ChemicalBook >> CAS DataBase List >>Chromocene
Chromocene
- 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
- MDL Number:
- MFCD00013750
- MOL File:
- 1271-24-5.mol
- MSDS File:
- SDS
Last updated:2023-04-23 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 |
| EWG's Food Scores | 1 |
| FDA UNII | FI251W8B1L |
| 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 price More Price(11)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 381004 | Bis(cyclopentadienyl)chromium(II) 95% | 1271-24-5 | 1g | $134 | 2024-03-01 | Buy |
| Alfa Aesar | 043177 | Bis(cyclopentadienyl)chromium, sublimed, 97+% | 1271-24-5 | 1g | $125.65 | 2024-03-01 | Buy |
| Alfa Aesar | 043177 | Bis(cyclopentadienyl)chromium, sublimed, 97+% | 1271-24-5 | 5g | $461.65 | 2024-03-01 | Buy |
| Strem Chemicals | 24-0135 | Bis(cyclopentadienyl)chromium, min. 95%, sublimed (Chromocene) | 1271-24-5 | 1g | $115 | 2024-03-01 | Buy |
| Strem Chemicals | 24-0135 | Bis(cyclopentadienyl)chromium, min. 95%, sublimed (Chromocene) | 1271-24-5 | 5g | $457 | 2024-03-01 | Buy |
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
Preparation Products
Global( 84)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 | sales@capotchem.com | China | 29797 | 60 |
| Tianjin Zhongxin Chemtech Co., Ltd. | +86-022-66880623 +8618622897568 | sales@tjzxchem.com | China | 559 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 47465 | 58 |
| career henan chemical co | +86-0371-86658258 15093356674; | factory@coreychem.com | China | 29826 | 58 |
| Antai Fine Chemical Technology Co.,Limited | 18503026267 | info@antaichem.com | CHINA | 9641 | 58 |
| Zhengzhou Alfa Chemical Co.,Ltd | +8618530059196 | sale04@alfachem.cn | China | 12468 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 | sales@tnjchem.com | China | 34572 | 58 |
| Hunan russell chemicals technology co ltd | 731-88557738 +8613739093081 | sales01@russellchem.com | CHINA | 291 | 58 |
| Xi'an MC Biotech, Co., Ltd. | 029-89275612 +8618991951683 | mcbio_sales@163.com | China | 2255 | 58 |
View Lastest Price from Chromocene manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2020-01-18 | Chromocene
1271-24-5
|
US $3.00 / KG | 1KG | 98% | 1kg , 5kg, 50kg | Career Henan Chemical Co |
-
- Chromocene
1271-24-5
- US $3.00 / KG
- 98%
- Career Henan Chemical Co
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)
chromium,bis(η5-2,4-cyclopentadien-1-yl)-
di((eta-5)-cyclopentadienyl)chromium
Di(η5-cyclopentadienyl)chromium
dicyclopentadienyl-chromiu
dicyclopentadienylchromium
di-pi-cyclopentadienyl-chromiu
Bis(cyclopentadienyl)chromium, 97+%, sublimed (Chromocene)
Bis(cyclopentadienyl)chromium, 5% in toluene ,0%
Bis(cyclopentadienyl)chromium ,95%
Bis(cyclopentadienyl)chromium,min.95%,sublimed(Chromocene)
bis(cyclopentadienyl)chromium, sublimed
Bis(η5-cyclopentadienyl)chromium
BIS(CYCLOPENTADIENYL)CHROMIUM , SUBLIMED (CHROMOCENE)
Bis(ethylcyclopentadienyl)chromium 98%
BIS(ETHYLCYCLOPENTADIENYL)CHROMIUM98%
Bis(cyclopentadienyl)chromium, sublimed, 97+%
Chromocene, Di(cyclopentadienyl)chromium(II)
bis(eta5-cyclopenta-2,4-dien-1-yl)chromium
Bis(cyclopentadienyl)chromium, (Chromocene)
Bis(eta(5)-cyclopentadienyl)chromium
Chromocene,95%
bis(η5-cyclopenta-2,4-dien-1-yl)chromium
Di(cyclopentadienyl)chromium(II)
Bis(cyclopentadienyl)chroMiuM,95% subliMed (ChroMocene)
Bis(cyclopentadienyl)chromium 95% 5% in toluene
Bis(cyclopentadienyl)chromium 95% 5% in hexane
Bis(cyclopentadienyl)cadmium
Bis(cyclopentadienyl) chromium 8% In Toluene
Chromocene ISO 9001：2015 REACH
1271-24-5
C5H52Cr
CrC5H52
C10H10Cr
Catalysis and Inorganic Chemistry
Organometallics
metallocene
metallo-organic compound