Sodium Metaperiodate
Sodium Periodate, Periodic acid sodium salt.
- CAS
- 7790-28-5
- EC
- 232-197-6
- Sectors
- Pharma & Healthcare, Textiles, Leather & Paper
Sodium Metaperiodate (CAS 7790-28-5) is a high-purity inorganic salt and powerful oxidizing agent in the form of a white crystalline powder with a 99% min assay, used as a selective oxidant in organic synthesis and in diagnostic reagent preparation. It is a critical reagent in organic synthesis for the selective oxidation of vicinal diols into aldehydes.
This crystalline solid features a 99% min assay and is widely used in the clinical and pharmaceutical sectors. It is essential for the activation of polysaccharides and the production of specialized diagnostic reagents.
In industrial applications, it serves as an effective etchant and stripper for screen printing emulsions. Its high oxidizing potential allows for the rapid and clean removal of polymer coatings from mesh surfaces.
Typical Properties
| Molecular formula | HIO4.Na |
|---|---|
| Molecular weight | 213.89 g/mol |
| Appearance | white powder |
| Form | Solid |
| Color | White to almost white |
| Odor | Odorless |
| Melting point | 300 °C (dec.) |
| Boiling point | 300°C |
| Density | 3.86 g/cm³ (solid) |
| Water solubility | 80 g/L (20 °C) |
| pH | 3.5-5.5 (25°C, 0.5M in H2O) |
| GHS signal word | Danger · Oxidizing, Corrosive, Acute toxicity, Irritant / harmful, Health hazard, Environmental hazard |
| HS code | 28299080 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Sodium Metaperiodate
Applications
- Organic Synthesis: Used as a selective oxidant to cleave carbon-carbon bonds in sugars and other polyols.
- Screen Printing: Acts as a primary reclaimer to dissolve photo-emulsions from screens after the printing process.
- Medical Diagnostics: Utilized in the preparation of antibodies and for staining tissues in histopathology.
Safety & Risks
Classified as an Oxidizer (Category 2) and Acute Toxic. Store away from combustible materials; wear Acid-Resistant Gloves and Safety Goggles.
Packaging
Supplied in 25 kg Fiber Drums or 50 kg Plastic Drums with moisture-proof liners.