Osmic acid, AR ≥99.9%
Order Osmic acid, AR ≥99.9% (CAS 20816-12-0) online at Zemixal: O4Os, COA and SDS with every lot, worldwide shipping. Packs from 1 g.
About Osmic acid, AR ≥99.9%
Osmic acid, AR ≥99.9% is part of the Zemixal precious Metal Salts & Compounds range. Identity at a glance (AR): CAS 20816-12-0, formula O4Os and molar mass 254.2 g/mol.
Common uses in the lab and plant
- Materials research
- Chemical synthesis
Safe handling
Hazard communication follows GHS (Danger: H300, H310, H314 and H330). Our SDS lists exposure controls and first-aid measures.
Order it in 1 g and 5 mL packs or ask for a bulk quotation. You receive a batch certificate of analysis and a 16-section SDS with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Typical uses
- Materials research
- Chemical synthesis
Applications
Grade guides
Specifications and identifiers
| Product name | Osmic acid, AR ≥99.9% |
|---|---|
| Catalogue number | ZX-037168 |
| CAS number | 20816-12-0 |
| IUPAC name | tetraoxoosmium |
| Molecular formula | O4Os |
| Molar mass | 254.2 g/mol |
| Exact mass | 255.9411 |
| Grade | AR |
| Purity / assay | ≥99.9% |
| H-bond donors / acceptors | 0 / 4 |
| Topological polar surface area | 68.3 Ų |
| HS code | 28439019 |
| InChIKey | VUVGYHUDAICLFK-UHFFFAOYSA-N |
| SMILES | O=[Os](=O)(=O)=O |
| PubChem CID | 30318 |
| Synonyms | Osmium tetraoxide, Perosmic oxide, Osmium(VIII) oxide, Osmic acid anhydride, Perosmic acid anhydride, Osmium oxide (OsO4), (T-4)-, Acid, Osmic, Tetroxide, Osmium, Osmium oxide, (T-4)-, Osmium(VIII)oxide, Osmiumtetroxide |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Danger
- H300Fatal if swallowed
- H310Fatal in contact with skin
- H314Causes severe skin burns and eye damage
- H330Fatal if inhaled
Precautionary statements P260, P262, P264, P270, P271, P280, P284, P301 + P316, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P320, P321, P330, P361 + P364, P363, P403 + P233, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 1 g | Quoted on request | |
| 5 mL | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Osmic acid, AR ≥99.9%
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Other grades with CAS 20816-12-0
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