| Identification | More | [Name]
GERMANIUM(II) IODIDE | [CAS]
13573-08-5 | [Synonyms]
GERMANIUM DIIODIDE
GERMANIUM DIIOIDE
GERMANIUM(II) IODIDE
GERMANIUM IODIDE YELLOW
GeI2
Germanium iodide (GeI2)
germaniumiodide(gei2)
GERMANIUM(II) IODIDE, 99.99+%
Germanium(II)iodide(99.99+%-Ge)PURATREM
Germanium(II) iodide, 99.999% (metals basis)
Germanium(II) diiodide | [EINECS(EC#)]
236-998-1 | [Molecular Formula]
GeI2 | [MDL Number]
MFCD00135537 | [Molecular Weight]
326.45 | [MOL File]
13573-08-5.mol |
| Chemical Properties | Back Directory | [Appearance]
yellow to gold flakes or powder | [Melting point ]
460°C | [Boiling point ]
545°C | [density ]
5.37 g/mL at 25 °C(lit.)
| [storage temp. ]
under inert gas (nitrogen or Argon) at 2–8 °C | [solubility ]
Soluble in dilute hydrochloric acid. | [form ]
orange-yellow hexagonal crystals | [color ]
Yellow to brown | [Specific Gravity]
5.73 | [Water Solubility ]
soluble H2O [CRC10] | [Sensitive ]
Air & Moisture Sensitive | [CAS DataBase Reference]
13573-08-5(CAS DataBase Reference) | [EPA Substance Registry System]
Germanium iodide (GeI2) (13573-08-5) |
| Hazard Information | Back Directory | [Chemical Properties]
yellow to gold flakes or powder | [Uses]
Reagent forms stable ionic adducts with carbenes.1 | [Preparation]
From a germanium sulfide powder by adding excess 57% concentrated hydriodic acid, under stirring at 100 ℃ for the reaction, filtered while hot, the filtrate is slowly cooled system. It can also be made by adding germanium tetraiodide to distilled water and 57% concentrated hydriodic acid with stirring, adding 50% hypophosphite, boiling under reflux, crystallizing after reaction, washing with dilute hydriodic acid and drying. | [reaction suitability]
reagent type: catalyst
core: germanium |
| Safety Data | Back Directory | [Hazard Codes ]
C | [Risk Statements ]
R34:Causes burns. | [Safety Statements ]
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S27:Take off immediately all contaminated clothing .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
UN 3260 8/PG 2
| [WGK Germany ]
3
| [F ]
10-19-21 | [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
II | [HS Code ]
2827600090 |
| Questions And Answer | Back Directory | [Description]
Germanium diiodide (also named as germanium (II) iodide) is a yellow crystalline solid which decomposes on melting. Its specific density is 5.37. It can be sublimed at 240°C in a vacuum.1 It can be used to obtain high yield of germanium nanocrystals.2
| [References]
- https://en.wikipedia.org/wiki/Germanium_iodide
- X. Lu, B. A. Korgel, K. P. Johnston, High yield of germanium nanocrystals synthesized from germanium diiodide in solution, Chemistry of Materials, 2005, vol. 17, pp. 6479-6485
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