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VWR Sodium metaarsenite ≥98%, GPR RECTAPUR®
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Formula: NaAsO₂
CAS Number: 7784-46-5
Specifications:
| Application | Analytical Chemistry | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Powder |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | Formula | NaAsO₂ |
High-Purity Inorganic Arsenic Compound for Specialized Analytical and Industrial Use
VWR Sodium Metaarsenite (NaAsO₂), GPR RECTAPUR® grade, is a high-purity, highly toxic arsenic-based compound used in specialized chemical synthesis, inorganic analysis, and metallurgical processing. With an assay of ≥98%, it meets the high standards required in controlled laboratory and industrial environments.
This reagent is extremely hazardous and classified as both toxic and environmentally dangerous, and must be handled under strict regulatory and safety guidelines. It is not intended for food, pharmaceutical, or general laboratory use.
Product Specifications
| Property | Value |
|---|---|
| Product Name | Sodium Metaarsenite |
| Grade | GPR RECTAPUR® |
| Chemical Formula | NaAsO₂ |
| Molecular Weight | 129.91 g/mol |
| CAS Number | 7784-46-5 |
| MDL Number | MFCD00003472 |
| Merck Index Number | 13,08651 |
| EINECS Number | 232-070-5 |
| UN Number | UN2027 |
| ADR Classification | Class 6.1 (Toxic), Packing Group II |
| GHS Classification | GHS06 (Toxic), GHS09 (Environmental Hazard) |
| Melting Point | 615 °C |
| Density (20 °C) | 1.87 g/cm³ |
| Physical Form | White crystalline powder |
| Storage Temperature | Ambient |
Packaging
| Catalog Number | Pack Type | Pack Size |
|---|---|---|
| 27687.265 | Plastic bottle (solid) | 500 g |
Applications
- Specialized analytical chemistry involving arsenic detection or complex formation
- Metal finishing and surface treatment in industrial processes
- Chemical intermediate in controlled synthesis
- Reagent in toxicological and inorganic studies (research-only)
- Used in geochemical or mineral assay laboratories
Safety and Handling
- Highly toxic — fatal if swallowed, inhaled, or absorbed through skin
- Environmental hazard — very toxic to aquatic life with long-lasting effects
- Handle only in certified chemical fume hoods
- Use full PPE: lab coat, nitrile gloves, goggles or face shield
- Store in a secure, labeled container away from incompatible substances
- Strict waste disposal procedures must be followed
- Refer to SDS for complete hazard classification and handling protocol
VWR Sodium Metaarsenite ≥98%, GPR RECTAPUR® is a high-risk, high-purity arsenic-based reagent intended for use in regulated industrial and research applications where arsenite functionality is required. Its use is strictly limited to trained personnel in controlled and compliant facilities.