甲硫醚
规格
| Cas Number | 75-18-3 |
| 规格或纯度 | ≥99% |
| 纯度 | ≥99% |
| 包装 | 500ml 或 100ml 或 10L 或 5L 或 1L 或 250ml 或 20L |
产品信息
| 别名 | 二甲基硫醚;DMS |
| 品牌 | 阿拉丁 |
| 溶解性 | Solubility in water: 2 g/L (20°C) Solubility in other solvents: Soluble in alcohol and ether |
| 过滤标签 | 含硫化合物,非杂环砌块 |
| 储存温度 | 2-8°C储存,充氩 |
| 运输条件 | 冰袋运输 |
| 描述 |
有不愉快气味。有挥发性。溶于乙醇和乙醚，不溶于水。易燃。低毒，半数致死量（大鼠，经口）535mg/kg。 气相色谱分析标准。有机合成。溶剂。城市煤气赋臭剂。涂料脱膜剂。电池低温防腐剂。药物渗透剂。农药制备。
二甲基硫醚 (DMS) 是一种从海洋中释放到大气中的生物硫化合物。它是全球硫循环的主要组成部分。在 681-723K 的静态系统中研究了二甲基硫醚在气相中的热分解行为。阐述了其在大气中光化学氧化的机理。用相对速率法和闪光光解技术测定了 OH 自由基与 DMS 气相反应的速率常数。微分拉曼截面 σ 测量了不同激发波长下的 DMS。DMS 在活性炭上的吸附是通过氢键作用进行的。
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| 英文描述 |
Dimethyl sulfide (DMS) is a biogenic sulfur compound that is released from the ocean to the atmosphere. It forms the main component of the global sulfur cycle. The thermal decomposition behavior of dimethyl sulfide in gas phase has been investigated in a static system at 681-723K. The mechanism of its photochemical oxidation in atmosphere has been described. The rate constant of the gas phase reaction between OH radicals and DMS have been determined by relative rate methods and flash photolysis technique. The differential Raman cross section, σDMS at different excitation wavelengths has been measured. The adsorption of DMS on activated carbons (ACs) has been reported to take place by hydrogen bonding.
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