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Purity :97
Compound | 18-crown-6 | ||||
---|---|---|---|---|---|
CAS No. | 17455-13-9 | Catalog No. | 50 | Brand | |
Purity | 97 | Packing | 1ton | Grade | |
Lead Time | 5Day (s) | Origin | Loading Port |
Boiling Point | 395.8ºC at 760 mmHg |
---|---|
Stability | Stable. Incompatible with strong acids, strong oxidizing agents. |
Storage Condition | Store at 0-5ºC |
Appearance & Physical State | Colorless crystals |
Water Solubility | SOLUBLE |
Flash Point | >110ºC |
Refractive Index | 1.4577 (50ºC) |
Density | 0.995 g/cm3 |
Melting Point | 36-40ºC |
Vapor Pressure | 4.09E-06mmHg at 25°C |
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Description
18-Crown-6 is an organic compound with the formula [C2H4O]6 and the IUPAC name of 1,4,7,10,13,16-hexaoxacyclooctadecane. It is a white, hygroscopic crystalline solid with a low melting point. Like other crown ethers, 18-crown-6 functions as a ligand for some metal cations with a particular affinity for potassium cations (binding constant in methanol: 106M−1). The point group of 18-crown-6 is S6. The dipole moment of 18-crown-6 varies in different solvent and under different temperature. Under 25°C, the dipole moment of 18-crown-6 is 2.76 ± 0.06 D in cyclohexane and 2.73 ± 0.02 in benzene. The synthesis of the crown ethers led to the awarding of the Nobel Prize in Chemistry to Charles J. Pedersen.
Basic Info
Chemical Name 18-crown-6
Synonyms
1,4,7,10,13,16-Hexaoxacyclooctadecane;
[18]crown-6;
18-Crown-6;
18-Crown 6-Ether;
18-Crown ether-6;
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CAS No. 17455-13-9
Molecular Formula C12H24O6
Molecular Weight 264.31500
PSA 55.38000
LogP 0.09960
Properties
Appearance & Physical State Colorless crystals
Density 0.995 g/cm3
Boiling Point 395.8ºC at 760 mmHg
Melting Point 36-40ºC
Flash Point >110ºC
Refractive Index 1.4577 (50ºC)
Water Solubility SOLUBLE
Stability Stable. Incompatible with strong acids, strong oxidizing agents.
Storage Condition Store at 0-5ºC
Vapor Pressure 4.09E-06mmHg at 25°C
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