Gadolinium(III) oxide SDS
Original Acros-Organics safety data sheet for Gadolinium(III) oxide. Original PDF retained without modification. Source collected on 2026-09-13.
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Normalized SDS data & document analysis
RESDS derives the results below from this document’s extracted text and the site’s same-material index. Detected codes are not reclassified. “Not detected” does not mean “not present”; confirm the original PDF for safety-critical use.
GHS & transport evidence
Page links show the first occurrence found in extracted text.
SDS 16-section coverage
15 section headings detected; 1 not detected by the parser.
Normalized physical-property units
Calculated conversions from values detected in this SDS; not independent laboratory measurements.
| Property | SDS value | SI conversion | US conversion |
|---|---|---|---|
| Melting point | 1900 °C | 2173.15 K | 3452.0 °F |
Same-material SDS comparison
22 indexed documents · 13 publishers · 3 languages · 13 stated revisions · page range 3–11. This compares document metadata, not product equivalence.
| Publisher | Revision | Language | Region | Pages |
|---|---|---|---|---|
| Current Acros-Organics | 19-Jan-2018 · Revision 3 | English | United States · OSHA | 6 |
| Alfa-Aesar | 11/24/2015 | English | United States · OSHA; European Union · REACH / CLP; Canada · WHMIS | 4 |
| Angstrom Sciences | 07/09/15 | English | Not stated | 4 |
| Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific) | 24-Jul-2026 | English | United Kingdom | 8 |
| Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific) | 24-Jul-2026 | English | United Kingdom | 8 |
| Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific) | 24-Jul-2026 | English | United Kingdom | 8 |
| Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific) | 24-Jul-2026 | English | United Kingdom | 8 |
| FUJIFILM Wako Pure Chemical Corporation | 04-Feb-2023 · Revision 2.04 | English | Japan | 6 |
Material & document specifications
- Material
- Gadolinium(III) oxide
- Product / grade
- AC315510000; AC315510100; AC315510250; AC315511000
- Publisher
- Acros-Organics
- Region
- United States · OSHA
- File name
- 025_Gadolinium_III_oxide_Acros_Organics_via_chemBlink_EN.pdf
- Document type
- SDS
- CAS reference(s)
- 12064-62-9
- Language
- English
- Original revision
- 19-Jan-2018 · Revision 3
- Pages
- 6
- File size
- 38 KB
- Downloads
- 18
- Date added
- 2026-09-13
Full document text
6 pages · Original document language
Text extracted from the original PDF. Page order and original wording are preserved; tables and symbols may differ from the PDF layout. Check the original PDF for safety-critical details.
Page 1
SAFETY DATA SHEET
Creation Date 26-Sep-2009 Revision Date 19-Jan-2018 Revision Number 3
1. Identification
Product Name Gadolinium(III) oxide
Cat No. : AC315510000; AC315510100; AC315510250; AC315511000
CAS-No 12064-62-9 Synonyms Gadolinium(III)Oxide; Gadolinia; Digadolinium Trioxide
Recommended Use Laboratory chemicals. Uses advised against Not for food, drug, pesticide or biocidal product use
Details of the supplier of the safety data sheet
Company Fisher Scientific Acros Organics One Reagent Lane One Reagent Lane Fair Lawn, NJ 07410 Fair Lawn, NJ 07410 Tel: (201) 796-7100
Emergency Telephone Number For information US call: 001-800-ACROS-01 / Europe call: +32 14 57 52 11 Emergency Number US:001-201-796-7100 / Europe: +32 14 57 52 99 CHEMTREC Tel. No.US:001-800-424-9300 / Europe:001-703-527-3887
2. Hazard(s) identification
Classification This chemical is considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200)
Serious Eye Damage/Eye Irritation Category 2
Label Elements
Signal Word Warning
Hazard Statements Causes serious eye irritation
Precautionary Statements Prevention Wash face, hands and any exposed skin thoroughly after handling
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Page 1 / 6
Page 2
Gadolinium(III) oxide Revision Date 19-Jan-2018 ______________________________________________________________________________________________
Wear eye/face protection Eyes IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing If eye irritation persists: Get medical advice/attention Hazards not otherwise classified (HNOC) None identified
3. Composition/Information on Ingredients
Component CAS-No Weight % Gadolinium oxide (Gd2O3) 12064-62-9 >95
4. First-aid measures
Eye Contact Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Get medical attention.
