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Gadolinium oxide research library

A curated starting set of authoritative databases, current supplier specifications and peer-reviewed reviews. Links are selected to support the technical claims made across this site.

Reviewed: 6 September 2026 · Source-linked technical synthesis

Reference principles

We distinguish between (1) identity/database facts, (2) supplier specification values, and (3) research findings. A supplier density or melting-point value is labeled as representative; application claims are tied to peer-reviewed literature; safety references point back to a current SDS.

Core references

  1. PubChem. “Gadolinia / Gadolinium oxide (Gd₂O₃), CID 159427.” Molecular formula, molecular weight, identifiers and safety data. pubchem.ncbi.nlm.nih.gov.
  2. NIST Chemistry WebBook. “digadolinium trioxide.” Formula, molecular weight and CAS Registry Number. webbook.nist.gov.
  3. NIST Center for Neutron Research. “Neutron Scattering Lengths and Cross Sections.” Includes absorption cross sections for ¹⁵⁵Gd and ¹⁵⁷Gd. ncnr.nist.gov.
  4. U.S. Geological Survey. Mineral Commodity Summaries 2026 - Rare Earths. Supply and end-use context for rare-earth materials. usgs.gov.
  5. Thermo Fisher Scientific Chemicals. Gadolinium(III) oxide product specifications and SDS, CAS 12064-62-9. thermofisher.com.
  6. American Elements. Gadolinium oxide technical data including density and melting point. americanelements.com.
  7. Recent Progress in Gd-Containing Materials for Neutron Shielding Applications: A Review. Open-access review discussing Gd₂O₃ in glass, polymers, concrete and metals. PMC.
  8. Review on the synthesis, structural and photo-physical properties of Gd₂O₃ phosphors for various luminescent applications. Optik. ScienceDirect.
  9. Current Status and Future Aspects of Gadolinium Oxide Nanoparticles as Positive MRI Contrast Agents. Nanomaterials (2025). Research context and clinical-translation caveats. MDPI.
  10. Atomic Layer Deposition of Gd₂O₃ and Dy₂O₃. Chemistry of Materials. Thin-film structure and electrical-property research. ACS Publications.

2026 rare-earth supply context

The U.S. Geological Survey’s 2026 Mineral Commodity Summary reports that rare-earth materials serve end uses including catalysts, magnets, batteries, ceramics and glass, metallurgical applications/alloys and polishing. Gadolinium oxide is a specialty material within that broader rare-earth supply chain; availability, pricing and geopolitics can therefore move independently of a single end application.

How to use this library

For a purchase decision, start with supplier specification and COA. For a safety decision, start with the current SDS. For a scientific claim, open the primary paper or review and inspect the actual composition, test method and uncertainty. Do not transfer a result from one grade, morphology or matrix to another without validation.