B0394

Acide borique

ACS reagent, ≥99.5%

• Formule linéaire : H₃BO₃
• CAS Number: 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

Propriétés

• 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)
• Essai: ≥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 (PO₄^3-): ≤0.001%; sulfate (SO₄^2-): ≤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

Description

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.

Informations sur la sécurité

• Pictogrammes: GHS08
• Mention d'avertissement: Danger
• Mentions de danger: H360FD
• Conseils de prudence: P201 - P202 - P280 - P308 + P313 - P405 - P501
• 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