从 XS(新疆石油磺酸盐)、正丁醇、正癸烷和水(或者盐水)的微乳液似三元相图出发,选择相应的点,测定其微乳液密度、折光指数。根据 R=(1/p)〔(n_D~2—1)/(n_D~2+2)〕公式,得到它们相应的特性参数 R。本文着重研究 R 与微乳液体系的组成、温度、盐度的关系,从中找出规律并对其进行解释和理论探讨。本文进一步证实了 Derderian 关于 R=R~*=0.263±0.004厘米~3/克时体系即为中相微乳液的结论。 Starting from the ternary phase diagram of microemulsion of XS (Xinjiang petroleum sulfonate), n-butanol, n-decane and water (or brine), the corresponding points were selected and their microemulsion density and refractive index were measured. According to the formula of R = (1 / p) [(n_D ~ 2-1) / (n_D ~ 2 + 2)], their corresponding characteristic parameters R are obtained. This article focuses on the R and microemulsion system composition, temperature, salinity, find out the law and its interpretation and theoretical discussion. This article further confirms Derderian R = R * * = 0.263 ± 0.004 cm ~ 3 / g when the system is the conclusion of the phase emulsion.