Gadolinium Oxide

Description

Gadolinium Oxide · CAS 11129-31-0 · Gd2O3. UNII 5480D0NHLJ. Boiling Point: 3900 °C @760 [mm Hg]; Melting Point: 2339 °C; Density: 7.407 @ 15°C.

Identification

CAS Registry Number	11129-31-0
PubChem CID	159427
Molecular formula	Gd2O3
IUPAC name	bis(gadolinium(3+));tris(oxygen(2-))
UNII (FDA)	5480D0NHLJ

Computed Descriptors

Molecular Weight	362.50
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	0
Exact Mass	365.83592
Monoisotopic Mass	363.83297
Topological Polar Surface Area	3
Heavy Atom Count	5
Formal Charge	0
Complexity	0

Physical & Chemical Properties

Boiling Point	3900 °C @760 [mm Hg]
Melting Point	2339 °C
Density	7.407 @ 15°C

Physical description & handling notes

• Dry Powder
• Hygroscopic powder; [Merck Index] Insoluble in water; [Hawley]

Regulatory Status

GHS notification summary	36.2% (93 / 257)

GHS Hazard Classification

GHS notification summary	36.2% (93 / 257)
Reported hazard statements	H319 (23.3%), H400 (40.5%), H410 (40.5%)

Documented Uses

• Used in control rods in some nuclear reactors; [Merck Index] Used in neutron shields, catalysts, ceramics, glass, filament coatings, lasers, masers, and to activate TV phosphors; [Hawley]
• Glass Manufacturing [Category: Industry]
• All Other Chemical Product and Preparation Manufacturing
• All Other Basic Inorganic Chemical Manufacturing
• Gadolinium oxide (Gd2O3): ACTIVE

Synonyms

Gadolinium oxide; Gadolinia; Gadolinium trioxide; Gadolinium oxide (Gd2O3); Gadolinium sesquioxide; Gadolinium(3+) oxide; 5480D0NHLJ; RefChem:607888; DTXCID5030165; 235-060-9; 12064-62-9; DTXSID4051613; Gadolinium(III) oxide; Digadolinium trioxide; 11129-31-0; Gd2O3

Frequently Asked Questions

What are the CAS number and molecular formula of Gadolinium Oxide?

CAS 11129-31-0; molecular formula Gd2O3; molecular weight — g/mol.

What other names is Gadolinium Oxide known by?

Gadolinium oxide, Gadolinia, Gadolinium trioxide, Gadolinium oxide (Gd2O3), Gadolinium sesquioxide, Gadolinium(3+) oxide.

Is Gadolinium Oxide classified as hazardous?

36.2% of GHS notifications report no hazard classification (93 of 257).

What are the key physical properties of Gadolinium Oxide?

Boiling Point: 3900 °C @760 [mm Hg]; Melting Point: 2339 °C; Density: 7.407 @ 15°C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.