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CAS No 7783-58-6 , germanium

  • Name: germanium
  • Synonyms: tetrafluoride;germanium;Germanium fluoride; A839222;
  • CAS Registry Number:
  • Transport: UN 3304 2
  • Melting Point: ?36.5 ºC(lit.)
  • Flash Point: °C
  • Boiling Point: -36,5ºC
  • Safety Statements: 26-36/37/39-45
  • Hazard Symbols: C: Corrosive;T: Toxic;
  • Flash Point: °C
  • EINECS: 232-011-3
  • Molecular Weight: 148.633613
  • InchiKey: HJDYIKRCYSSCCZ-UHFFFAOYSA-J
  • InChI: InChI=1S/4FH.Ge/h4*1H;/p-4
  • Risk Statements: 34
  • Molecular Formula: F4Ge-4
  • Molecular Structure:CAS No:7783-58-6 germanium

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References of germanium
Title: Germanium Tetrafluoride
CAS Registry Number: 7783-58-6
Molecular Formula: F4Ge
Molecular Weight: 148.63
Percent Composition: F 51.13%, Ge 48.87%
Line Formula: GeF4
Literature References: Prepd by heating BaGeF6 to around 700°: Dennis, Laubengayer, Z. Phys. Chem. 130, 520 (1927); Dennis, Z. Anorg. Allg. Chem. 174, 119 (1928); Biltz, ibid. 207, 65 (1932); Hoffman, Gutowsky, Inorg. Synth. 4, 147 (1953).
Properties: Colorless gas. Odor of garlic. Thermally stable up to about 1000°. d0 (liq) 2.162; d (solid; -195°) 3.148. mp -15° (under 3032 mm pressure). Sublimes at -36.5°. On contact with water, hydrolyzes to GeO2 and H2GeF6. Does not attack glass when absolutely dry. Corrodes mercury, grease.
Melting point: mp -15° (under 3032 mm pressure)
Density: d0 (liq) 2.162; d (solid; -195°) 3.148
 
Derivative Type: Trihydrate
Properties: Obtained by slow evaporation of a soln of germanium dioxide in 20% HF. This is said to be water-soluble.
 
CAUTION: Highly irritating to eyes, skin, lungs, mucous membranes.