Yttrium oxyfluoride

Last updated
Yttrium oxyfluoride
Identifiers
3D model (JSmol)
  • [Y+3].[O-2].[F-]
Properties
FOY
Molar mass 123.903 g·mol−1
Appearancewhite powder
Density 5.18 g/cm3
Structure
tetragonal
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Yttrium oxyfluoride is an inorganic chemical compound with the formula YOF. [1] Under normal conditions, the compound is a colorless solid. [2]

Contents

Synthesis

Yttrium oxyfluoride may be formed in the decomposition of crystalline hydrate of yttrium fluoride upon heating to 900 °C in a vacuum:

Yttrium oxyfluoride can also be made by hydrolysis of yttrium fluoride with superheated steam at 800 °C:

Physical properties

Yttrium oxyfluoride forms colorless crystals of tetragonal crystal system; its cell parameters are: a = 0.3910 nm, c = 0.5431 nm. According to hexagonal crystal family, the cell parameters are: a = 0.38727 nm, c = 1.897 nm, Z = 6.

Applications

Stable yttrium oxyfluoride material is used for inner walls of plasma process equipment. [3] [4]

Related Research Articles

<span class="mw-page-title-main">Yttrium(III) fluoride</span> Chemical compound

Yttrium(III) fluoride is an inorganic chemical compound with the chemical formula Y F3. It is not known naturally in 'pure' form. The fluoride minerals containing essential yttrium include tveitite-(Y) (Y,Na)6Ca6Ca6F42 and gagarinite-(Y) NaCaY(F,Cl)6. Sometimes mineral fluorite contains admixtures of yttrium.

<span class="mw-page-title-main">Samarium(III) fluoride</span> Chemical compound

Samarium(III) fluoride (SmF3) is a slightly hygroscopic solid fluoride. Conditions/substances to avoid are: open flame, moisture, strong acids.

<span class="mw-page-title-main">Yttrium(III) phosphate</span> Chemical compound

Yttrium phosphate, YPO4, is the phosphate salt of yttrium. It occurs in nature as minerals xenotime and weinschenkite.

<span class="mw-page-title-main">Actinium(III) fluoride</span> Chemical compound

Actinium(III) fluoride (AcF3) is an inorganic compound, a salt of actinium and fluorine.

<span class="mw-page-title-main">Praseodymium(IV) fluoride</span> Chemical compound

Praseodymium(IV) fluoride (also praseodymium tetrafluoride) is a binary inorganic compound, a highly oxidised metal salt of praseodymium and fluoride with the chemical formula PrF4.

<span class="mw-page-title-main">Yttrium oxalate</span> Chemical compound

Yttrium oxalate is an inorganic compound, a salt of yttrium and oxalic acid with the chemical formula Y2(C2O4)3. The compound does not dissolve in water and forms crystalline hydrates—colorless crystals.

Manganese oxalate is a chemical compound, a salt of manganese and oxalic acid with the chemical formula MnC
2O
4. The compound creates light pink crystals, does not dissolve in water, and forms crystalline hydrates. It occurs naturally as the mineral Lindbergite.

<span class="mw-page-title-main">Tin(II) oxalate</span> Chemical compound

Tin(II) oxalate is an inorganic compound, a salt of tin and oxalic acid with the chemical formula SnC
2O
4. The compound looks like colorless crystals, does not dissolve in water, and forms crystalline hydrates.

Samarium(III) oxalate is an inorganic compound, a salt of samarium and oxalic acid with the formula Sm2(C2O4)3. The compound does not dissolve in water, forms a crystalline hydrate with yellow crystals.

Neptunium diarsenide is a binary inorganic compound of neptunium and arsenic with the chemical formula NpAs
2. The compound forms crystals.

Neptunium silicide is a binary inorganic compound of neptunium and silicon with the chemical formula NpSi
2. The compound forms crystals and does not dissolve in water.

Plutonium silicide is a binary inorganic compound of plutonium and silicon with the chemical formula PuSi. The compound forms gray crystals.

<span class="mw-page-title-main">Ytterbium(III) nitrate</span> Chemical compound

Ytterbium(III) nitrate is an inorganic compound, a salt of ytterbium and nitric acid with the chemical formula Yb(NO3)3. The compound forms colorless crystals, dissolves in water, and also forms crystalline hydrates.

Lutetium(III) nitrate is an inorganic compound, a salt of lutetium and nitric acid with the chemical formula Lu(NO3)3. The compound forms colorless crystals, dissolves in water, and also forms crystalline hydrates. The compound is poisonous.

<span class="mw-page-title-main">Protactinium(IV) bromide</span> Chemical compound

Protactinium(IV) bromide is an inorganic compound. It is an actinide halide, composed of protactinium and bromine. It is radioactive, and has the chemical formula of PaBr4. It may be due to the brown color of bromine that causes the appearance of protactinium(IV) bromide to be brown crystals. Its crystal structure is tetragonal. Protactinium(IV) bromide is sublimed in a vacuum at 400 °C. The protactinium(IV) halide closest in structure to protactinium(IV) bromide is protactinium(IV) chloride.

UPt<sub>3</sub> Chemical compound

UPt3 is an inorganic binary intermetallic crystalline compound of platinum and uranium.

Lanthanum(III) oxyfluoride is an inorganic compound of lanthanum, fluorine, and oxygen with the chemical formula LaOF.

Samarium(III) molybdate is an inorganic compound, with the chemical formula Sm2(MoO4)3. It is one of the compounds formed by the three elements samarium, molybdenum and oxygen.

<span class="mw-page-title-main">Samarium(III) phosphate</span> Chemical compound

Samarium(III) phosphate is an inorganic compound, with the chemical formula of SmPO4. It is one of the phosphates of samarium.

<span class="mw-page-title-main">Samarium(III) antimonide</span> Chemical compound

Samarium antimonide is a binary inorganic compound of samarium and antimony with the formula SmSb. It forms crystals.

References

  1. ↑ Mann, A. W.; Bevan, D. J. M. (1970). "The crystal structure of stoichiometric yttrium oxyfluoride, YOF". Acta Crystallographica . B26 (12): 2129–2131. Bibcode:1970AcCrB..26.2129M. doi:10.1107/S0567740870005496 . Retrieved 16 June 2017.
  2. ↑ Рипан, Р.; Четяну, И. (1992). Неорганическая химия (in Russian).
  3. ↑ Shiba, Yoshinobu (January 2017). "Stable yttrium oxyfluoride used in plasma process chamber". Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films . 35 (2): 021405. Bibcode:2017JVSTA..35b1405S. doi:10.1116/1.4975143.
  4. ↑ Tsunoura, Toru; Yoshida, Katsumi; Yano, Toyohiko; Kishi, Yukio (2 May 2017). "Fabrication, characterization, and fluorine-plasma exposure behavior of dense yttrium oxyfluoride ceramics". Japanese Journal of Applied Physics . 56 (6S2): 06HC02. Bibcode:2017JaJAP..56fHC02T. doi:10.7567/JJAP.56.06HC02. S2CID   126342556.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.