Skin Contact Wash off immediately with plenty of water for at least 15 minutes. Obtain medical attention.
Inhalation Move to fresh air. If not breathing, give artificial respiration. Obtain medical attention.
Ingestion Do not induce vomiting. Obtain medical attention.
Most important symptoms and No information available. effects Notes to Physician Treat symptomatically
5. Fire-fighting measures
Suitable Extinguishing Media Carbon dioxide (CO 2). Dry chemical. Chemical foam.
Unsuitable Extinguishing Media No information available
Flash Point No information available Method - No information available
Autoignition Temperature Not applicable Explosion Limits Upper No data available Lower No data available Sensitivity to Mechanical Impact No information available Sensitivity to Static Discharge No information available
Specific Hazards Arising from the Chemical Keep product and empty container away from heat and sources of ignition.
Hazardous Combustion Products None known Protective Equipment and Precautions for Firefighters As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear.
NFPA Health Flammability Instability Physical hazards 2 0 1 N/A
6. Accidental release measures
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Page 3
Gadolinium(III) oxide Revision Date 19-Jan-2018 ______________________________________________________________________________________________
Personal Precautions Ensure adequate ventilation. Use personal protective equipment. Avoid dust formation. Environmental Precautions Should not be released into the environment.
Methods for Containment and Clean Sweep up or vacuum up spillage and collect in suitable container for disposal. Avoid dust Up formation.
7. Handling and storage
Handling Ensure adequate ventilation. Wear personal protective equipment. Avoid contact with skin and eyes. Do not breathe dust. Do not ingest. Minimize dust generation and accumulation. Wash hands before breaks and immediately after handling the product.
Storage Keep in a dry, cool and well-ventilated place. Keep container tightly closed. Keep under nitrogen.
8. Exposure controls / personal protection
Exposure Guidelines This product does not contain any hazardous materials with occupational exposure limitsestablished by the region specific regulatory bodies.
Engineering Measures Ensure adequate ventilation, especially in confined areas. Ensure that eyewash stations and safety showers are close to the workstation location.
Personal Protective Equipment
Eye/face Protection Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin and body protection Wear appropriate protective gloves and clothing to prevent skin exposure.
Respiratory Protection No protective equipment is needed under normal use conditions.
Hygiene Measures Handle in accordance with good industrial hygiene and safety practice.
9. Physical and chemical properties
Physical State Powder Solid Appearance White Odor No information available Odor Threshold No information available pH No information available Melting Point/Range 1900 °C / 3452 °F Boiling Point/Range No information available Flash Point No information available Evaporation Rate Not applicable Flammability (solid,gas) No information available Flammability or explosive limits Upper No data available Lower No data available Vapor Pressure No information available Vapor Density Not applicable Specific Gravity No information available Solubility No information available Partition coefficient; n-octanol/water No data available Autoignition Temperature Not applicable Decomposition Temperature No information available Viscosity Not applicable Molecular Formula Gd2 O3
______________________________________________________________________________________________
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Page 4
Gadolinium(III) oxide Revision Date 19-Jan-2018 ______________________________________________________________________________________________
Molecular Weight 362.5
10. Stability and reactivity
Reactive Hazard None known, based on information available
Stability Hygroscopic. Air sensitive.
Conditions to Avoid Exposure to air. Incompatible products. Exposure to moisture. Avoid dust formation.
Incompatible Materials Strong acids, Powdered metals
Hazardous Decomposition Products None under normal use conditions
Hazardous Polymerization No information available.
