Heavy minerals definition

Synonyms Heavy mineral oil Light mineral oil Liquid paraffin Liquid petrolatum Mineral oil, white Oil mist, mineral Paraffin oil Paraffinum liquidum Petrolatum liquid Petroleum oil White mineral oil White oil Definition Liq. mixture of hydrocarbons obtained from petroleum by intensive treatment with sulfuric acid and oleum, or by hydrogenation, or a combination consists of predominantly C15-50 sat. hydrocarbons Properties Colorless transparent oily liq., odorless, tasteless insol. in water, alcohol sol, in benzene, chloroform, ether, petrol, ether, carbon disulfide, volatile oils dens, 0,83-0,86 (light), 0.875-0.905 (heavy) flash pt. (OC) 444 F surf tens. < 35 dynes/cm... 

In geological formations, the content of heavy minerals may vary from 0 to 100%, and there is a tendency for some heavy mineral species to occur preferentially in certain kinds of rock. In any rock the minerals may be divided into primary and secondary rock minerals according to their origin. Primary rock minerals were formed at the same time as the rock containing them, while secondary rock minerals were formed as a result of reactions taking place within the host rock at some time after its formation. Rock-forming minerals may also be classified as essential or accessory. Essential minerals are those implied in the definition of the rock name, while accessory minerals are additional to the above definition, so that their absence would not necessitate a change in the rock name. Heavy minerals as they occur in rocks may be essential or accessory they are usually primary, but occasionally they are secondary. 

CAS 64742-52-5 EINECS/ELINCS 265-155-0 Synonyms Distillates (petroleum), hydroteated (mild) heavy naphthenic Distillates (petroleum), hydrotreated heavy naphthenic Hydrotreated heavy naphthenic distillate Hydrotreated (mild) heavy naphthenic distillate Mineral oil, petroleum distillates, hydrotreated (mild) heavy naphthenic Petroleum distillates, hydrotreated (mild) heavy naphthenic Ciassification Petroleum distillate Definition Complex combination of hydrocarbons obtained by treating a petroleum fraction with hydrogen in the presence of a catalyst consists of predominantly C20-50 hydrocarbons contains relatively few normal paraffins Properties B.p. 350 C... 

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