excuse me, I'm synthesizing it and having some problems. could I use Na2WO4.2H2O instead of ammonium tungstate, and could I dissolve Se and Na2WO4 one-pot or seperately, could you explain for me, thanks a lot

Trung Le Hello sir, I have synthesized successfully by using sodium tungstate, as you can see in my published article. The benefit of using sodium salt is that it is easier to remove sodium impurity than ammonium salt.

thanks sir. I've read your article. So I'd like to ask you why did you choose DMF as a solvent with DI water. and is DMF safe?. I'm afraid my teflon linear is not thick enough to endure the high pressure and temperature of the hydrothermal condition