环丁砜 Sulfolane
CAS No.: 126-33-0
molecular formula ：C4H8O2S
molecular weight: 120.17
Application：
It is an excellent solvent. It can be used to extract aromatic hydrocarbons from aliphatic hydrocarbons and remove acidic gases from gas mixtures. Sulfolane can be used as a solvent for polymer compounds such as polyacrylonitrile, acrylonitrile copolymer, polyfluoroethylene, etc., for spinning, film manufacturing, etc. It can also be used as plasticizer of cellulose ether, polyvinyl alcohol, polyethylene, polyvinyl chloride, polyamide, etc., and additive for acrylic fiber spinning. Others can also be used to separate fatty acids, extract non cellulose components from wood, etc. Because of its high boiling point, good thermal stability and non corrosivity, sulfolane can be used as a carrier for condensers. The properties such as corrosion resistance, flame resistance, thermal stability and viscosity can be improved by adding it to the press oil.
是一种优良的溶剂。可用于从脂肪烃中萃取芳香烃，从气体混合物中除去酸性气体。环丁砜可用作高分子化合物如聚丙烯腈、丙烯腈共聚物、聚氟乙烯等的溶剂，用于纺丝，制造胶片等。还可用作纤维素醚、聚乙烯醇、聚乙烯、聚氯乙烯、聚酰胺等的增塑剂，丙烯酸纤维纺丝的添加剂。其他还可用于脂肪酸的分离，从木材中萃取非纤维素成分等。由于环丁砜沸点高，热稳定性好，无腐蚀性，可用作冷凝器载体。添加到压榨机油中可以改进耐腐蚀性、防燃性、热稳定性、黏度等性质。
Property | Units | Specifications | Mathod | Results |
Density @ 30°C | g/ml | 1.260-1.270 | ASTM D 4052 | 1.262 |
Appearance | Colourless to pale straw | Visual | pass | |
Sulfur | WT% | 26.0-27.0 | ASTM D129 | 26.5 |
Thermal Stability Test as SO2 | Mg/kg SO2 | 16 max. | UOP 599 | 3.9 |
Water | % (m/m) | 3 max. | 1UOP 481 | 2.69 |
Ash | WT% | 0.01 max. | ASTM D482 | 0.002 |
5% Distil off temperature | Deg.C | 282 min. | ASTM 1078 | 285.2 |
95% Distil off temperature | Deg.C | 288 max. | ASTM 1078 | 285.5 |
Sulfolene-2-dry basis | % (m/m) | 0.1 max. | UOP 608 | 0.01 |
Isopropyl Sulfolanyl ether | WT% | 0.01 max. | UOP 608 | Nil |
PH 50/50 by Volume Sulfolane/water | --- | 7.5-10 | ASTM E70 | 8.36 |
Purity-Dry Basis | % (m/m) | 99.5 min. | UOP 608 | 99.9 |
Package: 200L/drum, IBC, Isotank