Boric acid (CAS: 10043-35-3) is an inorganic crystalline compound (H₃BO₃) widely used in laboratories and industrial R&D. It appears in several physical forms, most commonly as flakes and chunks. The chemical properties remain the same, but the physical format can influence solubility rates, handling, and specific laboratory applications.
CristalChem supplies Boric Acid Flake & Chunk – buy now at CristalChem with safe worldwide delivery to Ireland, UK, Canada, Australia, Spain, New Zealand, Germany, Sweden, Belgium, France, Latvia and the Netherlands.
| Parameter | Value |
|---|---|
| Chemical formula | H₃BO₃ |
| Molecular weight | 61.83 g/mol |
| CAS number | 10043-35-3 |
| Appearance | White crystalline flakes or chunks |
| Melting point | 170.9 °C (decomposes) |
| Solubility | Soluble in water, alcohol, glycerol |
The boric acid flakes dissolve more quickly in water, making them ideal for analytical chemistry, buffer solutions and lab-scale reactions.
Boric acid chunks are slower to dissolve and are preferred for controlled release in long-term experimental setups or industrial simulations.
For related reagents see:
Boric acid is classified as a Substance of Very High Concern (SVHC) due to Repr. 1B classification. It remains legal for laboratory and research use with appropriate SDS documentation.
Requires WHMIS-compliant SDS (Canada) and Safe Work Australia compliance.
CristalChem exports boric acid crystalline reagent worldwide, including Ireland, Spain, Germany, France, Sweden, Belgium, Netherlands, Latvia and New Zealand.
➡ PubChem – Boric Acid
➡ ChemSpider – Boric Acid
➡ NIST Chemistry WebBook – Boric Acid
➡ ChEBI – Boric Acid
➡ ECHA – Substance Info Boric Acid
CristalChem ensures safe worldwide delivery with all compliance and documentation.
🧪 Lab demo:
Heat a small amount of boric acid on a platinum wire and observe the green flame test caused by volatile boron compounds – a classic identification reaction.
💡 Scientific curiosity:
Boric acid is mildly tribasic. In aqueous solution, it behaves not as a proton donor but as a Lewis acid, accepting hydroxyl groups.
💡 Practical tip:
Use flakes when faster dissolution is required; choose chunks for slow-release conditions. Always store in sealed containers to avoid caking from humidity.
💡 Extra fact:
In crystal form, boric acid has layered sheets linked by hydrogen bonds. This structure explains its unique lubrication properties, sometimes studied in materials science.
Yes, boric acid crystalline reagent is legal for laboratory and R&D use, with correct SDS documentation.
You can buy boric acid flake or chunk online at CristalChem in packs from 100 g to 25 kg.
➡ Boric Acid Flake & Chunk – buy now at CristalChem
Yes, CristalChem supplies boric acid Ireland, boric acid UK, boric acid Canada and boric acid Australia, with safe worldwide delivery.
Boric acid (CAS: 10043-35-3) is a versatile crystalline reagent available in both flake and chunk forms. With applications in analytical chemistry, materials research and buffer systems, it remains a key R&D material.
CristalChem offers boric acid flakes and chunks with guaranteed safe worldwide delivery to Ireland, UK, EU, Canada, Australia and beyond.
➡ Boric Acid Flake & Chunk – buy now at CristalChem
Chemical Research Writer at CristalChem Academy. Passionate about chemistry, R&D, and turning laboratory insights into global wellness and industrial innovations.
