
1) Chemical mixture
Found on
https://www.crosswordclues.com/clue/demulsifier

Demulsifiers, or emulsion breakers, are a class of specialty chemicals used to separate emulsions (e.g. water in oil). They are commonly used in the processing of crude oil, which is typically produced along with significant quantities of saline water. This water (and salt) must be removed from the crude oil prior to refining. If the majority of t...
Found on
http://en.wikipedia.org/wiki/Demulsifier

An additive that promotes oil-water separation in lubricants that are exposed to water or steam
Found on
http://www.encyclo.co.uk/local/21121

Is a class of specialty chemicals used to separate components in emulsions from each other (water in oil). It is commonly used in the processing of crude oil, which is typically produced along with significant quantities of saline water. This water (and salt) must be removed from the crude oil prior to refining. If the majority of the water and sal...
Found on
https://www.encyclo.co.uk/local/22436
No exact match found.