Osmium evaporation pellets
Formula: Os · SKU: CRM-OS-2518 · CAS: 7440-04-2
CRM supplies certified high-purity High Purity Osmium Evaporation Pellets (CAS: 7440-04-2) specifically pre-treated and outgassed for thermal evaporation and electron-beam (E-beam) physical vapor deposition. Synthesized under controlled vacuum atmospheres to achieve uniform stoichiometry and high bulk density, these evaporation starter sources minimize crucible spitting, outgassing, and refractive index drift during thin-film growth. Available
Read the full description
in 4N (99.99%), 5N (99.999%) purity across forms including 1–3 mm Cylindrical Pellets; 3–6 mm Evaporation Granules; Pre-Melted Crucible Starter Source, vacuum-sealed with full batch GDMS/ICP-OES and XRD analytical traceability.
Confirming your specification
Share the impurity limits, dimensional tolerances, backing plate configuration, and analytical reports required for your process. We will confirm the available specification, lead time, and lot documentation with your quotation.
Selected options are carried over to your inquiry list. Choose your quantity and unit above, then specify target dimensions, tolerances, or backing plate preferences on the inquiry page. Mechanical drawings can be sent by email.
Documentation & engineering support
Certificate of Analysis (COA)Request →Safety Data Sheet (SDS)Request →Custom specificationsRequest → Open stoichiometry & target mass calculators Calculators →Material specifications
| Chemical formula | Os |
|---|---|
| Product code | CRM-OS-2518 · CAS 7440-04-2 |
| Product type | Evaporation materials / Crucibles & accessories |
| Material family | Elemental materials |
| Elements | Os ↗ |
| Purity grades | 4N (99.99%), 5N (99.999%) |
|---|---|
| Listed forms | 1–3 mm cylindrical pellets · 3–6 mm evaporation granules · Pre-melted crucible starter source |
| Reference starter spec | Quote on Request (RFQ) · Standard 100 g evaporation pellets / granules pack |
| Application guidance | Optical antireflection (AR), high-reflection (HR) & IR/UV bandpass filters; OLED emissive/transport layers & semiconductor lift-off metallization; Ophthalmic lens coatings, laser mirrors & precision photonics; Aerospace thermal barrier coatings (EB-PVD) & vacuum metallizing |
For multi-element alloys and compounds, please specify whether composition ratios are in atomic percent (at%) or weight percent (wt%).