Lab notes Essay

Lab notes

Chemistry 207 (Lab # 1)

9/11/12

Experiment #1: Cooperative Identity of an Organic and natural Solid A. What has to be done:

In this laboratory, one is going to identify the identity of the colorless organic solid simply by experimentally finding the physical houses of the solid. Such homes include burning point, merged melting level, and MARCHAR spectrum. With these homes, one can compare their particular results from the organic sound to see if any other classmates have a similar unknown sample. B. Timeline:

Step one: Get a sample in the unknown clear organic solid. (make sure it is about 1-2mm in amount)/ Get hold of materials to grind the solid in fine fragments so that it can fit into the capillary pipe. Step two: Obtain materials that need to be used to discover the shedding point with the unknown colorless organic solid (Mel-temp apparatus). Step three: Following your solid is very grinded, serve the fragments into the capillary tube of the Mel-temp device (make sure all of the fragments are at underneath of the tube). Step four: Switch on the device to adjust the warmth setting so that there is a stable heating charge of the stable in order for the melting stage not to become passed. (Usually heating level should be in increments of 1-2 levels per minute if the solid is near to reach its preferred melting point). Step five: When burning point can be reached, record the shedding point and also the melting level range. Stage six: Evaluate the burning point in the unknown solid to the burning point in the unknown hues of various other students. Stage seven: Perform mixed shedding point checks with the blend of the not known solid as well as the unknown solids of learners that have comparable melting points/ clean up stop where the burning point with the unknown by itself was carried out. Step eight: Record outcomes

Step nine: Step up pertaining to the TLC analysis with the unknown clear solid/ tidy up previous train station where merged melting point was conducted. (note: multiple solvents might have to be used...