Ultra-high purity sulfur ingot & lump
Formula: S · SKU: CRM-S-1237 · CAS: 7704-34-9
CRM produces ultra-high purity Ultra-High Purity Sulfur Ingot & Lump (CAS: 7704-34-9) refined via multi-pass zone refining, vacuum distillation, and electron-beam melting. Controlled trace metallic and gaseous impurity profiles (4N5 (99.995%), 5N (99.999%), 6N (99.9999%)) ensure reproducible electrical, thermal, and metallurgical performance for demanding research and industrial applications. Available in standard and custom geometries
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(Zone-Refined Crystalline Ingot; Vacuum-Distilled Crystalline Lumps / Dendrites; 50 g – 5 kg Argon-Backfilled Vacuum Packaging), cleanroom double-vacuum packed or argon-ampoule sealed with batch GDMS Certificate of Analysis.
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 | S |
|---|---|
| Product code | CRM-S-1237 · CAS 7704-34-9 |
| Product type | Ingots, rods & pieces |
| Material family | Elemental materials |
| Elements | S ↗ |
| Purity grades | 4N5 (99.995%), 5N (99.999%), 6N (99.9999%) |
|---|---|
| Listed forms | Zone-refined crystalline ingot · Vacuum-distilled crystalline lumps / dendrites · 50 g – 5 kg argon-backfilled vacuum packaging |
| Reference starter spec | Quote on Request (RFQ) · Standard 100 g high-purity research specimen lot |
| Application guidance | Superalloy & specialty master alloy vacuum melting feedstock; MBE (Molecular Beam Epitaxy) effusion cell sources & crystal growth; Semiconductor packaging, precision foil/wire interconnects & calibration standards; Fundamental physics, cryogenic superconductor & catalysis laboratories |
For multi-element alloys and compounds, please specify whether composition ratios are in atomic percent (at%) or weight percent (wt%).