Encyclopedia / Oxide / Organic Intermediate / Mineral

Yttrium oxide

CAS：1314-36-9
MW:225.8099
MF：O3Y2

Yttrium oxide, with the chemical formula Y2O3 and CAS registry number 1314-36-9, is a compound known for its role as a rare earth oxide. This white solid, also referred to as yttria, is characterized by its high melting point and excellent thermal stability. Yttrium oxide is commonly used as a component in phosphors, ceramics, and glass, where it imparts desirable properties such as high refractive index and low thermal expansion. It is also used as a catalyst in various chemical reactions and as a dopant in materials for solid-state electronics. Yttrium oxide has been studied for its potential applications in fuel cells, lasers, and superconductors. It is an important compound in the field of materials science and technology, contributing to the development of advanced materials with unique properties.

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Names and ldentifier
Properties
Use and Manufacturing
Safety and Handling
Msds
Other Information
Computational chemical data
Related Questions
Realated Product Infomation

1. Names and Identifiers

1.1 Name: Yttrium oxide

1.2 Synonyms: EINECS 215-233-5; MFCD00011473; Y2O3 A YTTRIUMOXIDE GRADE A - A PRODUCT OF H.C. STARCK; Yttrium(III) Oxide; Yttriumoxid; YTTRIUMOXIDE,POWDER; YTTRIUMOXIDES;

1.3 CAS No.: 1314-36-9

1.4 CID: 159374

1.5 EINECS: 215-233-5

1.6 Molecular Formula: O3Y2

1.7 Inchi: InChI=1S/3O.2Y/q3*-2;2*+3

1.8 InChkey: RUDFQVOCFDJEEF-UHFFFAOYSA-N

1.9 Canonical Smiles: [O-2].[O-2].[O-2].[Y+3].[Y+3]

1.10 Isomers Smiles: [O-2].[O-2].[O-2].[Y+3].[Y+3]

2. Properties

2.1 Appearance: white powder

2.2 Storage: Ambient temperatures.

2.3 Chemical Properties: white powder(s) or sintered tablets and pieces of 99.9% purity; bcc; readily absorbs atmospheric CO2; enthalpy of fusion 105.00 kJ/mol; used in crucible form for experimental, proprietary melting, also sintered pieces used as evaporation material for hard film dielectric coating and thin film capacitors, and as 99.999%, 99.99%, 99.9% pure sputtering target for preparing hard films, dielectric coatings, and thin film capacitor [CER91] [MER06] [CRC10]

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2.4 Physical Properties: White powder; body-centered cubic structure; density 5.03 g/cm3; melts at 2,436°C; insoluble in water; soluble in dilute acids.

2.5 Color/Form: White

2.6 PH: 10±1

2.7 Water Solubility: Insoluble

2.8 StorageTemp: Storage temperature: no restrictions.

3. Use and Manufacturing

3.1 Description

Yttrium oxide, with the chemical formula Y2O3, has the CAS number 1314-36-9. It appears as a white solid with no distinct odor. The basic structure of yttrium oxide consists of two yttrium atoms bonded to three oxygen atoms. This compound is insoluble in water. Yttrium oxide is considered to be non-toxic, but it may cause irritation to the respiratory system if inhaled. It is important to handle this chemical with care and use appropriate protective equipment when working with it. Yttrium oxide is primarily used in the production of phosphors for fluorescent lamps and LEDs. It is also used as a catalyst in various chemical reactions and as a component in ceramics and glass.

Applicable Fields

Phosphors: Yttrium oxide is widely used in the production of phosphors for fluorescent lamps and LEDs. Its purpose in this field is to emit light when excited by an energy source. The mechanism of action involves the absorption of energy and the subsequent release of light at a specific wavelength.

Catalysis: Yttrium oxide is used as a catalyst in various chemical reactions. Its purpose in this field is to increase the rate of a chemical reaction without being consumed in the process. The mechanism of action involves providing an alternative reaction pathway with lower activation energy, thus facilitating the reaction.

Ceramics and Glass: Yttrium oxide is a key component in the production of ceramics and glass. Its purpose in this field is to improve the mechanical and thermal properties of the materials. The mechanism of action involves the incorporation of yttrium oxide into the structure of the ceramics or glass, which enhances their strength, durability, and resistance to high temperatures.

Storage

Conditions: Store in a cool and dry place.

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3.2 Usage: Yttrium Oxide, also called Yttria, high purity Yttrium Oxides are the most important materials for tri-bands Rare Earth phosphors which give the red colour in colour television & computer tubes. In optical industry, the Yttrium Oxide is used to produce Yttrium-Iron-Garnets, which are very effective microwave filters. Low purity of Yttrium Oxide are widely applied in electronic ceramics. It is widely used to make Eu:YVO4 and Eu:Y2O3 phosphors that give the red color in color TV picture tubes.Also, it is used in gas mantles and acetylene lights. Other uses are in yttriumiron garnets for microwave filters in lasers, and as a stabilizer for high temperature in refractories.

