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B0394

Sigma-Aldrich

Acide borique

ACS reagent, ≥99.5%

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About This Item

Formule linéaire :
H3BO3
Numéro CAS:
10043-35-3
Poids moléculaire :
61.83
Numéro CE :
233-139-2
Numéro MDL:
MFCD00011337
Code UNSPSC :
12352106
eCl@ss :
38120104
ID de substance PubChem :
329773111
Nomenclature NACRES :
NA.21

Qualité

ACS reagent

Niveau de qualité

200

Agence

suitable for SM 4500 - NH3
suitable for SM 5210

Pression de vapeur

2.6 mmHg ( 20 °C)

Pureté

≥99.5%

Forme

powder

Technique(s)

PCR: suitable

Impuretés

≤0.005% Insoluble in methanol
≤0.05% Nonvolatile with methanol

Pf

160 °C (dec.) (lit.)

Solubilité

water: soluble

Densité

1.440 g/cm3

Traces d'anions

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.01%

Traces de cations

Ca: ≤0.005%
Fe: ≤0.001%
heavy metals: ≤0.001% (by ICP)

Chaîne SMILES 

OB(O)O

InChI

1S/BH3O3/c2-1(3)4/h2-4H

Clé InChI

KGBXLFKZBHKPEV-UHFFFAOYSA-N

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Description générale

Boric acid is a weak monobasic Lewis acid(electron pair acceptor), which finds application in the areas of glass making, fire retardant, lubrication agent, buffer, and neutron absorber.

Application

Boric acid can be used as a catalyst to synthesize:
  • N-substituted cinnamamides via amidation reaction between cinnamic acid and benzylamines.
  • β-Aminoalcohols through the regioselective epoxides ring opening with aromatic amines in the presence of glycerol as a co-catalyst.
  • Organosulfur compounds via thia-Michael addition of thiols to α, β-unsaturated compounds.
It can also be used as an activator for the solvent-free reduction of aldehydes and ketones to alcohols in the presence of sodium borohydride.

Pictogrammes

Health hazard
GHS08

Mention d'avertissement

Danger

Mentions de danger

H360FD

Classification des risques

Repr. 1B

Code de la classe de stockage

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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USP

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Jing Li et al.
American journal of physiology. Cell physiology, 306(10), C943-C960 (2014-03-22)
The human solute carrier (SLC26) family of anion transporters consists of 10 members (SLCA1-11, SLCA10 being a pseudogene) that encode membrane proteins containing ~12 transmembrane (TM) segments with putative N-glycosylation sites (-NXS/T-) in extracellular loops and a COOH-terminal cytosolic STAS
Hye Ryeo Lee et al.
Journal of chromatography. A, 1346, 117-122 (2014-05-09)
In liquid phase microextraction, high enrichment factors can be obtained using an acceptor phase of small volume. By hanging an acceptor drop at the separation capillary tip, single drop microextraction (SDME) can be in-line coupled with capillary electrophoresis (CE). The
Debin Wang et al.
ACS nano, 8(8), 7896-7904 (2014-07-16)
Building plasmonic nanostructures using biomolecules as scaffolds has shown great potential for attaining tunable light absorption and emission via precise spatial organization of optical species and antennae. Here we report bottom-up assembly of hierarchical plasmonic nanostructures using DNA origami templates
Albert Serrà et al.
ACS nano, 8(5), 4630-4639 (2014-05-03)
Electrodeposition from microemulsions using ionic liquids is revealed as a green method for synthesizing magnetic alloyed nanoparticles, avoiding the use of aggressive reducing agents. Microemulsions containing droplets of aqueous solution (electrolytic solution containing Pt(IV) and Co(II) ions) in an ionic
Sheng Tang et al.
Journal of chromatography. A, 1373, 31-39 (2014-12-02)
Layered double oxide hollow spheres (LDO-HSs) were synthesized and employed as a dissolvable sorbent in dispersive solid-phase extraction (DSPE) to extract eleven United States Environmental Protection Agency's priority phenols from aqueous samples. With their higher specific surface area, LDO-HSs showed
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