioni chimiche

reagent type: catalyst
core: boron

Punto di fusione

450 °C (lit.)

Solubilità

ethanol: soluble at 20 °C

Densità

2.46 g/mL at 25 °C (lit.)

Stringa SMILE

O=BOB=O

InChI

1S/B2O3/c3-1-5-2-4
JKWMSGQKBLHBQQ-UHFFFAOYSA-N

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Descrizione generale

Anhydride can be obtained by heating boric acid at temperatures higher than 160oC.1

Applicazioni

Reducing boron anhydride in the presence of sodium yields amorphous boron. Whereas reducing in the presence of aluminum at high temperatures affords crystalline boron. 1

Confezionamento

Packaged in poly bottles

Pittogrammi

Health hazard
GHS08

Avvertenze

Danger

Indicazioni di pericolo

H360FD

Classi di pericolo

Repr. 1B

Codice della classe di stoccaggio

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

dust mask type N95 (US), Eyeshields, Gloves

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Certificati d'analisi (COA)

Lot/Batch Number
MKCQ6519
MKCJ8417
MKCB0246V
MKBV9848V
MKBN7465V

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Jin-Su Nam et al.
Journal of hazardous materials, 172(2-3), 1013-1020 (2009-08-25)
Recently, it was found by the authors of this study that glasses of a special composition have an ability to remove some hazardous ions from waste solutions. In the present study, a SiO(2)-B(2)O(3)-CaO-Na(2)O glass system has been chosen to remove
Ivan Hung et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 197(2), 229-236 (2009-02-10)
Using a two-dimensional multiple-quantum (MQ) double rotation (DOR) experiment the contributions of the chemical shift and quadrupolar interaction to isotropic resonance shifts can be completely separated. Spectra were acquired using a three-pulse triple-quantum z-filtered pulse sequence and subsequently sheared along
G Krishna Kumari et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 101, 140-147 (2012-10-27)
Divalent Mn2+ ions containing 20ZnO+xLi2O+(30-x)K2O+50B2O3(5≤x≤25) mol% glasses are prepared by using melt quench technique and are characterized by several spectroscopic techniques. Various physical parameters are evaluated from the measured values of density and refractive index for the observation of mixed
Ozcan Yalçinkaya et al.
Journal of hazardous materials, 195, 332-339 (2011-09-06)
New nano hybrid material (ZrO(2)/B(2)O(3)) was synthesized and applied as a sorbent for the separation and/or preconcentration of Co(II), Cu(II) and Cd(II) in water and tea leaves prior to their determination by flame atomic absorption spectrometry. Synthesized nano material was
Pengyu Zhang et al.
Chemical communications (Cambridge, England), 46(22), 3988-3990 (2010-04-30)
Al-rich single-crystal mullite [Al(2)(Al(2.8)Si(1.2))O(9.6)] nanowires were prepared by B(2)O(3)-doped molten salts synthesis. The nanowires have diameters in the range 30-50 nm and typical lengths of 1 microm. The mullite nanowires were well dispersed and facile to obtain.
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