Yttrium(III) chloride

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Yttrium(III) chloride
Yttrium(III) chloride
Part of a layer in the crystal structure of YCl3[1]
Layer packing
Names
IUPAC names
Yttrium(III) chloride
Yttrium trichloride
Identifiers
3D model (
JSmol
)
ChemSpider
ECHA InfoCard
 100.030.716 Edit this at Wikidata
EC Number
  • hexahydrate:: 233-801-0
RTECS number
  • ZG3150000
UNII
  • InChI=1S/3ClH.Y/h3*1H;/q;;;+3/p-3 checkY
    Key: PCMOZDDGXKIOLL-UHFFFAOYSA-K checkY
  • InChI=1/3ClH.Y/h3*1H;/q;;;+3/p-3
    Key: PCMOZDDGXKIOLL-DFZHHIFOAW
  • hexahydrate:: InChI=1S/3ClH.6H2O.Y/h3*1H;6*1H2;/q;;;;;;;;;+3/p-3
    Key: IINACGXCEZNYTF-UHFFFAOYSA-K
  • Cl[Y](Cl)Cl
  • hexahydrate:: O.O.O.O.O.O.Cl[Y](Cl)Cl
Properties
YCl3
Molar mass 195.265 g/mol[2]
Appearance white solid
Density 2.61 g/cm3[2]
Melting point 721 °C (1,330 °F; 994 K)[2]
Boiling point 1,482 °C (2,700 °F; 1,755 K)[2]
751 g/L (20 °C)[2]
Solubility 601 g/L ethanol (15 °C)
606 g/L pyridine (15 °C)[3]
Structure[4]
Monoclinic, mS16
C2/m, No. 12
a = 0.692 nm, b = 1.194 nm, c = 0.644 nm
α = 90°, β = 111°, γ = 90°
4
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P332+P313, P337+P313, P362
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
0
0
Safety data sheet (SDS) External MSDS
Related compounds
Other anions
Yttrium(III) iodide
Other cations
Scandium(III) chloride
Lutetium(III) chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Yttrium(III) chloride is an

deliquescent
.

Structure

Solid YCl3 adopts a cubic[

AlCl3
.

Preparation and reactions

YCl3 is often prepared by the "ammonium chloride route," starting from either Y2O3 or hydrated chloride or oxychloride.[6][7] or YCl3·6H2O.[8] These methods produce (NH4)2[YCl5]:

10 NH4Cl + Y2O3 → 2 (NH4)2[YCl5] + 6 NH3 + 3 H2O
YCl3·6H2O + 2 NH4Cl → (NH4)2[YCl5] + 6 H2O

The pentachloride decomposes thermally according to the following equation:

(NH4)2[YCl5] → 2 NH4Cl + YCl3

The thermolysis reaction proceeds via the intermediacy of (NH4)[Y2Cl7].

Treating

oxychloride
rather than reverting to the anhydrous form.

References

  1. ^
    doi:10.1021/j150521a002
    .
  2. ^
    ISBN 978-1439855119
    .
  3. ^ Spencer, James F. (1919), The Metals of the Rare Earths, New York: Longmans, Green, and Co, p. 135
  4. doi:10.1021/j150521a002
    .
  5. ISBN 0-19-855370-6
  6. ^ Meyer, G. (1989). "The Ammonium Chloride Route to Anhydrous Rare Earth Chlorides—The Example of Ycl 3". The Ammonium Chloride Route to Anhydrous Rare Earth Chlorides-The Example of YCl3. Inorganic Syntheses. Vol. 25. pp. 146–150.
    ISBN 978-0-470-13256-2
    .
  7. ISBN 978-3-13-103021-4
    .
  8. doi:10.1016/0022-1902(62)80034-7
    .
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