Wollensak

HOLMIUM (III) OXIDE, Rare Earth,4N, 99.99%, 50, 100, 200, 500,1000 GRAMS

Description: HOLMIUM (III) OXIDE, CERAMIC & GLASS SUPPLIES , 99.99%, 4N, 50, 100, 200, 500, 1000 GRAMS. Larger Quantity Available by Special Order, 5 KG and up......... Small Packages under ONE Pound will now Ship First Class Mail Holmium(III) oxide, or holmium oxide is a chemical compound of a rare-earth element holmium and oxygen with the formula Ho2O3. Together with dysprosium(III) oxide (Dy2O3) holmium oxide is one of the most powerfully paramagnetic substances known. The oxide, also called holmia, occurs as a component of the related erbium oxide mineral called erbia. Typically the oxides of the trivalent lanthanides coexist in nature and separation of these components requires specialized methods. Holmium oxide is used in making specialty colored glasses. Glass containing holmium oxide and holmium oxide solutions have a series of sharp optical absorption peaks in the visible spectral range. They are therefore traditionally used as a convenient calibration standard for optical spectrophotometers. Holmium oxide has some fairly dramatic color changes depending on the lighting conditions. In daylight, it is a tannish yellow color. Under trichromatic light, it is a fiery orange red, almost indistinguishable from the way erbium oxide looks under this same lighting. This is related to the sharp emission bands of the phosphors. Holmium oxide has a wide band gap of 5.3 eV and thus should appear colorless. The yellow color originates from abundant lattice defects (such as oxygen vacancies) and is related to internal transitions at the Ho3+ ions. Holmium oxide is one of the colorants used for cubic zirconia and glass, providing yellow or red coloring. Glass containing holmium oxide and holmium oxide solutions (usually in perchloric acid) have sharp optical absorption peaks in the spectral range 200-900 nm. They are therefore used as a calibration standard for optical spectrophotometer and are available commercially. As most other oxides of rare-earth elements, holmium oxide is used as a specialty catalyst, phosphor and a laser material. Holmium laser operates at wavelength of about 2.08 micrometres, either in pulsed or continuous regime. This laser is eye safe and is used in medicine, LIDARs, wind velocity measurements and atmosphere monitoring. .......................................................................................................................................................................................................................................................................... Testing Policy: Testing of raw materials should be an integral part of any process including ceramic or glass making / manufacturing. Upon receipt of any new material, we strongly recommend that you test the material. "Paul Brown Studio Arts and Supplies" . has no control over either the variations that may occur in the natural materials or their application. All products are supplied as is from the manufacturer. No additional processing or technical support is supplied. Therefore, our products are sold with the understanding that the user is solely responsible for determining suitability for any purpose and the results obtained. There are no warranties expressed or implied, regarding the user’s finished product or results. ............................................................................................................................................................................................................................................................................................................................................. Return Policy: NO RETURNS

Price: 70 USD

Location: Bethel, Ohio

End Time: 2024-11-18T03:13:35.000Z

Shipping Cost: 0 USD

Product Images

 HOLMIUM (III) OXIDE, Rare Earth,4N, 99.99%,  50, 100, 200, 500,1000 GRAMS

Item Specifics

All returns accepted: ReturnsNotAccepted

MPN: Does Not Apply

Brand: Unbranded

Available Variations

Color: 50 Grams

Price: 70 USD

Available Quantity: 59

Quantity Sold: 24

Color: 100 Grams

Price: 140 USD

Available Quantity: 52

Quantity Sold: 6

Color: 200 Grams

Price: 270 USD

Available Quantity: 50

Quantity Sold: 1

Color: 500 Grams

Price: 555 USD

Available Quantity: 50

Quantity Sold: 0

Color: 1000 Grams

Price: 1000 USD

Available Quantity: 50

Quantity Sold: 0

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