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| CAS No.: | 1314-36-9 |
|---|---|
| Name: | Yttrium oxide |
| Molecular Structure: | |
|
|
|
| Formula: | Y2O3 |
| Molecular Weight: | 225.82 |
| Synonyms: | Yttrium Oxide;Yttrium(III) Oxide; |
| EINECS: | 215-233-5 |
| Density: | 5.01 g/mL at 25 °C(lit.) |
| Melting Point: | 2410 °C |
| Boiling Point: | 81-83 °C |
| Flash Point: | 12 °C |
| Solubility: | insoluble in water |
| Appearance: | White fine powder |
| Hazard Symbols: |
 Xi, F
|
| Risk Codes: | 36/37/38-67-36/37 |
| Safety: | 26-36-37/39 |
| PSA: | 43.37000 |
| LogP: | -0.30600 |
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Specification
The Yttria is an organic compound with the formula Y2O3. The IUPAC name of this chemical is 1-benzofuran. With the CAS registry number 1314-36-9, it is also named as Yttrium(III) oxide solution. The product's categories are Inorganic Chemicals; Inorganics; 39: Y; YttriumNanomaterials; Nanomaterials; Nanoparticles: Oxides, Nitrides, and Other Ceramics Metal and Ceramic Science; Nanopowders and Nanoparticle Dispersions; Alternative Energy; Electrolytes Metal and Ceramic Science; Materials Science; Oxides; Yttrium. Besides, it is a white fine powder, which should be stored in a cool and dry place.Physical properties about Yttrium oxide are: (1)#H bond acceptors: 3; (2)#Freely Rotating Bonds: 2; (3)Polar Surface Area: 43.37 Å2.
Preparation of Yttria:
this chemical can be prepared by decomposition of yttrium niobium ore through extraction. Chemical reaction equation is as follows:
Uses of Yttria:
Yttrium oxide is used as a common starting material for both materials science as well as inorganic compounds.
In materials science: Yttrium oxide is the most important yttrium compound and is widely used to make YVO4 europium and Y2O3 europium phosphors that give the red color In color TV picture tubes. Yttrium oxide is also used to make yttrium iron garnets, which are very effective microwave filters.
Y2O3 is used to make the high temperature superconductor YBa2Cu3O7, known as "1-2-3" to indicate the ratio of the metal constituents.
In inorganic synthesis: Yttrium oxide is an important starting point for inorganic compounds. For organometallic chemistry it is converted to YCl3 in a reaction with concentrated hydrochloric acid and ammonium chloride.
In lasers: Y2O3 ceramics is a prospective solid-state laser material. In particular, lasers with ytterbium as dopant allow the efficient operation both in cw operation and in pulsed regimes. At high concentration of excitations (of order of 1%) and poor cooling, the quenching of emission at laser frequency and avalanche broadband emission takes place.
Safety information od Yttria:
When you are using this chemical, please be cautious about it as the following:Its vapours may cause drowsiness and dizziness. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Besides, this chemical is irritating to eyes, respiratory system and skin. When you are using it, wear suitable gloves and eye/face protection.
You can still convert the following datas into molecular structure:
(1)SMILES: O=[Y]O[Y]=O
(2)InChI: InChI=1/3O.2Y/rO3Y2/c1-4-3-5-2
(3)InChIKey: SIWVEOZUMHYXCS-VSMQSHDJAZ
(4)Std. InChI: InChI=1S/3O.2Y
(5)Std. InChIKey: SIWVEOZUMHYXCS-UHFFFAOYSA-N
The toxicity data of Yttriais as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 430mg/kg (430mg/kg) | "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 121, 1982. | |
| mouse | LDLo | oral | > 6gm/kg (6000mg/kg) | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 22(7), Pg. 55, 1978. | |
| rat | LD50 | intraperitoneal | 230mg/kg (230mg/kg) | "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 121, 1982. | |
| rat | LDLo | oral | > 10gm/kg (10000mg/kg) | Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 22(7), Pg. 55, 1978. |