By the improved method, proglumide was synthesized in acetic anhydride with toluene as the dehydrating agent.
本文报道合成抗溃疡药丙谷胺的改进工艺。
Dehydrating agent
英语例句库
英语百科
Desiccant
![Canisters are commonly filled with silica gel and other molecular sieves used as desiccant in drug containers to keep contents dry; shown here next to a U.S. quarter for size comparison.](/Images/godic/202501/08/Molecular_Sieve55340.jpg")
![Silica gel in a sachet or porous packet](/Images/godic/202501/08/Silica_gel_bag_open_with_beads5341.jpg")
![Indicating silica gel](/Images/godic/202501/08/Indicating-silica-gel5341.png")
![Toluene is refluxed with sodium and benzophenone to produce dry, oxygen-free toluene. The toluene is dry and oxygen free when the intense blue coloration from the benzophenone ketyl radical is observed.](/Images/godic/202501/08/Toluene_with_sodium-benzophenone5341.jpg")
A desiccant is a hygroscopic substance that induces or sustains a state of dryness (desiccation) in its vicinity. Commonly encountered pre-packaged desiccants are solids that adsorb water. Desiccants for specialized purposes may be in forms other than solid, and may work through other principles, such as chemical bonding of water molecules. They are commonly encountered in foods to retain crispness. Industrially, desiccants are widely used to control the level of water in gas streams.
- halorellas
- Halorhabdus
- Halorhodopsin
- Halorhodopsin Chromoprotein
- Halorhodopsins
- Halorhodospira
- Halorhodospira halophila
- haloritid
- haloritids
- halorn
- Halorosellinia oceanica
- Halorrhagidaceae
- halo rubber
- Halorubrum
- Halosaccion
- halosaline
- halo sap
- halosarpheia aquadulcis
- halo saturninus
- Halosaurid
- Halosauridae
- halosaurids
- halosauriformes
- Halosauropsis macrochir
- Halosaurus