Hazardous Reactions None under normal processing.
11. Toxicological information
Acute Toxicity
Product Information Component Information Component LD50 Oral LD50 Dermal LC50 Inhalation Gadolinium oxide (Gd2O3) LD50 > 5 g/kg ( Rat ) Not listed Not listed
Toxicologically Synergistic No information available Products Delayed and immediate effects as well as chronic effects from short and long-term exposure
Irritation Irritating to eyes
Sensitization No information available
Carcinogenicity The table below indicates whether each agency has listed any ingredient as a carcinogen.
Component CAS-No IARC NTP ACGIH OSHA Mexico Gadolinium oxide 12064-62-9 Not listed Not listed Not listed Not listed Not listed (Gd2O3) Mutagenic Effects No information available
Reproductive Effects No information available.
Developmental Effects No information available.
Teratogenicity No information available.
STOT - single exposure None known STOT - repeated exposure None known
Aspiration hazard No information available
Symptoms / effects,both acute and No information available delayed
Endocrine Disruptor Information No information available
Other Adverse Effects The toxicological properties have not been fully investigated.
______________________________________________________________________________________________
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Page 5
Gadolinium(III) oxide Revision Date 19-Jan-2018 ______________________________________________________________________________________________
12. Ecological information
Ecotoxicity .
Persistence and Degradability Insoluble in water
Bioaccumulation/ Accumulation No information available.
Mobility Is not likely mobile in the environment due its low water solubility.
13. Disposal considerations
Waste Disposal Methods Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. Chemical waste generators must also consult local, regional, and national hazardous waste regulations to ensure complete and accurate classification.
14. Transport information
DOT Not regulated TDG Not regulated IATA Not regulated IMDG/IMO Not regulated
15. Regulatory information
International Inventories
Component TSCA DSL NDSL EINECS ELINCS NLP PICCS ENCS AICS IECSC KECL Gadolinium oxide (Gd2O3) X X - 235-060-9 - X X X X X Legend: X - Listed E - Indicates a substance that is the subject of a Section 5(e) Consent order under TSCA. F - Indicates a substance that is the subject of a Section 5(f) Rule under TSCA. N - Indicates a polymeric substance containing no free-radical initiator in its inventory name but is considered to cover the designated polymer made with any free-radical initiator regardless of the amount used. P - Indicates a commenced PMN substance R - Indicates a substance that is the subject of a Section 6 risk management rule under TSCA. S - Indicates a substance that is identified in a proposed or final Significant New Use Rule T - Indicates a substance that is the subject of a Section 4 test rule under TSCA. XU - Indicates a substance exempt from reporting under the Inventory Update Rule, i.e. Partial Updating of the TSCA Inventory Data Base Production and Site Reports (40 CFR 710(B). Y1 - Indicates an exempt polymer that has a number-average molecular weight of 1,000 or greater. Y2 - Indicates an exempt polymer that is a polyester and is made only from reactants included in a specified list of low concern reactants that comprises one of the eligibility criteria for the exemption rule.
U.S. Federal Regulations
TSCA 12(b) Not applicable
SARA 313 Not applicable
SARA 311/312 Hazard Categories See section 2 for more information
CWA (Clean Water Act) Not applicable
Clean Air Act Not applicable
OSHA Occupational Safety and Health Administration Not applicable
CERCLA Not applicable
______________________________________________________________________________________________
Page 5 / 6
Page 6
Gadolinium(III) oxide Revision Date 19-Jan-2018 ______________________________________________________________________________________________
California Proposition 65 This product does not contain any Proposition 65 chemicals
U.S. State Right-to-Know Not applicable Regulations
U.S. Department of Transportation
Reportable Quantity (RQ): N DOT Marine Pollutant N DOT Severe Marine Pollutant N
U.S. Department of Homeland Security This product does not contain any DHS chemicals.
