Cleaning intermediate

Chlorinated ethanes are chemical compounds of the general structure C2HxCl x(X 5) and are widely used in the industrial world as solvents, chemical intermediates, cleaning fluids, fumigants, and for numerous other purposes including uses in petroleum-refining. Likewise,.the chemicals in the class of compounds known as polychlorinated biphenyls Cl (2< < 10) (PCBs) have... 

In contrast to the Jacobsen conditions, application of the Sharpless asymmetric dihydroxylation procedure [13, 15] on our substrate 5 gave much better overall performance. Chiral diol 22 could be prepared with 98-99% ee in isolated yields of 90% (Fig. 8). Moreover, since this diol was crystalline, it provided a convenient point for intermediate clean-up. 

Intermediate cleaning generally consists of subjecting the part to both caustic and acid... 

The Molten Salt Reactor Experiment Demonstrated Molten Salt Fueled Reactors And Intermediate Clean-Salt Heat-Transfer Loops... 

Intermediate cleaning is the process of removing soil from a surface by physical, mechanical, or chemical means without altering the material chemically. Small amoimts of parent material may be removed in this process. Examples include grit blasting (most common... 

Chemical treatment is the process of treating a clean surface by chemical means. The chemical nature of the surface is changed to improve its adhesion qualities. Solvent cleaning should always precede chemical treatment and, frequently, intermediate cleaning should be used in between. ... 

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