CAS 7440-65-5 Yttrium - Materials / Alfa Chemistry

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Yttrium

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Catalog Number

ACM7440655-2

CAS Number

7440-65-5

Product Name

Yttrium

Structure

Category

3D Printing Materials

Synonyms

Yttrium, powder, 500 max. part. size (micron), weight 100 g, purity 99.9%; Yttrium, foil, not light tested, 50x50mm, thickness 0.025mm, as rolled, 99%; Yttrium, plasma standard solution, Specpure(R), Y 1000microg/ml; Yttrium, powder, max. particle size 500 micron, weight 50 g, purity 99.9%; Yttrium powder, -40 mesh; Yttrium foil, 0.64mm (0.025in) thick; Yttrium, lump, 50 mm max. lump size, weight 100 g, purity 99.9%; Yttrium, foil, thickness 0.25 mm, diameter 15 mm, purity 99%; Yttrium rod, 12.7mm (0.5in) dia; Y(2+);

Description

Soft silvery-white metal in bulk. Dark-gray to black odorless powder. Mp: 1509°C; bp 2927°C. Density: 4.47 g cm-3 at 20°C. May irritate the respiratory tract if inhaled as a powder. May irritate the digestive tract if swallowed. Vapors may cause dizziness or suffocation.;Solid;Dark-gray to black, odorless powder. Soft silvery-white metal in bulk.;Dark-gray to black, odorless solid.

IUPAC Name

yttrium

Molecular Weight

88.9058g/mol

Molecular Formula

Canonical SMILES

[Y]

InChI

InChI=1S/Y

InChI Key

VWQVUPCCIRVNHF-UHFFFAOYSA-N

Boiling Point

5301 °F at 760 mm Hg (NIOSH, 2016);3345 °C;5301°F;5301°F

Melting Point

2732 °F (NIOSH, 2016);1522 °C;1526°C;2732°F;2732°F

Density

4.47 (NIOSH, 2016);4.47 g/cu cm;4.47;4.47

Solubility

Soluble in hot H₂O (NIOSH, 2016);Decomposes in water;Soluble in dilute acids and potassium hydroxide solution;Soluble in hot H₂O

Application

Although yttrium metal by itself is not very useful, it has many unusual applicationswhen combined as an alloy or as a compound with other elements. For example, whencombined with iron, it is known as garnet (Y3Fe5O12), which is used as a "filter" in microwave communication systems. When garnets are made with aluminum instead of iron,they form semiprecious garnet gemstones (Y3Al5O12) that resemble diamonds. Aluminumgarnets are referred to as "YAG" solid-state lasers because they are capable of intensifyingand strengthening a single frequency of light energy that is focused through a crystal ofgarnet. This produces a very powerful narrow band of light waves of a single color (microwave frequency). YAG-type lasers have found uses in the medical industry and as a cuttingtool for metals.When combined with oxygen and europium, yttrium produces the red phosphor used asa coating in color television screens to produce the bright red color. Yttrium is also used asan alloy metal and as a high-temperature coating on iron and steel alloys. It is used as a substance to deoxidize (remove the oxygen) during the production of nonferrous metals such asvanadium. Yttrium has the ability to "capture" neutrons, making it useful in the nuclear powerindustry. It is also used in the production of several types of semiconductors.

Storage

Flammables area

Color/Form

Iron-gray, lustrous powder; darkens on exposure to light;Hexagonal, silvery-metallic colored element...gray-black when finely divided. Brittle...harder than zinc.

Complexity

Covalently-Bonded Unit Count

EC Number

231-174-8

Exact Mass

88.90584g/mol

Formal Charge

Heavy Atom Count

MeSH Entry Terms

Yttrium

Monoisotopic Mass

88.90584g/mol

Odor

Odorless

Other Experimental

Natural yttrium contains but one isotope, yttrium-89. Forty-three other unstable isotopes and isomers have been characterized.;Oxidizes on heating in air or oxygen; decomposes on cold water slowly, in boiling water rapidly.;Known only in the tripositive state;Heat of fusion = 11.43 kJ/mol; Heat of sublimation = 424.7 kJ/mol at 25 °C;Standard enthalpy of formation at 298.15 K, 0.0 kJ/mol (crystal); entropy at 298.15 K, 44.4 J/mol-K (crystal); Heat capacity, 26.5 J/mol-K (crystal); Standard enthalpy of formation at 298.15 K, 421.3 kJ/mol (gas phase); Gibbs free energy of formation, 381.1 kJ/mol (gas phase); entropy at 298.15 K, 179.5 J/mol-K (gas phase); Heat capacity 25.9 J/mol-K (gas phase).

Rotatable Bond Count

Topological Polar Surface Area

0A^2

UNII

58784XQC3Y

UN Number

3178

Vapor Pressure

0 mm Hg (approx) (NIOSH, 2016);6.66X10-11 Pa at 1000 K; 2.96x10-7 Pa at 1200 K; 1.17x10-4 Pa at 1400 K; 1.02x10-2 Pa at 1600 K; 0.316 Pa at 1800 K; 4.27 Pa at 2000 K; 35.9 Pa at 2200 K;0 mmHg (approx);0 mmHg (approx)

MSDS

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COA

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Spec Sheet

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