Other International Regulations
Mexico - Grade No information available
16. Other information
Prepared By Regulatory Affairs Thermo Fisher Scientific Email: EMSDS.RA@thermofisher.com
Creation Date 26-Sep-2009 Revision Date 19-Jan-2018 Print Date 19-Jan-2018 Revision Summary This document has been updated to comply with the US OSHA HazCom 2012 Standard replacing the current legislation under 29 CFR 1910.1200 to align with the Globally Harmonized System of Classification and Labeling of Chemicals (GHS).
Disclaimer The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guidance for safe handling, use, processing, storage, transportation, disposal and release and is not to be considered a warranty or quality specification. The information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process, unless specified in the text
End of SDS
______________________________________________________________________________________________
Page 6 / 6
Same material — SDS from other publishers
21 documents in this material index. Product grades, hydration states and formulations must be checked in each original PDF.
Gadolinium oxide SDS
Alfa-Aesar
English · 11/24/2015
PDF · 4 pagesGadolinium Oxide SDS
Angstrom Sciences
English · 07/09/15
PDF · 8 pagesGadolinium oxide SDS
Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)
English · 24-Jul-2026
PDF · 8 pagesGadolinium(III) oxide SDS
Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)
English · 24-Jul-2026
PDF · 8 pagesGadolinium oxide SDS
Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)
English · 24-Jul-2026
PDF · 8 pagesGadolinium(III) oxide SDS
Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)
English · 24-Jul-2026
PDF · 6 pagesGadolinium Oxide, 99.9% SDS
FUJIFILM Wako Pure Chemical Corporation
English · 04-Feb-2023 · Revision 2.04
PDF · 5 pagesGadolinium oxide 99.9% SDS
FUJIFILM Wako Pure Chemical Corporation
Japanese · 2023-2-04
PDF · 8 pagesGADOLINIUM (III) OXIDE EXTRA PURE SDS
Loba Chemie
French · Revision not stated
PDF · 6 pagesGadolinium oxide (Gd2O3) SDS
Materion
English · 08-05-2025
PDF · 8 pagesGadolinium oxide - enriched gadolinium isotopes SDS
Neonest / BuyIsotope
English · 14-Aug-2019 · Version 1.1.1
PDF · 3 pagesGadolinium oxide SDS
ProChem
English · Revision not stated
PDF · 3 pagesGadolinium oxide SDS
ProChem
English · Revision not stated
PDF · 3 pagesGadolinium oxide SDS
ProChem
English · Revision not stated
PDF · 7 pagesGadolinium(III) oxide SDS
Sigma-Aldrich
English · 09/28/2017 · Version 4.9
PDF · 7 pagesGadolinium(III) oxide SDS
Stanford Advanced Materials
English · 09/04/2017 · Version 3.0
PDF · 8 pagesGadolinium(III) oxide, nanopowder SDS
Thermo Fisher Scientific
English · 27-Jul-2026 · Version 5
PDF · 11 pagesGadolinium(III) oxide SDS
Thermo Fisher Scientific
French · Revision not stated
PDF · 8 pagesGadolinium(III) oxide SDS
Thermo Fisher Scientific
English · 19-Dec-2025 · Revision 5
PDF · 8 pagesGadolinium oxide SDS
Thermo Fisher Scientific
English · 22-Dec-2025 · Revision 4
PDF · 6 pagesGadolinium(III) oxide SDS
Trace Sciences
English · Revision not stated
Original publisher & company information
Acros-Organics
- Brand / organization
- Acros Organics (original SDS)
- Country / office
- United States
- Website
- thermofisher.com
- SDS contact email
- Not stated in SDS
- Business phone in SDS
- (201) 796-7100
- Product / reference
- AC315510000; AC315510100; AC315510250; AC315511000
Acros Organics chemicals are now under the Thermo Scientific Chemicals brand. The original SDS name and contact details are retained.
