B6768

Acide borique

BioReagent, for molecular biology, suitable for cell culture, suitable for plant cell culture, ≥99.5%

• Formule linéaire : H₃BO₃
• Numéro CAS: 10043-35-3
• Poids moléculaire : 61.83
• Numéro CE : 233-139-2
• Numéro MDL: MFCD00011337
• Code UNSPSC : 12161700
• eCl@ss : 38120104
• ID de substance PubChem : 24891821
• Nomenclature NACRES : NA.25

Propriétés

• Qualité: for molecular biology
• Niveau de qualité: 200
• Pression de vapeur: 2.6 mmHg ( 20 °C)
• Gamme de produits: BioReagent
• Pureté: ≥99.5%
• Forme: powder
• Technique(s): cell culture | mammalian: suitable; cell culture | plant: suitable
• pH: 5.1 (25 °C, 1.8 g/L)
• Pf: 160 °C (dec.) (lit.)
• Solubilité: water: 40 mg/mL, clear, colorless
• Densité: 1.49 g/cm³ at 23 °C
• Traces de cations: Fe: ≤5 ppm; Mg: ≤5 ppm; heavy metals (as Pb): ≤10 ppm
• Absorption UV: λ: 260 nm A_max: 0.05; λ: 280 nm A_max: 0.05
• Activité étrangère: DNase, RNase, and protease, none detected
• Température de stockage: room temp
• 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 reacts reversibly with alcohols. It is used in dermal and women′s hygiene products due to its mild antibacterial and antifungal effects. Boric acid is used as a buffer in ophthalmic products. It acts as an effective solid lubrication agent because of its molecular structure. Boric acid finds its applications in glass making, fire retardant. Boric acid is used in biochemistry in buffer solutions. It also forms complex equilibria in solution, with the tetraborate ion (B4O7 2- ) being the predominant species. Borate buffers are involved in discontinuous electrophoresis and capillary electrophoresis systems for the separation of proteins and nucleic acids.

Application

Boric acid has been used:

• to prepare boric buffer for the quantification of primary amine groups at the surface of nanocapsules
• to study its effects on epigenetic change
• for the estimation of protein in wheatgrass using Kjeldahl method

Used to promote amidations of carboxylic acids and amines in catalytic amounts. This technology avoids the requirement of preactivation of the carboxylic acid or use of coupling reagents.
Intensified Azeotropic Distillation: A Strategy for Optimizing Direct Amidation

Caractéristiques et avantages

• Environment-friendly
• Non-toxic 

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
• Équipement de protection individuelle: Eyeshields, Gloves, type P3 (EN 143) respirator cartridges