TRICARBONYL(1,2,3,4-TETRAHYDRONAPHTHALENE)CHROMIUM - Names and Identifiers
Name | tricarbonyl(1,2,3,4-tetrahydronaphthalene) -chrom
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Synonyms | Einecs 235-274-2 tricarbonyl(1,2,3,4-tetrahydronaphthalene) -chrom 1,2,3,4-tetrahydronaphthalene chromium tricarbonyl TRICARBONYL(1,2,3,4-TETRAHYDRONAPHTHALENE)CHROMIUM tricarbonyl(1,2,3,4-tetrahydronaphthalene)chromium(0) tricarbonyl[(4a,5,6,7,8,8a-eta)-1,2,3,4-tetrahydronaphthalene]chromium
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CAS | 12154-63-1
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EINECS | 235-274-2 |
InChI | InChI=1/C10H12.3CO.Cr/c1-2-6-10-8-4-3-7-9(10)5-1;3*1-2;/h1-2,5-6H,3-4,7-8H2;;; |
TRICARBONYL(1,2,3,4-TETRAHYDRONAPHTHALENE)CHROMIUM - Physico-chemical Properties
Molecular Formula | C13H12CrO3
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Molar Mass | 268.23 |
Melting Point | 115-118°C(lit.) |
Boling Point | 210.3°C at 760 mmHg |
Flash Point | 77.2°C |
Vapor Presure | 0.281mmHg at 25°C |
TRICARBONYL(1,2,3,4-TETRAHYDRONAPHTHALENE)CHROMIUM - Risk and Safety
Hazard Symbols | Xn - Harmful
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Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38 - Irritating to eyes, respiratory system and skin.
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Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36 - Wear suitable protective clothing.
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UN IDs | 3282 |
WGK Germany | 3 |
Hazard Class | 6.1(b) |
Packing Group | III |
TRICARBONYL(1,2,3,4-TETRAHYDRONAPHTHALENE)CHROMIUM - Introduction
Chromium tricarbonyl (1,2,3,4-tetrahydronaphthalene) is an organometallic compound with the chemical formula Cr(CO)3(CH2)4C10H12, often referred to as chromium tricarbonyl. Its properties are as follows:
1. appearance: tricarbonyl chromium is a colorless crystal or white powder.
2. Melting point: about 93-96°C.
3. Solubility: tricarbonyl chromium soluble in inert solvents such as ether, tetrahydrofuran and kerosene, but almost insoluble in water.
The main uses of tricarbonyl chromium are as follows:
1. catalyst: tricarbonyl chromium can be used as a catalyst with an important application in organic synthesis. It can catalyze carbonylation reactions, cyclization reactions of olefins, etc.
There are two main methods for the preparation of tricarbonyl chromium:
1. Single-step method: Cr(CO)6 and 1,2,3,4-tetrahydronaphthalene are reacted in one step to prepare tricarbonyl chromium.
2. Two-step method: first, an intermediate is prepared by the reaction of Cr(CO)6 hydride with 1,2,3,4-tetrahydronaphthalene, and then tricarbonyl chromium is obtained by dehydrogenation reaction.
Safety information on chromium tricarbonyl:
1. toxicity: three carbonyl chromium has a certain toxicity, may cause damage to the human body. Exposure to or inhalation of chromium tricarbonyl may cause toxic symptoms.
2. combustion: three carbonyl chromium is flammable substances, must be away from the fire and oxygen.
3. Placement and storage: Tricarbonyl chromium should be stored in a dry, well-ventilated place, and away from combustibles.
4. use restrictions: the use of tricarbonyl chromium should follow the safety procedures of the laboratory, and wear appropriate protective equipment, such as gloves and goggles.
Last Update:2024-04-10 22:29:15