Chromocene
Chromocene Basic information
- Product Name:
- Chromocene
- Synonyms:
-
- BIS(CYCLOPENTADIENYL)CHROMIUM
- BIS(CYCLOPENTADIENYL)CHROMIUM(II)
- CHROMOCENE
- Bis(cyclopentadienyl)chromium 5% In Toluene
- Bis(cyclopentadienyl)chrom
- BIS-(CYCLOPENTADIENYL)CHROMIUM(II) (CHROMOCENE)
- bis(cyclopentadiene)chromium
- bis(cyclopentadiene)chromium(ii)
- CAS:
- 1271-24-5
- MF:
- C10H10Cr10*
- MW:
- 182.18
- EINECS:
- 215-036-4
- Product Categories:
-
- Organometallics
- metallocene
- metallo-organic compound
- Mol File:
- 1271-24-5.mol
Chromocene Chemical Properties
- Melting point:
- 168-170 °C(lit.)
- storage temp.
- Store below +30°C.
- form
- crystal
- color
- scarlet
- Water Solubility
- Insoluble in water.
- Sensitive
- Air & Moisture Sensitive
- NIST Chemistry Reference
- Bis(«eta»5-cyclopentadienyl) chromium(1271-24-5)
- EPA Substance Registry System
- Chromocene (1271-24-5)
Safety Information
- Hazard Codes
- Xn,Xi
- Risk Statements
- 20/21/22-36/37/38
- Safety Statements
- 26-37/39
- RIDADR
- 1325
- WGK Germany
- 3
- RTECS
- GB7600000
- TSCA
- Yes
- HazardClass
- 4.2
- PackingGroup
- I
- HS Code
- 29319090
MSDS
- Language:English Provider:SigmaAldrich
- Language:English Provider:ACROS
- Language:English Provider:ALFA
Chromocene Usage And Synthesis
Chemical Properties
bordeaux crystalline powder
Uses
Provides catalyst for ethylene polymerization. A precursor to other chromium(II) compounds.
General Description
Red needles or reddish-purple solid.
Air & Water Reactions
Chromocene is very sensitive to exposure to air and moisture (decomposition is not vigorous). Decomposes in water .
Reactivity Profile
Chromocene reacts with water and alcohols. . It's reaction with alcohols produces pyrophoric metal alkoxides (dialkoxychromium and cyclopentadiene).
Fire Hazard
Literature sources indicate that Chromocene is flammable.
Purification Methods
Chromocene forms pyrophoric red crystals on sublimation at 50o/0.1mm followed by resublimation at 75-90o/0.1mm. Although it is stable at least to 300o, it is readily oxidised in air, and effervesces slowly in H2O to give cyclopentadiene. All operations should be carried out in a dry box. It decomposes in CCl4 or CS2, and for IR even grinding with nujol, KBr or KI causes some decomposition. [Wilkinson et al. J Inorg Nucl Chem 95 109 1956, Wilkinson J Am Chem Soc 76 209 1954, Beilstein 16 IV 1774.]
Chromocene Preparation Products And Raw materials
Raw materials
ChromoceneSupplier
- Tel
- 022-66880623
- sales@tjzxchem.com
- Tel
- 010-82848833 400-666-7788
- jkinfo@jkchemical.com
- Tel
- +49 3493/605464
- sales@intatrade.de
- Tel
- 400-6106006
- saleschina@alfa-asia.com
- Tel
- 010-89508211 18501085097
- sales.bj@hwrkchemical.com
Chromocene(1271-24-5)Related Product Information
- Tetrahydrocyclopentadiene
- Ferrocenecarboxylic acid
- Ferrocenecarboxaldehyde
- Acetylferrocene
- Chromium(VI) oxide
- chromium dioxide
- METHYLCYCLOPENTADIENE DIMER
- Tetraphenylcyclopentadienone
- Titanocene dichloride
- Aminoferrocene
- 1,3-Cyclopentadiene
- Ferrocene
- Dicyclopentadiene
- Hexachlorocyclopentadiene
- Chromium
- ETHYNYLFERROCENE
- BIS(CYCLOPENTADIENYL)MANGANESE
- beryllium dicyclopenta-2,4-dienide