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11181 Yttrium(III) oxide, REacton®, 99.99% (REO)

CAS Number

Stock No. Size Price ($) Quantity Availability
11181-14 25g 44.80
11181-22 100g 82.40
11181-36 500g 241.00
11181-A1 1kg 375.00
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Yttrium(III) oxide, REacton®, 99.99% (REO)


Chemical Properties

Formula Weight
<10 Micron Powder
Melting point
Storage & Sensitivity
Ambient temperatures.
Insoluble in water. Soluble in alcohol and dilute acids


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.


Hygroscopic and sensitive to light. Incompatible with strong oxidizing agents and strong acids. Store in tightly closed container.

Literature References

Belousova, O. L.; Domanskii, A. I.; Ugolkov, V. L.; Dikaya, L. F.; Influence of Yttrium Oxide on the Phase Formation and Sintering of Ceramics Based on the MgAl2O4 Spinel. Glass Phys. Chem. 2008, 34 (4), 474-479.

Tokurakawa, M.; Takaichi, K.; Shirakawa, A.; Ueda, K.; Yagi, H.; Yanagitani, T.; Kaminskii, A. A.; Diode-Pumped Mode-Locked Ceramic Laser. Appl. Phys. Lett. 2007, 90 (7), 071101.

Dubey, V.; Tiwari, R.; Tamrakar, R. K.; Rathore, G. S.; Sharma, C.; Tiwari, N. Infrared spectroscopy and upconversion luminescence behaviour of erbium doped yttrium(III) oxide phosphor. Infrared Phys. Technol. 2014, 67, 537-541.

Tamrakar, R. K.; Upadhyay, K.; Bisen, D. P. Gamma ray induced thermoluminescence studies of yttrium(III) oxide nanopowders doped with gadolinium. J. Radiat. Res. Appl. Sci. 2014, 7 (4), 526-531.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Harmonized Tariff Code


  • 10700

    Copper(II) oxide, Puratronic®, 99.995% (metals basis)
  • 10810

    Mercury(II) oxide, Puratronic®, 99.998% (metals basis)
  • 11207

    Terbium(III,IV) oxide, REacton®, 99.9% (REO)
  • 11264

    Lanthanum(III) oxide, REacton®, 99.99% (REO)
  • 14452

    Barium carbonate, 99.95% (metals basis)

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