司盘 20，常温下为黄色至琥珀色粘稠液体或膏体。有特殊气味，稍溶于异丙醇、四氯乙烯、二甲苯、棉子油、矿物油中，微溶于液体石蜡，不溶于水，分散后呈乳状溶液。具有乳化、润滑、稳定、消泡等性能，属 W/O 型乳化剂，HLB 值 8.6。

S20,Yellow to amber viscous liquid or paste at room temperature.Have a particular smell,slightly soluble in isopropanol, tetrachloroethylene, xylene, cottonseed oil, mineral oil,slightly soluble in liquid paraffin, insoluble in water,dispersed in a milky solution.With the properties of emulsification, lubrication, stability and defoaming, and belongs to W/O type emulsifier.HLB is 8.6.