B7901

Acide borique

suitable for electrophoresis, ≥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 : 24892029
• Nomenclature NACRES : NA.25

Propriétés

• Pression de vapeur: 2.6 mmHg ( 20 °C)
• Pureté: ≥99.5%
• Forme: powder
• Technique(s): electrophoresis: suitable
• Impuretés: ≤0.005% Insoluble in methanol
• pH: 8.2-10.1
• Pf: 160 °C (dec.) (lit.)
• Solubilité: H₂O: 40 mg/mL, clear, colorless
• Densité: 1.43 g/cm³ at 20 °C
• 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 (as Pb): ≤0.001%
• Adéquation: suitable for electrophoresis (as a reagent)
• 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 acid and is widely used in multi-purpose solutions (MPS) as a buffering agent. It is less toxic and non-volatile in nature.

Application

Boric acid has been used as a component of tris borate buffer:

• for native polyacrylamide gel electrophoresis (PAGE) and denaturing urea-PAGE of tRNA samples(80)
• for urea-polyacrylamide electrophoresis of RNA samples(81)
• for agarose gel electrophoresis of DNA samples(82)

Actions biochimiques/physiologiques

Boric acid is used in the periodontal therapy as an irrigation solution as it elicits bactericidal effects in microbial biofilms in root canal. Boric acid may favor osteoblastic activity and inhibit bone loss. It inhibits Candida albicans fungal infection and has potential to treat vaginal infection.

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: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials 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