Experiment recording and processing

Experiment recording and processing
a total of 2.2g was added 4.0g of anthracene and maleic anhydride, an off-white solid product, the theoretical yield of 6.2g, group average yield 5.7g, the average yield of 91.9%, measured melting range of 264 ℃ -266 ℃.
Experiment Notes
1. maleic anhydride and its addition products are easily hydrolyzed to the corresponding dicarboxylic acid, it is used by all the instruments, reagents and solvents required drying, and pay attention to prevent water or steam into the reaction system.
2. When heated to reflux, with more foam appears, should control the reaction temperature and the reflux rate, prevent product loss.

結果 (英文) 2:

Recording and Processing Experiment
A Total of WAS added 2.2g of anthracene and 4.0 g of Maleic anhydride, AN OFF-White Solid Product, at The Theoretical a yield of 6.2g, Group Average 5.7 g of a yield, a yield of 91.9% at The Average, the Range of Measured Melting deg.] C -266 deg.] C 264.
Experiment the Notes
1. Maleic anhydride and the ITS are Easily Hydrolyzed Products's Addition to at The Corresponding dicarboxylic acid, IT IS Used by All at The Instruments, Reagents and Solvents required drying, and the Attention Pay to Prevent Water or Steam INTO at The Reaction System.
2. the When Heated to reflux, the with the Appears More Foam, SHOULD Control at The Reaction temperature and at The reflux Rate, Prevent Product Loss.

結果 (英文) 3:

实验记录与处理共2.2g是蒽和马来酸酐加入4.0g，一个白色的固体产品，对6.2g理论产量，平均产量5.7g组，平均收益率为91.9%，熔点264℃测量范围266℃。实验讲义1。马来酸酐及其添加产品易水解为相应的羧酸，它是由所有使用的仪器、试剂和溶剂所需的干燥，并注意防止水或蒸汽进入反应系统。2。当加热至回流时，用更多的泡沫出现，应控制反应温度和回流率，防止产品损失。