Once a compound has been isolated, a chemist needs to make sure that it is the d

Question

Once a compound has been isolated, a chemist needs to make sure that it is the desired product and that it is pure. Using the mass of a solid isolated to determine a percent yield is meaningless if it is not the desired product! You will check the purity of your compound by determining its melting point and comparing it to the literature value for cholesterol nominate. You must find the literature values for 2-acetonaphthone, cholesterol and cholesterol nominate (also known as cholesterol pelargonate), as quoted by one of the chemical companies who regularly make them; Sigma Aldrich. Once you found these values, you should entered them into page E4-8 of your worksheets. Based on the information on the Sigma website, what is the melting point for cholesterol nominate (also called cholesterol pelargonate)? Give your answer in degree C, but do not include units in your answer.

Explanation / Answer

In SIGMA-ALDRICH website, the melting point for cholesteryl nonanoate (also called Cholesteryl pelargonate is given 74-77 °C(lit.)

The link for the page is:

http://www.sigmaaldrich.com/catalog/product/aldrich/c78801?lang=en&region=IN

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