1.00156

Boric acid

crystalline, EMPROVE^® ESSENTIAL, Ph. Eur., BP, JP, NF

• Synonym(s): Orthoboric acid, Trihydroxidoboron
• Linear Formula: H₃BO₃
• CAS Number: 10043-35-3
• Molecular Weight: 61.83
• MDL number: MFCD00011337
• EC Index Number: 233-139-2

Properties

• Quality Level: 500
• Agency: BP; JP; NF; Ph. Eur.
• vapor pressure: 2.6 mmHg ( 20 °C)
• product line: EMPROVE^® ESSENTIAL
• assay: 99.5-100.5% dry basis (alkalimetric)
• form: crystalline; solid
• pH: 3.8-4.8 (20 °C, 33 g/L in H₂O)
• mp: 160 °C (dec.) (lit.)
• solubility: 49.2 g/L
• density: 1.489 g/cm³ at 23 °C
• anion traces: sulfate (SO₄^2-): ≤0.04%
• cation traces: As: ≤0.0005%; heavy metals (as Pb): ≤0.0010%
• application(s): liquid formulation; ophthalmics; pharmaceutical; semi-solid formulation
• storage temp.: 2-30°C
• SMILES string: OB(O)O
• InChI: 1S/BH3O3/c2-1(3)4/h2-4H
• Inchi Key: KGBXLFKZBHKPEV-UHFFFAOYSA-N

Description

General description

Finding the right excipient that matches your needs as well as regulatory demands can be a complicated challenge in formulation. With our application know-how and regulatory expertise, we support you in every step of development, scale-up, and production.
As part of our Emprove^® Program, our raw materials are offered with extensive documentation facilitating compliance of your pharma and biopharma product, full supply chain transparency and risk mitigation. Our SAFC^® portfolio of high-quality products for biopharmaceutical and pharmaceutical formulation and production withstands strict quality control procedures and is produced according to applicable cGMP guidelines.

Application

Boric acid has antimicrobial characteristics and is therefore typically used as preservative in pharmaceutical formulations and cosmetics. It is also used as buffering agent and pH adjuster.

Legal Information

Emprove is a registered trademark of Merck KGaA, Darmstadt, Germany

SAFC is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Pictograms: GHS08
• Signal Word: Danger
• Hazard Statements: H360FD
• Precautionary Statements: P201 - P202 - P280 - P308 + P313 - P405 - P501
• Hazard Classifications: Repr. 1B
• Storage Class Code: 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 1