Germanium tetrachloride

Germanium tetrachloride
Germanium tetrachloride - structural formula	Germanium tetrachloride - space-filling model
Names
	IUPAC names Germanium tetrachloride; Tetrachlorogermane; Tetrachloridogermanium
	Other names Germanium(IV) chloride; Neutral germanium chloride (1:4)
Identifiers
CAS Number	10038-98-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	59611 ;
ECHA InfoCard	100.030.093
PubChem CID	66226;
RTECS number	LY5220000;
UNII	YSV1R803C0 ;
CompTox Dashboard (EPA)	DTXSID1044350 ;
	InChI InChI=1S/Cl4Ge/c1-5(2,3)4 Key: IEXRMSFAVATTJX-UHFFFAOYSA-N ; InChI=1S/Cl4Ge/c1-5(2,3)4 Key: IEXRMSFAVATTJX-UHFFFAOYSA-N;
	SMILES Cl[Ge](Cl)(Cl)Cl;
Properties
Chemical formula	GeCl4
Molar mass	214.40 g/mol
Appearance	Colourless liquid
Density	1.879 g/cm3 (20 °C) ; 1.844 g/cm3 (30 °C)
Melting point	−49.5 °C (−57.1 °F; 223.7 K)
Boiling point	86.5 °C (187.7 °F; 359.6 K)
Solubility in water	Soluble, hydrolyses
Solubility	Soluble in ether, benzene, chloroform, CCl4 ; Very soluble in HCl, dilute H2SO4
Magnetic susceptibility (χ)	−72.0·10−6 cm3/mol
Refractive index (nD)	1.464
Structure
Molecular shape	tetrahedral
Thermochemistry
Std molar; entropy (S⦵298)	245.6 J·mol−1·K−1
Std enthalpy of; formation (ΔfH⦵298)	−531.8 kJ·mol−1
Gibbs free energy (ΔfG⦵)	−462.7 kJ·mol−1
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Reacts slowly with water to form HCl and GeO2, corrosive, lachrymator
NFPA 704 (fire diamond)	3 0 2 W
Flash point	Non-flammable
Safety data sheet (SDS)	"External MSDS"
Related compounds
Other anions	Germanium tetrafluoride; Germanium tetrabromide; Germanium tetraiodide
Other cations	Carbon tetrachloride; Silicon tetrachloride; Tin(IV) chloride; Lead(IV) chloride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Germanium tetrachloride is a colourless, fuming liquid^[4] with a peculiar, acidic odour. It is used as an intermediate in the production of purified germanium metal. In recent years, GeCl₄ usage has increased substantially due to its use as a reagent for fiber optic production.

^ P.W. Schenk (1963). "Germanium(IV) Chloride". In G. Brauer (ed.). Handbook of Preparative Inorganic Chemistry, 2nd Ed. Vol. 1. NY, NY: Academic Press. pp. 715–716.
^ Merz, K.; Driess, M. (2002). "Germanium(IV) chloride at 193 K". Acta Crystallogr. C. 58 (Pt 7): i101–i102. doi:10.1107/S0108270102010351. PMID 12094027.
^ CRC handbook of chemistry and physics : a ready-reference book of chemical and physical data. William M. Haynes, David R. Lide, Thomas J. Bruno (2016-2017, 97th ed.). Boca Raton, Florida. 2016. ISBN 978-1-4987-5428-6. OCLC 930681942.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link)
^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 377. ISBN 978-0-08-037941-8.

[Brauer-1] P.W. Schenk (1963). "Germanium(IV) Chloride". In G. Brauer (ed.). Handbook of Preparative Inorganic Chemistry, 2nd Ed. Vol. 1. NY, NY: Academic Press. pp. 715–716.

[2] Merz, K.; Driess, M. (2002). "Germanium(IV) chloride at 193 K". Acta Crystallogr. C. 58 (Pt 7): i101–i102. doi:10.1107/S0108270102010351. PMID 12094027.

[3] CRC handbook of chemistry and physics : a ready-reference book of chemical and physical data. William M. Haynes, David R. Lide, Thomas J. Bruno (2016-2017, 97th ed.). Boca Raton, Florida. 2016. ISBN 978-1-4987-5428-6. OCLC 930681942.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link)

[4] Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 377. ISBN 978-0-08-037941-8.

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