Other grades of this product :
| 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 |
| 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 |
| 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 |
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