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GERMANIUM(IV) CHLORIDE

Physical Properties Preparation Reactions
GERMANIUM(IV) CHLORIDE
GERMANIUM(IV) CHLORIDE structure
CAS No.
10038-98-9
Chemical Name:
GERMANIUM(IV) CHLORIDE
Synonyms
GeCl4;ermanium(IV) chL;tetrachloro-german;Tetrachlorogermane;GERMANIUM CHLORIDE;tetrachloro-Germane;Germane,tetrachloro-;tetrachloro-germaniu;Germane, tetrachloro-;Germanium(Ⅳ) chloride
CBNumber:
CB9852574
Molecular Formula:
Cl4Ge
Formula Weight:
214.45
MOL File:
10038-98-9.mol

GERMANIUM(IV) CHLORIDE Properties

Melting point:
-49.5 °C
Boiling point:
83 °C(lit.)
Density 
1.844 g/mL at 25 °C
vapor pressure 
76 mm Hg ( 20 °C)
refractive index 
1.4644
Flash point:
83.1°C
storage temp. 
Store below +30°C.
solubility 
Soluble in ether, benzene, chloroform, carbon tetrachloride. Insoluble in hydrochloric acid and sulphuric acid.
form 
Liquid
color 
Colorless
Specific Gravity
1.88
PH
<1 (H2O, 20℃)
Water Solubility 
DECOMPOSES
Sensitive 
Moisture Sensitive
Hydrolytic Sensitivity
8: reacts rapidly with moisture, water, protic solvents
Merck 
14,4410
CAS DataBase Reference
10038-98-9(CAS DataBase Reference)
EWG's Food Scores
1
FDA UNII
YSV1R803C0
NIST Chemistry Reference
Germanium tetrachloride(10038-98-9)
EPA Substance Registry System
Germane, tetrachloro- (10038-98-9)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS05,GHS06
Signal word  Danger
Hazard statements  H314-H330-H318
Precautionary statements  P260h-P301+P330+P331-P303+P361+P353-P405-P501a-P260-P280-P284-P305+P351+P338-P310
Hazard Codes  C
Risk Statements  14-34-67-40-37
Safety Statements  26-27-36-45-8-36/37/39-25
RIDADR  UN 3390 6.1/PG 1
WGK Germany  3
RTECS  LY5225000
10-19
TSCA  Yes
HS Code  2827 39 85
HazardClass  8
PackingGroup  II

GERMANIUM(IV) CHLORIDE price More Price(12)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 208450 Germanium(IV) chloride 99.99% trace metals basis 10038-98-9 5g $111 2020-08-18 Buy
Sigma-Aldrich 208450 Germanium(IV) chloride 99.99% trace metals basis 10038-98-9 25g $324 2020-08-18 Buy
Alfa Aesar 010509 Germanium(IV) chloride, 99.9999% (metals basis) 10038-98-9 25g $234 2020-06-24 Buy
Alfa Aesar 010509 Germanium(IV) chloride, 99.9999% (metals basis) 10038-98-9 5g $68 2020-06-24 Buy
Strem Chemicals 32-0650 Germanium(IV) chloride (99.99%-Ge) PURATREM 10038-98-9 10g $71 2020-06-24 Buy

GERMANIUM(IV) CHLORIDE Chemical Properties,Uses,Production

Physical Properties

Colorless liquid; density 1.879 g/cm3 at 20°C and 1.844 g/cm3 at 30°C; refractive index 1.464; solidifies at –49.5°C; decomposes in water; soluble in alcohol, ether, benzene, chloroform and carbon tetrachloride; insoluble in concentrated hydrochloric and sulfuric acids.

Preparation

Germanium(IV) chloride is prepared by reacting germanium metal with chlorine; or by treating germanium oxide, GeO2, with hydrochloric acid:
Ge + 2Cl2 → GeCl4
GeO2 + 4HCl → GeCl4 + 2H2O
Germanium(IV) chloride often is obtained as a byproduct of germanium metal production. The process involves heating germanium oxide, GeO2, with sodium chloride and coal. The vapors of germanium(IV) chloride and other volatile chlorides formed from the impurity metals are condensed. The product is isolated by fractional distillation. Further purification may be achieved by fractional distillation in 8N HCl and chlorine, or in the presence of other oxidizing agents in quartz stills.
Germanium(IV) chloride also is obtained by chlorination of germanium(II) chloride at ambient temperature. The reaction is rapid.
GeCl2 + Cl2 → GeCl4

Reactions

Germanium(IV) chloride reacts with water, hydrolyzing to germanium oxide and hydrochloric acid:
GeCl4 + 2H2O → GeO2 + 4HCl
The rate of hydrolysis is slower than the corresponding silicon analog, with hydrolysis occurring only partially. When heated with hydrogen at 1,000°C in a quartz reactor, it is converted into germanium(I) chloride, condensing onto the wall of the reactor:
2GeCl4 + 3H2→ 2GeCl + 6HCl
When vapors of GeCl4 are passed over germanium at elevated temperatures, the product is germanium(II) chloride, GeCl2:
GeCl4 + Ge→ 2GeCl2
Reaction with lithium aluminum hydride in ether forms monogermane, GeH4:
GeCl4 + LiAlH4 →GeH4 + LiCl + AlCl3
Reactions with antimony trifluoride, SbF3 in the presence of antimony pentachloride, SbCl5, form mixed halides of compositions: GeCl3F, GeCl3F2, GeCl2F2, and GeClF3.
Reactions with alcohols in the presence of an amine yield alkoxides:
GeCl4 + 4CH3OH + 4C2H5NH2 → Ge(OCH3)4 + 4C2H5N•HCl
Germanium forms six coordinate adducts, such as GeCl4(L)2 with many neutral ligands.

Chemical Properties

Colorless liquid. decomposes in water. Insoluble in concentrated hydrochloric acid; soluble in carbon disulfide, chloroform, benzene, alcohol, and ether.

Physical properties

Colorless liquid; density 1.879 g/cm3 at 20°C and 1.844 g/cm3 at 30°C; refractive index 1.464; boils at 86.5°C; solidifies at -49.5°C; decomposes in water; soluble in alcohol, ether, benzene, chloroform and carbon tetrachloride; insoluble in concentrated hydrochloric and sulfuric acids.

Uses

Germanium(IV) chloride is used in the microwave preparation of Ge2Cl6, a colorless crystalline material which was included in a further study of low-valent germanium compounds.1
Germanium(IV) chloride is used in the preparation of many germanium compounds.

Hazard

Toxic material

Safety Profile

Poison by intravenous route. Mddly toxic by inhalation. A skin, severe eye, and mucous membrane irritant. Will react violently with water or steam to produce toxic and corrosive fumes. When heated to decomposition it emits toxic fumes of Cl-. See also GERMANIUM COMPOUNDS.

Purification Methods

Traces of Cl2 and HCl can be removed from the liquid by blowing dry air through it for a few hours at room temperature or by shaking it with Hg or Hg2Cl2 and then fractionating it in a vacuum. It decomposes on heating at 950o. It has a sharp penetrating odour and fumes in moist air to give a chalky coat of GeO2. It is slowly hydrolysed by H2O to give GeO2, but distils from conc HCl. [Foster et al. Inorg Synth II 109 1946, Dennis & Hance J Am Chem Soc 44 304 1922, Schenk in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 715 1963.] LACHRYMATORY. Glass powder (100-300 mesh). Washed with 10% HNO3, water and dry in air.

GERMANIUM(IV) CHLORIDE Preparation Products And Raw materials

Raw materials

Preparation Products


GERMANIUM(IV) CHLORIDE Suppliers

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