Potassium perchlorate molecular weight

Molecular weight 211 63f colourless tesseral crystals, specific gravity 2 986 which is 1. times larger than that of potassium nitrate, and 1.2 times larger than that of potassium perchlorate. Thus the large density is one of the remarkable nature of strontium nitrate. It melts at... 

There are two obvious limitations to the use of surfactants in preparative chemistry. The first is that the high molecular weight of surfactants makes it impracticable to use them in large excess over reactants, and second, surfactants complicate product isolation. The isolation problem can often be solved by precipitating the surfactant, e.g., alkyl sulfates can often be precipitated from water as their potassium salts, or alkylammonium ions as their perchlorates, but both limitations are neatly solved using the two-phase system of phase-transfer catalysis. 

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