Question

СРОЧНО!!! Как из угля и оксида кальция получить уксусный альдегид?

Answer 1

CaO+3C=CaC2+CO
CaC2+2H2O=Ca(OH)2+C2H2
C2H2+H2O=CH3CHO

Answer 2

Obtaining Acetic Aldehyde from Coal and Calcium Oxide

To obtain acetic aldehyde from coal and calcium oxide, the following steps can be taken:

1. Preparation of Calcium Carbide from Coal and Calcium Oxide: - Coal and calcium oxide are used to produce calcium carbide through a process called the "electric-arc furnace method" or "calcium carbide method".

2. Reaction of Calcium Carbide with Water to Produce Acetylene: - Calcium carbide reacts with water to produce acetylene gas and calcium hydroxide.

3. Conversion of Acetylene to Acetic Aldehyde: - Acetylene can be converted to acetic aldehyde through various chemical processes, such as the partial oxidation of acetylene or the Wacker process.

4. Further Refinement and Purification: - The acetic aldehyde produced may undergo further refinement and purification processes to obtain the desired quality and purity.

It's important to note that the processes involved in chemical synthesis require careful handling and adherence to safety protocols due to the reactive nature of the substances involved.

Please ensure to consult with a qualified chemist or chemical engineer before attempting any chemical synthesis processes.

If you need more detailed information on any specific step or aspect of the process, feel free to ask!