Yttrium(III)-oxide

Description

Yttrium(III)-oxide · CAS 1314-36-9 · O3Y2. UNII X8071685XT. Melting Point: 2410 °C; Density: 4.84 @25 °C.

Identification

CAS Registry Number	1314-36-9
PubChem CID	159374
Molecular formula	O3Y2
IUPAC name	tris(oxygen(2-));bis(yttrium(3+))
UNII (FDA)	X8071685XT

Computed Descriptors

Molecular Weight	225.810
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	0
Exact Mass	225.796420
Monoisotopic Mass	225.796420
Topological Polar Surface Area	3
Heavy Atom Count	5
Formal Charge	0
Complexity	0

Physical & Chemical Properties

Melting Point	2410 °C
Density	4.84 @25 °C

Physical description & handling notes

• CBI; Dry Powder; Dry Powder; Other Solid
• White solid insoluble in water; [Sax]

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS
GHS notification summary	50% (274 / 548)

GHS Hazard Classification

GHS notification summary	50% (274 / 548)
Reported hazard statements	H315 (43.6%), H319 (36.7%), H335 (43.6%), H413 (100%), H320

Documented Uses

• Used in an alloy with europium for color TV phosphors, in yttrium-iron garnets for microwave filters, and in refractories with zirconia and silicon nitride; [Hawley]
• Not Known or Reasonably Ascertainable
• 2023: 1,000,000 - <2,500,000 lb
• 2022: 1,000,000 - <2,500,000 lb
• 2021: 1,000,000 - <2,500,000 lb
• Other (requires additional information)

Synonyms

Yttrium oxide; Yttrium(III) oxide; Yttria; Yttrium trioxide; Diyttrium trioxide; Yttrium(3+) oxide; 11130-29-3; EINECS 234-382-7; EINECS 215-233-5; X8071685XT; YO 3-245; YTTRIUM OXIDE (GENERIC); UNII-X8071685XT; EC 215-233-5; Yttrium Oxydatum; RefChem:58010

Frequently Asked Questions

What are the CAS number and molecular formula of Yttrium(III)-oxide?

CAS 1314-36-9; molecular formula O3Y2; molecular weight — g/mol.

What other names is Yttrium(III)-oxide known by?

Yttrium oxide, Yttrium(III) oxide, Yttria, Yttrium trioxide, Diyttrium trioxide, Yttrium(3+) oxide.

What is the regulatory status of Yttrium(III)-oxide?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is Yttrium(III)-oxide classified as hazardous?

50% of GHS notifications report no hazard classification (274 of 548).

What are the key physical properties of Yttrium(III)-oxide?

Melting Point: 2410 °C; Density: 4.84 @25 °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.