4946-13-8
4-Ethylthiophenol
CAS: 4946-13-8
Molecular Formula: C8H10S
4946-13-8 - Names and Identifiers
| Name | 4-Ethylthiophenol |
| Synonyms | 4-ETHYLTHIOPHENOL 4-Ethylthiophenol 4-Ethylbenzenethiol 4-ETHYLBENZENETHIOL 4-ethylbenzenethiolate 4-Ethylbenzenethiol, 4-Ethylphenyl mercaptan |
| CAS | 4946-13-8 |
| EINECS | 670-930-5 |
| InChI | InChI=1/C8H10S/c1-2-7-3-5-8(9)6-4-7/h3-6,9H,2H2,1H3/p-1 |
4946-13-8 - Physico-chemical Properties
| Molecular Formula | C8H10S |
| Molar Mass | 138.23 |
| Density | 1.02 |
| Melting Point | -30°C (estimate) |
| Boling Point | 119 °C |
| Flash Point | 119-120°C/30mm |
| Vapor Presure | 0.262mmHg at 25°C |
| BRN | 1905734 |
| pKa | 6.84±0.10(Predicted) |
| Sensitive | Air Sensitive |
| Refractive Index | 1.563 |
4946-13-8 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| 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. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S36/37 - Wear suitable protective clothing and gloves. S23 - Do not breathe vapour. |
| UN IDs | 2810 |
| HS Code | 29309090 |
| Hazard Class | 6.1 |
4946-13-8 - Reference Information
| Use | 4-ethylthiophenol is used as a research compound. |
| application | 4-ethylthiophenol is a thiophenol derivative. thiophenol derivatives have a wide range of uses and can be used to synthesize pesticides "Kewen Powder" and "Geoworm Phosphorus". It is also an intermediate and raw material for rubber accelerators, polymerization inhibitors, antioxidants and dyes; at the same time, it can also be used to produce local anesthetics, chloramphenicol substitutes, thiamphenicol, etc., which has important research value. |
| preparation | in an oxygen-free environment, add 1080g 4,4 '-diethyl phenylene sulfide to the preheating tank to preheat 4,4'-diethyl phenylene sulfide to 220 ℃, and then use a metering pump to pump 4,4 '-diethyl phenylene sulfide into a tubular reactor, A liquid flowmeter is used to control the flow rate of 4,4'-diethyl phenylene sulfide into the tubular reactor, hydrogen sulfide gas is introduced into the tubular reactor, and a gas flowmeter is used to control the flow rate of hydrogen sulfide gas into the tubular reactor, So that the hydrogen sulfide gas and 4,4'-diethyl phenylene sulfide are in contact with the tubular reactor at normal pressure at 350°C and react at equimolar. Among them, 4, the residence time of 4'-diethylphenylene sulfide and hydrogen sulfide in the tubular reactor is 3s; the product after the reaction is condensed and distilled under reduced pressure to obtain 1345g 4-ethylthiophenol. After calculation, the yield of 4-ethylthiophenol (yield = actual product quantity/theoretical product quantity * 100%) is 97.8%. The purity of the product is detected by gas chromatography, and the purity of the product is 99.2% by gas chromatography. |
Last Update：2024-04-09 19:05:04
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