Dimethylsila-11-crown-4 - Names and Identifiers
Name | Dimethylsila-11-crown-4
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Synonyms | Dimethylsila-11-crown-4 DIMETHYLSILA-11-CROWN-4 1,1-DIMETHYLSILA-11-CROWN-4 Dimethylsilacrownphasetransfercatalyst 2,2-dimethyl-1,3,6,9-tetraoxa-2-silacycloundecane 1,3,6,9-Tetraoxa-2-silacycloundecane, 2,2-dimethyl-
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CAS | 18339-94-1
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EINECS | 242-221-7 |
InChI | InChI=1/C8H18O4Si/c1-13(2)11-7-5-9-3-4-10-6-8-12-13/h3-8H2,1-2H3 |
Dimethylsila-11-crown-4 - Physico-chemical Properties
Molecular Formula | C8H18O4Si
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Molar Mass | 206.31 |
Density | 1.07 |
Boling Point | 96 °C |
Flash Point | 77°C |
Vapor Presure | 0.0293mmHg at 25°C |
Specific Gravity | 1.07 |
Sensitive | 7: reacts slowly with moisture/water |
Refractive Index | 1.4487 |
Dimethylsila-11-crown-4 - Risk and Safety
Risk Codes | R20 - Harmful by inhalation
R36/37/38 - Irritating to eyes, respiratory system and skin.
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Safety Description | S23 - Do not breathe vapour.
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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TSCA | No |
Dimethylsila-11-crown-4 - Introduction
Dimethylsila-11-crown-4 is an organic compound with the chemical formula C9H20O6Si. The following is a description of the properties, uses, preparation and safety information of the compound:
Nature:
Dimethylsila-11-crown-4 is a colorless liquid with low volatility. It has high solubility and can be dissolved in both water and organic solvents. It has a melting point of -25°C and a boiling point of 144-145°C. The compound is more stable to heat and light.
Use:
Dimethylsila-11-crown-4 are commonly used as extractants and complexing reagents for metal ions. It can selectively extract ammonium, lanthanum, terbium, gadolinium, yttrium and other rare earth elements and transition metal ions. It can also be used for the determination of transition metal ions in electrolytes. In addition, it can also be used as a solubilizer or an antipenetration agent for drugs.
Method:
Dimethylsila-11-crown-4 can be obtained by the reaction of alkylated silanol and chloroethyl ether. The specific preparation method includes that the molar ratio of silanol to chloroethyl ether is 1:4, and the reaction is carried out at 60-70 ° C. For several hours in the presence of a base to generate the target product. The preparation process needs to be carried out under inert gas to avoid harm to the human body and the environment.
Safety Information:
Dimethylsila-11-crown-4 may cause irritation to the eyes, skin and respiratory system. During operation, it is recommended to wear appropriate protective equipment, such as gloves, goggles and protective masks. Avoid exposure to fire and high temperature. If inhaled or exposed to the compound, please clean and dispose of it promptly. Any operation using this compound should be carried out in a well-ventilated area and should follow the correct laboratory practice. Contact with strong oxidizing agents should be avoided during treatment. If you have any discomfort or questions, please seek medical attention immediately.
Last Update:2024-04-09 15:17:54