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VWR Orthoboric acid 99.8-100.5%, AnalaR NORMAPUR® analytical reagent
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Specifications:
| Application | Analytical Chemistry | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Crystals |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | Formula | B(OH)₃ |
VWR Orthoboric Acid is a high-purity analytical reagent (AR) with an assay of 99.8–100.5%, conforming to the AnalaR NORMAPUR® quality standard. This crystalline solid is commonly used as a buffering agent, preservative, and in chemical synthesis, especially where precise control of pH or boron concentration is required.
Manufactured to meet rigorous analytical performance demands, this reagent is suitable for use in analytical chemistry, pharmaceuticals, and materials science.
Chemical and Physical Properties
| Property | Value |
|---|---|
| Chemical Formula | B(OH)₃ |
| CAS Number | 10043-35-3 |
| EC Number (EINECS) | 233-139-2 |
| Molecular Weight | 61.83 g/mol |
| Purity Range | 99.8 – 100.5% |
| Melting Point | 160 °C |
| Boiling Point | 185 °C (at 1013 hPa) |
| Density | 1.44 g/cm³ (25 °C) |
| REACH Registration | 01-2119486683-25 |
| Hazard Classification | GHS08 – Health hazard |
| Storage Temperature | Ambient |
| Merck Index | 13,01326 |
| MDL Number | MFCD00011337 |
Packaging Options
| Catalog Number | Pack Type | Pack Size |
|---|---|---|
| 20185.260 | Plastic bottle (solids) | 500 g |
| 20185.297 | Plastic bottle (solids) | 1 kg |
| 20185.360 | Plastic bottle (solids) | 5 kg |
| 20185.460 | Cardboard carton | 25 kg |
Applications
- Preparation of buffer solutions and reagent formulations
- Boron source in chemical and materials synthesis
- Use in metallurgy, ceramics, and flame retardants
- Analytical testing and quality control workflows
- Antiseptic in pharmaceutical and ophthalmic products (as regulated)
Safety and Handling
- Classified under GHS08 (Health hazard) – handle with care
- Avoid inhalation and direct skin/eye contact
- Store in dry, cool, and well-ventilated areas
- Refer to the SDS for complete handling, hazard, and disposal guidance
VWR Orthoboric Acid 99.8–100.5%, AnalaR NORMAPUR® provides reliable, high-purity boric acid suitable for demanding analytical and research applications. Its consistent quality and chemical stability make it a trusted choice in scientific, industrial, and pharmaceutical laboratories.
- Pack Size: 1kg 500g Cardboard carton, 25kg Plastic bottle, 5kg