The presence of these two peaks for an aromatic nitro group is critical 1350 and
ID: 986760 • Letter: T
Question
The presence of these two peaks for an aromatic nitro group is critical 1350 and 1 aromatic ring. will be used for supporting the nitrati point will be used to characterize the to purify your product. Infrared spectroscopy an product. H SO HNO Methyl benzoate methyl m-nitrobenzoate M. W. dCelmIn M.PLCCDA BP.cC Refractive Index Substance 136.2 1.088 12 Methyl benzoate 199 1.5160 13 Methyl 2-nitrobenzoate 181.2 1.5340 Methyl 3-nitrobenzoate 181.2 79 95 Methyl 4-nitrobenzoate 181.2 Other Substances Nitrating reagent (1:1 Concentrated Nitric acidconcentrated sulfuric acid) Reagent alcohol Safety goggles are required for performing this lab exercise. Minimize the breathing ofany vapors skin contact of chemical reagents. agent. Hand The Nitrating reagent is very strongly acidic and a very strong oridizing and tre extreme care. Wash any skin exposed to the nitrating reagent immediately, paste of sodium bicarbonate. Handle hot lab items with proper protection. Dispose chemical waste according to your instructor's directions. Wash your hands thoroughly when the lab exercise has been completed. Synthesis of Methyl m-Nitrobenzoate containing a spin vane. 1. Place 2 mL of nitrating reagent in a 5-mL, conical vial CAUTION ACIDMIXTUREISHIGHLY AGGRESSIVE& CORROSIVE 2. Add 300 uL of methyl benzoate into the 5-mL vial and seal vial with green cap and ex septum immediately. 30 minutes at room temperature. area dion misture strongly forExplanation / Answer
The melting point determination of a compound is one of the simplest and easiest of techniques to do. Oh, and it’s also one of the more important techniques too. Why? Because it can give you a good idea whether or not your sample is pure.
The melting point of a solid substance is a physical property that can be measured as a method of identification. This means that under the same melting point, we actually mean melting point range. A melting point range starts from the temperature at which the first drop of liquid appears and ends at the temperature at which the sample has completely liquefied.
So the melting point data which is in accordance with the experimental value implies the purity of the compound as well as the impurity within the compound.
If the compound is 100% pure the melting point will be same as he experimental value and will have a narrow range of MP
Thank you hope you got the answer
Source -http://classes.uleth.ca/201101/chem2500a/Lab/07-MELTING%20POINT.pdf
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