Chromocene
![Chromocene Structure](CAS/GIF/1271-24-5.gif)
- CAS No.
- 1271-24-5
- Chemical Name:
- Chromocene
- Synonyms
- CHROMOCENE;Chromocene,95%;Bis(cyclopentadienyl)chrom;dicyclopentadienyl-chromiu;dicyclopentadienylchromium;bis(cyclopentadiene)chromium;Bis(cyclopentadienyl)cadmium;BIS(CYCLOPENTADIENYL)CHROMIUM;di-pi-cyclopentadienyl-chromiu;Chromocene ISO 9001:2015 REACH
- CBNumber:
- CB8708085
- Molecular Formula:
- C10H10Cr10*
- Molecular Weight:
- 182.18
- MOL File:
- 1271-24-5.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/4/23 13:52:06
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
Risk and Safety Statements
Symbol(GHS) | ![]() ![]() GHS05,GHS07 |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
Signal word | Danger | |||||||||
Hazard statements | H302+H312+H332-H314-H317 | |||||||||
Precautionary statements | P260-P280-P301+P312-P303+P361+P353-P304+P340+P310-P305+P351+P338 | |||||||||
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 | |||||||||
NFPA 704 |
|
Chromocene Chemical Properties,Uses,Production
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
1of2
chevron_rightPreparation Products
Supplier | Tel | Country | ProdList | Advantage | Inquiry |
---|---|---|---|---|---|
Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 | China | 29798 | 60 | Inquiry |
Tianjin Zhongxin Chemtech Co., Ltd. | +86-022-66880623 +8618622897568 | China | 562 | 58 | Inquiry |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 | China | 49391 | 58 | Inquiry |
career henan chemical co | +86-0371-86658258 +8613203830695 | China | 29826 | 58 | Inquiry |
Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 | China | 34571 | 58 | Inquiry |
Xi'an MC Biotech, Co., Ltd. | 029-89275612 +8618991951683 | China | 2255 | 58 | Inquiry |
Shaanxi Dideu Medichem Co. Ltd | +86-029-89586680 +86-18192503167 | China | 9030 | 58 | Inquiry |
Alfa Chemistry | +1-5166625404 | United States | 21317 | 58 | Inquiry |
Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503259 +86-19930503259 | China | 18438 | 58 | Inquiry |
SUZHOU SENFEIDA CHEMICAL CO.,LTD | +86-0512-83500002 +8615195660023 | China | 23053 | 58 | Inquiry |