| CAS: | 75-66-1 |
| MF: | C4H10S |
| MW: | 90.19 |
| EINECS: | 200-890-2 |
| Product Categories: |
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| Mol File: | 75-66-1.mol |
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| 2-Methyl-2-propanethiol Chemical Properties |
| Melting point | -1.1 °C |
| Boiling point | 62-65 °C(lit.) |
| density | 0.8 g/mL at 25 °C(lit.) |
| vapor density | 3.1 (vs air) |
| vapor pressure | 303.5 mm Hg ( 37.7 °C) |
| refractive index | n20/D 1.423(lit.) |
| Fp | −12 °F |
| storage temp. | Flammables area |
| solubility | 1.47g/l slightly soluble |
| pka | pK1:11.22 (25°C,μ=0.1) |
| form | Liquid |
| color | Clear colorless |
| Odor | sulfury |
| Odor Threshold | 0.000029ppm |
| Water Solubility | Slightly soluble in water |
| Merck | 14,1579 |
| BRN | 505947 |
| Stability: | Stable. Flammable - note low flashpoint. Incompatible with strong oxidizing agents. |
| LogP | 2.206 (est) |
| CAS DataBase Reference | 75-66-1(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Propanethiol, 2-methyl-(75-66-1) |
| EPA Substance Registry System | 2-Propanethiol, 2-methyl- (75-66-1) |
| 2-Methyl-2-propanethiol Usage And Synthesis |
| Description | tert-Butylthiol, also known as 2-methyl propane-2-thiol, 2- methyl-2-propane thiol, tert-butyl mercaptan (TBM), and t-BuSH, is an organo sulfur compound with the formula (CH3)3CSH. This thiol may have been used as a flavoring agent, as an odorant for natural gas (which is odorless), and also in a wide range of organic reactions. |
| Chemical Properties | liquid with an exceedingly unpleasant smell |
| Uses | 2-Methyl-2-propanethiol was used in reaction of 2-methyl-2-propanethiol on Mo(110) using temperature programmed reaction, high resolution electron enegy loss and X-ray photoelectron spectroscopies. It was used in the synthesis of chain-transfer agents for reversible addition-fragmentation chain-transfer copolymerization of vinylidene chloride and methyl acrylate. |
| Uses | Tert-Butylthiol is the main ingredient in many gas odorant blends. It is always utilized as a blend of other compounds, typically dimethyl sulfide, methyl ethyl sulfide, tetrahydrothiophene or other mercaptans (isopropyl mercaptan, sec-butyl mercaptan and/or n-butyl mercaptan, due to its rather high melting point of 273 K. These blends are used only with natural gas and not propane, as the boiling points of these blends and propane are quite different. As propane is delivered as a liquid and vaporizes to gas when being delivered to the appliance, the vapor liquid equilibrium would substantially reduce the amount of odorant blend in the vapor.
Tert - Butyl thiol has been listed on the European Food Safety Authority (FL-no: 12.174) as a flavor additive. There is no indication of what flavor or flavors it may have been used in. It has been removed from this list. |
| Preparation | tert-Butyl thiol likely does not occur naturally, but at least one publication has listed it as a very minor component of cooked potatoes. The compound was first prepared in 1890 by Leonard Dobbin by the reaction of zinc sulfide and t-butyl chloride.
The compound was later prepared in 1932 by the reaction of the Grignard reagent, t-BuMgCl, with sulfur to give the corresponding thiolate, followed by hydrolysis. This preparation is shown below:
t-BuMgCl + S → t-BuSMgCl
t-BuSMgCl + H2O → t-BuSH + Mg(OH)Cl
It is currently prepared industrially by the reaction of isobutylene with hydrogen sulfide over a clay (silica alumina) catalyst. |
Packing &shipping&Payment
Packing:25kg/drum
Shipping:by sea or by air
Payment:T/T,western union,moneygram
Packaging Details drum
Port:Tianjin
Lead Time :
| Quantity(Kilograms) | 1 - 10000 | >10000 |
| Est. Time(days) | 5 | To be negotiated |
Company information
Hebei Mojin Biotechnology Co., Ltd, Our company is a professional in 4'-Methylacetophenone,Levamisole hydrochloride ,N-Methylformamide and other chemical reagents research and development production enterprises. Our business covers more than 30 countries, most of the big customers come from Europe, America and other countries in the world, we can guarantee the quality and price. In recent decades, with the efforts of all employees, we have established many cooperative companies in shandong, henan, guangdong and other places. Our corporate purpose is based on the market, enhance the strength, take the road of scientific and environmental sustainable development, relying on the country. Technology r & d center, increase the investment in r & d, based on the domestic market, expand the international market, manufacturing quality products, sincere service to the society, into a modern, ecological, scientific and technological enterprise world.
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