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01 / SAFETY DATA SHEET

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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02 / ORIGINAL PDF

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03 / RESDS DATA ANALYSIS

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.

SDS sections15/16
Coverage94%
Hazard codes0
Precautionary codes0
UN numbers0
Same-material docs22

GHS & transport evidence

Page links show the first occurrence found in extracted text.

CAS numbers
12064-62-9 p.1
Signal words
Warning

SDS 16-section coverage

15 section headings detected; 1 not detected by the parser.

1. Identification · detected2. Hazard identification · not detected3. Composition / ingredients · detected4. First-aid measures · detected5. Fire-fighting measures · detected6. Accidental release measures · detected7. Handling and storage · detected8. Exposure controls / PPE · detected9. Physical and chemical properties · detected10. Stability and reactivity · detected11. Toxicological information · detected12. Ecological information · detected13. Disposal considerations · detected14. Transport information · detected15. Regulatory information · detected16. Other information · detected

Normalized physical-property units

Calculated conversions from values detected in this SDS; not independent laboratory measurements.

PropertySDS valueSI conversionUS conversion
Melting point1900 °C2173.15 K3452.0 °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.

PublisherRevisionLanguageRegionPages
Current Acros-Organics19-Jan-2018 · Revision 3EnglishUnited States · OSHA6
Alfa-Aesar11/24/2015EnglishUnited States · OSHA; European Union · REACH / CLP; Canada · WHMIS4
Angstrom Sciences07/09/15EnglishNot stated4
Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)24-Jul-2026EnglishUnited Kingdom8
Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)24-Jul-2026EnglishUnited Kingdom8
Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)24-Jul-2026EnglishUnited Kingdom8
Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)24-Jul-2026EnglishUnited Kingdom8
FUJIFILM Wako Pure Chemical Corporation04-Feb-2023 · Revision 2.04EnglishJapan6
SDS publisher documentEXTRACTED RESDS parserCALCULATED deterministic conversion / coverageDERIVED same-material index comparison
04 / SPECIFICATIONS

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
05 / DOCUMENT TEXT

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

______________________________________________________________________________________________

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

______________________________________________________________________________________________

Page 2 / 6

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

______________________________________________________________________________________________

Page 3 / 6

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.

______________________________________________________________________________________________

Page 4 / 6

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

06 / OTHER PUBLISHERS

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.

PDF · 4 pages

Gadolinium oxide SDS

Alfa-Aesar

English · 11/24/2015

PDF · 4 pages

Gadolinium Oxide SDS

Angstrom Sciences

English · 07/09/15

PDF · 8 pages

Gadolinium oxide SDS

Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)

English · 24-Jul-2026

PDF · 8 pages

Gadolinium(III) oxide SDS

Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)

English · 24-Jul-2026

PDF · 8 pages

Gadolinium oxide SDS

Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)

English · 24-Jul-2026

PDF · 8 pages

Gadolinium(III) oxide SDS

Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific)

English · 24-Jul-2026

PDF · 6 pages

Gadolinium Oxide, 99.9% SDS

FUJIFILM Wako Pure Chemical Corporation

English · 04-Feb-2023 · Revision 2.04

PDF · 5 pages

Gadolinium oxide 99.9% SDS

FUJIFILM Wako Pure Chemical Corporation

Japanese · 2023-2-04

PDF · 8 pages

GADOLINIUM (III) OXIDE EXTRA PURE SDS

Loba Chemie

French · Revision not stated

PDF · 6 pages

Gadolinium oxide (Gd2O3) SDS

Materion

English · 08-05-2025

PDF · 8 pages

Gadolinium oxide - enriched gadolinium isotopes SDS

Neonest / BuyIsotope

English · 14-Aug-2019 · Version 1.1.1

PDF · 3 pages

Gadolinium oxide SDS

ProChem

English · Revision not stated

PDF · 3 pages

Gadolinium oxide SDS

ProChem

English · Revision not stated

PDF · 3 pages

Gadolinium oxide SDS

ProChem

English · Revision not stated

PDF · 7 pages

Gadolinium(III) oxide SDS

Sigma-Aldrich

English · 09/28/2017 · Version 4.9

PDF · 7 pages

Gadolinium(III) oxide SDS

Stanford Advanced Materials

English · 09/04/2017 · Version 3.0

PDF · 8 pages

Gadolinium(III) oxide, nanopowder SDS

Thermo Fisher Scientific

English · 27-Jul-2026 · Version 5

PDF · 11 pages

Gadolinium(III) oxide SDS

Thermo Fisher Scientific

French · Revision not stated

PDF · 8 pages

Gadolinium(III) oxide SDS

Thermo Fisher Scientific

English · 19-Dec-2025 · Revision 5

PDF · 8 pages

Gadolinium oxide SDS

Thermo Fisher Scientific

English · 22-Dec-2025 · Revision 4

PDF · 6 pages

Gadolinium(III) oxide SDS

Trace Sciences

English · Revision not stated

07 / SOURCE COMPANY

Original publisher & company information

Supplier / publisher listed in SDS

Acros-Organics

Official website checked
Brand / organization
Acros Organics (original SDS)
Country / office
United States
SDS contact email
Not stated in SDS
Business phone in SDS
(201) 796-7100
Product / reference
AC315510000; AC315510100; AC315510250; AC315511000
Official website contactContact page / website Source · Checked 2026-09-14

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 & profile
Document 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

Original source PDF

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08 / OFFICIAL REFERENCES

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-))

GHS provides classification criteria. The applicable hazard classification must be checked for the specific product and jurisdiction.

09 / MATERIAL SUPPLIERS

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.

CompanyCountryWebsiteEmailPhoneEvidence
Angstrom Sciences, Inc.United StatesWebsite info@angstromsciences.comNot statedSource Same material SDS; verify grade and availability
Avocado Research Chemicals Ltd.United KingdomWebsite Not stated+44 (0) 1524 850506Source Same material SDS; verify grade and availability
FUJIFILM Wako Pure Chemical CorporationJapanWebsite Not stated+81-6-6203-3741Source Same material SDS; verify grade and availability
Loba ChemieIndiaWebsite info@lobachemie.com+91 22 6663 6663Source Same material SDS; verify grade and availability
MaterionUnited StatesWebsite Materion-PS@materion.com1.216.383.4019Source Same material SDS; verify grade and availability
Neonest / BuyIsotopeSwedenWebsite Not statedNot statedSource Same material SDS; verify grade and availability
ProChemUnited StatesWebsite Not stated815-398-1788Source Same material SDS; verify grade and availability
Sigma-AldrichUnited StatesWebsite Not stated+1 800-325-5832Source Same material SDS; verify grade and availability
Stanford AdvancedUnited StatesWebsite Not stated+1 (949) 407-8904Source Same material SDS; verify grade and availability
Trace Sciences InternationalCanadaWebsite sales@tracesciences.com+1 905-770-1100Source Same material SDS; verify grade and availability
American ElementsUnited StatesWebsite Not stated+1 310-208-0551Source Official product page · Checked 2026-09-14
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10 / GLOBAL SEARCH

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11 / WIKIPEDIA

Material background on Wikipedia

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