View extracted supplier details
Details of the supplier of the safety data sheet Company Fisher Scientific Acros Organics One Reagent Lane One Reagent Lane Fair Lawn, NJ 07410 Fair Lawn, NJ 07410 Tel: (201) 796-7100
About Acros-Organics
Acros Organics chemicals are now under the Thermo Scientific Chemicals brand. The original SDS name and contact details are retained.
Company website & profileDocument source & record history
Original record: Gadolinium(III) oxide — Safety Data Sheet — Acros-Organics
Added: 2026-09-13T12:41:20.000Z · Record updated: 2026-09-14T02:29:00.557Z
Original file SHA-256: 5c837210b27133b0862744b8f2f44703225d440ba4aac23d7a5a0c82d065b7a6
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Official chemical reference sources
Source guide ↗CAS references recorded in this SDS. Properties below describe individual substances, not necessarily the complete product. Check the original SDS for mixtures, grades and hydrate states.
CAS 12064-62-9bis(gadolinium(3+));tris(oxygen(2-))
CAS 12064-62-9 · CAS Common Chemistry ↗ · PubChem ↗
- Chemical name (IUPAC)
- bis(gadolinium(3+));tris(oxygen(2-)) ↗
- Molecular formula
- Gd2O3 ↗
- Molecular weight
- 362.50 g/mol ↗
- Selected synonyms
- Gadolinium oxide; Gadolinia; Gadolinium trioxide; Gadolinium oxide (Gd2O3); Gadolinium sesquioxide; Gadolinium(3+) oxide ↗
- Chemical structure
- Open structure at PubChem ↗
PubChem reference retrieved 2026-09-14. Exact CAS synonym match.
ECHA CHEM · search CAS 12064-62-9 ↗ · AICIS inventory · search CAS 12064-62-9 ↗
GHS provides classification criteria. The applicable hazard classification must be checked for the specific product and jurisdiction.
Suppliers of this material
Companies identified from matching material SDS and checked official product pages. Confirm grade, formulation and availability with the supplier. Missing contacts are not inferred.
| Company | Country | Website | Phone | Evidence | |
|---|---|---|---|---|---|
| Angstrom Sciences, Inc. | United States | Website | info@angstromsciences.com | Not stated | Source Same material SDS; verify grade and availability |
| Avocado Research Chemicals Ltd. | United Kingdom | Website | Not stated | +44 (0) 1524 850506 | Source Same material SDS; verify grade and availability |
| FUJIFILM Wako Pure Chemical Corporation | Japan | Website | Not stated | +81-6-6203-3741 | Source Same material SDS; verify grade and availability |
| Loba Chemie | India | Website | info@lobachemie.com | +91 22 6663 6663 | Source Same material SDS; verify grade and availability |
| Materion | United States | Website | Materion-PS@materion.com | 1.216.383.4019 | Source Same material SDS; verify grade and availability |
| Neonest / BuyIsotope | Sweden | Website | Not stated | Not stated | Source Same material SDS; verify grade and availability |
| ProChem | United States | Website | Not stated | 815-398-1788 | Source Same material SDS; verify grade and availability |
| Sigma-Aldrich | United States | Website | Not stated | +1 800-325-5832 | Source Same material SDS; verify grade and availability |
| Stanford Advanced | United States | Website | Not stated | +1 (949) 407-8904 | Source Same material SDS; verify grade and availability |
| Trace Sciences International | Canada | Website | sales@tracesciences.com | +1 905-770-1100 | Source Same material SDS; verify grade and availability |
| American Elements | United States | Website | Not stated | +1 310-208-0551 | Source Official product page · Checked 2026-09-14 |
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Material background on Wikipedia
Look up Gadolinium(III) oxide on Wikipedia. A matching article introduction is displayed when available; product-specific mixtures and reference materials may not have a dedicated article.
Find this material on Wikipedia ↗Introduction from Wikipedia contributors; CC BY-SA 4.0. General material background, not a replacement for this product’s SDS.