2Ga2O3•3MoO3 and MnMoO4

Hi, there are two compounds which I made. First is gallium molybdenum oxide. It forms 2Ga2O3•3MoO3•15H2O hytrate, which is white, I was heating for a long time(not at high temperature) so it lost water. Pretty nice yellow compound, I also made gallium Tungsten oxide hydrate(Ga2O3•2WO3•8H2O), which is also white, maybe i will try anhydrous compound. Second one is manganese molybdate monohydrate, It has a more yellow color than can be seen in the photo. It used as a catalyst, but it's also good for colourful chemicals collection.

Quote: Originally posted by ChemTalk

hello Vano, thanks for sharing. As always, those are very interesting compounds. How did you make them? -------------------------------------------------------------------------------------------------------- ChemTalk Golden Rain Experiment ChemTalk Youtube Channel [Edited on 3-14-2021 by ChemTalk]

Quote: Originally posted by Bedlasky

I think that gallium molybdenum oxide is some kind of gallium molybdate. How did you make your manganese molybdate? My is creamy white. It seems that it is little bit contaminated by hexamolybdatomanganate(II) which is orange.

https://colourchem.files.wordpress.com/2020/11/nh44h6mnmoo46...

On the left is (NH4)4H6[Mn(MoO4)6], on the right is MnMoO4.

Did you use excess of molybdate/manganese chloride or stoichiometric amounts?

Edit: I just realized - what photo is your MnMoO4? Left or right? I was thiking that left . Right photo looks exactly like MnMoO4.

[Edited on 15-3-2021 by Bedlasky]

Quote: Originally posted by Bedlasky

https://colourchem.files.wordpress.com/2020/11/nh44h6mnmoo46... On the left is (NH4)4H6[Mn(MoO4)6], on the right is MnMoO4. Did you use excess of molybdate/manganese chloride or stoichiometric amounts? Edit: I just realized - what photo is your MnMoO4? Left or right? I was thiking that left . Right photo looks exactly like MnMoO4. [Edited on 15-3-2021 by Bedlasky]