Scandium(III) chloride General Properties Hazards related compounds
various other names scandium chloridescandium trichloride
molecular formula ScCl3
Molar mass 151.31 g/mol
Appearance grayish-white crystals
CAS number <10361-84-9>
Density and also phase 2.39g/mL,solid
Solubility soluble in H2Oinsoluble in EtOH
Stability strongly hygroscopic
melt point 960 °C
boiling point?°C
Std enthalpy changeof fusion, ΔfusHo -925.1 kJ/mol
decision Structure hexagonal close-packed
MSDS external MSDS
main hazards irritant
NFPA 704
RTECS number VQ8925000
connected compounds scandium(III) fluoridescandium(III) nitrate
except where noted otherwise, data are provided for products in their traditional state (at 25 °C, 100 kPa)Infobox disclaimer and references

Scandium(III) chloride is an ionic compound also known together scandium chloride and scandium trichloride. It is created of one scandium and also three chlorine atoms. Every chlorine atom takes one of scandium’s three valence electrons, bring about 3Cl- and Sc3+. The following formula is ScCl3<1>.

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Contents


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Chemical and physical properties

Scandium(III) chloride is a white crystalline solid with the formula ScCl3. Typical for one ionic solid, it is high-melting, liquefying in ~ 960 °C<2>. Both exhibit hexagonal close-packed (hcp) crystal structures, yet it is their bond energy that accounts because that the melting points’ difference. Scandium(III) chloride is mainly of attention in the research study laboratory and also numerous service providers (see below) offer both the anhydrous form and hexahydrate (ScCl3•6H2O).

Like various other compounds of Sc, the chlorides are conquered by the III oxidation state. Interesting lessened forms of Sc can but be all set by reduce the trichloride through Sc steel (see below).

Preparation<3>

Scandium(III) chloride is synthesized through the activity of hydrogen chloride on elemental scandium or scandium(III) oxide. Carbon tetrachloride can likewise be used:

2Sc(s) + 6HCl(l) → 2ScCl3(s) + 3H2(g)

reactions of scandium(III) chloride

ScCl3 has actually been convert to that is dodecyl sulfate salt, i m sorry is provided as a "Lewis acid-surfactant merged catalyst" (LASC) in aldol-like reactions.ScCl3 has proven to be reactive towards Sc metal to give rise come a large family the scandium chlorides where the Sc has an oxidation state Sc(s) + ScCl3 (950 °C) → Sc5Cl8Sc(s) + ScCl3 (890 °C) → Sc7Cl12 → Sc(Sc6Cl12)

various other uses

Scandium(III) chloride is found in halide lamps, optical fibers, electronic ceramics, and also lasers<5>.

Handling and safety considerations

Scandium(III) chloride is hygroscopic it should be save in a desiccator.

References

newspaper citations

Manzer, L. E., "Tetrahydrofuran Complexes the Selected Early transition Metals", inorganic Syntheses, 1982, volume 21, web page 135-40.Hwu, S. J.; Dudis, D. S. And Corbett, J. D., "Synthesis, structure, and also properties the the infinite-chain compounds scandium chloride carbide, Sc5Cl8C and scandium chloride nitride, Sc5Cl8N", not natural Chemistry, 1987, volume 26, web page 469-73Corbett, J. D., "Trichlorides of the rare earth elements, yttrium, and also scandium", not natural Syntheses, 1983, volume 22, web page 39-42Meyer, G. And also Corbett, J. D., "Reduced ternary halides the scandium: RbScX3 (X = chlorine, bromine) and also CsScX3 (X = chlorine, bromine, iodine)", not natural Chemistry, 1981, volume 20, web page 2627-31.Corbett, J. D.; Daake, R. L.; Poeppelmeier, K. R. And also Guthrie, D. H., "Metal-metal external inspection clusters in change metal groups 3 and also 4. Synthesis and also structure of 3 M6 X12-type clusters because that scandium and zirconium", newspaper of the American chemistry Society, 1978, volume 100, page 652-4.Poeppelmeier, K. R. And Corbett, J. D., "Metal-metal bonding in diminished scandium halides. Synthesis and also crystal structure of scandium monochloride", inorganic Chemistry, 1977, volume 16, web page 294-7.

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