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4. Safety and Handling

4.1 Safety Profile: A poison by intraperitoneal route. See alsoYTTRIUM and RARE EARTHS.

4.2 Sensitive: Air Sensitive

5. MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Not classified.

2.2 GHS label elements, including precautionary statements

Pictogram(s)	No symbol.
Signal word	No signal word.
Hazard statement(s)	none
Precautionary statement(s)
Prevention	none
Response	none
Storage	none
Disposal	none

2.3 Other hazards which do not result in classification

none

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6. Computed Properties

Molecular Weight：225.8099g/mol
Molecular Formula：O₃Y₂
Compound Is Canonicalized：True
XLogP3-AA：225.796420
Monoisotopic Mass：225.796420
Complexity：0
Rotatable Bond Count：0
Hydrogen Bond Donor Count：0
Hydrogen Bond Acceptor Count：3
Topological Polar Surface Area：3
Heavy Atom Count：：5
Defined Atom Stereocenter Count：0
Undefined Atom Stereocenter Count：0
Defined Bond Stereocenter Count：0
Undefined Bond Stereocenter Count：0
Isotope Atom Count：0
Covalently-Bonded Unit Count：5
CACTVS Substructure Key Fingerprint：AAADcQAAMAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

7.Other Information

Merck: 14,10107

Physical Properties: White powder; body-centered cubic structure; density 5.03 g/cm3; melts at 2,436°C; insoluble in water; soluble in dilute acids.

Uses: Yttrium Oxide, also called Yttria, high purity Yttrium Oxides are the most important materials for tri-bands Rare Earth phosphors which give the red colour in colour television & computer tubes. In optical industry, the Yttrium Oxide is used to produce Yttrium-Iron-Garnets, which are very effective microwave filters. Low purity of Yttrium Oxide are widely applied in electronic ceramics. It is widely used to make Eu:YVO4 and Eu:Y2O3 phosphors that give the red color in color TV picture tubes.
Also, it is used in gas mantles and acetylene lights. Other uses are in yttriumiron garnets for microwave filters in lasers, and as a stabilizer for high temperature in refractories.

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Preparation: Yttrium oxide is produced as an intermediate in recovery of yttrium from xenotime and monazite (See Yttrium, Recovery). The oxide is produced after separation of rare earth sulfates obtained from digesting the mineral with sulfuric acid on a cation exchange bed, precipitating yttrium fraction as oxalate, and igniting the oxalate at 750°C.
Yttrium oxide also may be obtained by thermal decomposition of yttrium nitrate.

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Chemical Properties: white powder(s) or sintered tablets and pieces of 99.9% purity; bcc; readily absorbs atmospheric CO2; enthalpy of fusion 105.00 kJ/mol; used in crucible form for experimental, proprietary melting, also sintered pieces used as evaporation material for hard film dielectric coating and thin film capacitors, and as 99.999%, 99.99%, 99.9% pure sputtering target for preparing hard films, dielectric coatings, and thin film capacitor [CER91] [MER06] [CRC10]

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Safety Profile: A poison by intraperitoneal route. See also YTTRIUM and RARE EARTHS.

Diluting uranium oxide for nuclear fuel rods: Diluting agent/ Yttrium oxide can form a solid solution with uranium oxide

Preparation of permanent magnets: Additive

Prospective solid-state laser material: Dopant / lasers with ytterbium allow the efficient operation both in continuous operation and in pulsed regimes

Making Yttrium iron garnets for powerful microwave filters: Raw material/source of Yttrium

Ultrafast sensors used in g-ray and x-rays: Additive

Paints and plastics: Additive/decreases UV degradation

Usage: Yttriium(III) oxide is used to make phosphors for color TV tubes, yttrium iron garnets for use as microwave filters, high temperature superconductors, as a mineralizing agent for the formation of spinel and as a stabilizer for high-temperature service materials. It is presurcor for important inorganic compounds. It is a potential solid-state laser material which allows the efficient operation both in continuous operation and in pulsed regimes.

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Usage: Yttrium oxide is an excellent mineralizing agent for spinel formation. Yttrium oxide is used as a common starting material for both materials science as well as inorganic compounds. Provides easy application of uniform, thin, protective high temperature Yttrium Oxide coatings. Yttrium Oxide is used to produce Yttrium-Iron-Garnets, which are very effective microwave filters. Low purity of Yttrium Oxide are widely applied in electronic ceramics. Yttrium Oxide is also used to make Yttrium-Iron-Garnets, which are very effective microwave filters.

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Usage: Sintered pellets suitable for vacuum depositionYttriium(III) oxide is used to make phosphors for color TV tubes, yttrium iron garnets for use as microwave filters, high temperature superconductors, as a mineralizing agent for the formation of spinel and as a stabilizer for high-temperature service materials. It is a precursor for important inorganic compounds. It is a potential solid-state laser material which allows the efficient operation both in continuous operation and in pulsed regimes.

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9. Related Questions

: Why is Yttrium Oxide Essential in Advancing High-Performance Laser Technologies?General Description Yttrium oxide plays a crucial role in erbium-doped fiber lasers as a saturable absorber, enhancing laser efficiency and stability. Its optical nonlinearity enables the generation o..; What is the crystal structure of cubic C-type Y2O3 (bixbyite)?Yttrium oxide, with the chemical formula Y2O3, displays different crystal structures under varying conditions. The most common and stable form is the cubic phase, also known as C-type or C-Y2O3, chara..; What are the properties, preparation, and uses of Yttrium oxide?Yttrium oxide is a white powder that is insoluble in water but soluble in acids. It has a large specific surface area, and ultrafine Yttrium oxide is widely used in the production of laser materials, ..; What are the applications of Yttrium oxide powder?Rare earths are an extremely important strategic resource and play an irreplaceable role in industrial production. Automotive glass, nuclear magnetic resonance, optical fiber, LCD screens, etc. are al..

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