化学名称 硫醇
化学文摘社编号： 126-33-0
浓度或浓度范围：≥99.6%
外观：无色或淡黄色透明液体
申请说明
在化工生产中，它是卤化、甲基化、有机合成、缩合和聚合反应的溶剂。在石化工业中，它可用作提取芳香烃的溶剂、聚合物纺丝或成膜的溶剂，以及橡胶和塑料的溶剂。此外，在纺织印染工业中，它还可用作染色助剂，赋予织物鲜艳的色彩和光泽。在化工生产中，它是卤化、甲基化、有机合成、缩合和聚合反应的溶剂。在石化工业中，它可用作提取芳香烃的溶剂、聚合物纺丝或薄膜涂层的溶剂以及橡胶和塑料的溶剂。此外，在纺织印染工业中，它还可用作染色和印花助剂，赋予织物鲜艳的色彩和光泽。
| 密度（30°C） kg/m³ | 1260-1270 | 1262 | ASTM D4052 |
| 蒸馏范围 5% 蒸馏温度 °C | ≥282 | 285 | ASTM D1078 |
| 蒸馏范围 95% 蒸馏温度 °C | <288 | 286 | ASTM D1078 |
| 耐热性 mgSO₂/kg | <16 | 2.79 | UOP 599 |
| 水分，Wt% | S3.0 | 0.015 | UOP 481 |
| 硫含量，Wt% | 26.0-27.0 | 26.5 | ASTM D129 |
| 灰烬、Wt% | ≤0.1 | 0.002 | ASTM D482 |
| 2-环丁烯砜，Wt% | ≤0.2 | 0.01 | UOP 608 |
| 异丙基环丁基砜醚，Wt% | <0.1 | 无 | UOP 608 |
| 纯度（干基），Wt% | >99.6 | 99.97 | UOP 608 |
1. Natural Gas and Refining Industry—Aromatic Extraction Solvent
This represents its primary application. Sulfonic acid lactones, particularly those used in the cyclobutanesulfonic acid method (Sulfinol process) with organic amines such as diisopropanolamine, are extensively employed for:
Natural Gas Desulfurization and Decarbonization: Removing hydrogen sulfide (H₂S) and carbon dioxide (CO₂) from natural gas and refinery gases.
Aromatic Extraction: Efficiently extracting and separating BTX aromatics (benzene, toluene, xylene) from materials like catalytic reforming gasoline and coal tar. Their selectivity and solubility surpass traditional solvents.
2. Chemical Synthesis and Reaction Solvent
High-performance solvent: Due to its high polarity and wide liquid range, it is commonly used as a non-protonic polar solvent in various chemical reactions, particularly in processes requiring high temperatures or special dissolution environments such as polymerization, alkylation, and extraction distillation.
Lithium Battery Electrolyte Additive: Small additions enhance electrolyte stability, improve low-temperature battery performance, and extend cycle life.
Polymer and Plastics Industry: Used as a synthesis solvent for high-performance engineering plastics like polyarylsulfones and polyimides, and for purifying aromatic resins.
3. Electronics Industry
Semiconductor and Liquid Crystal Display (LCD) Manufacturing: Serves as a photoresist stripper and precision cleaning agent, effectively removing organic residues and particles from silicon wafers or panels with minimal equipment corrosion.
4. Pharmaceutical and Agrochemical Industries
Intermediates and Solvents: Used as intermediates or reaction solvents in synthesizing certain pharmaceuticals or pesticides.
Extraction and Separation: Used for extracting and purifying natural or synthetic products.
5. Other Special Applications
Industrial and Textile Cleaning: Used for cleaning stubborn oil stains, tar, and polymers.
Gas Purification and Separation: Besides acidic gases, it can also be used to separate other gas mixtures.