The disclosure describes a composition, process and apparatus for soil remediation on site using an encapsulating agent to separate contaminants from soil. The contaminated soil is saturated with the encapsulating agent, creating an immediate reaction causing the contaminants to dissociate from the soil in favor of association with the encapsulating agent. The encapsulating agent attracts and associates with the contaminants but do not dissolve them, resulting in a clearly-defined heterogeneous mixture with at least three phases, wherein said phases include contaminants at the top of the mixture, encapsulation agent at the middle and cleansed soil at the bottom of the mixture.