Quote: Originally posted by MineMan  | | Quote: Originally posted by Admagistr | What do you use the ruby melt for?[/rquote]
I wanted to make a ruby melt with the hope that in some parts there would be nice little rubies, preferably crystalline I collect gemstones and minerals, so for this reason. It was my very first experiment
with this reaction and I have a lot of ideas and other plans with this...The problem was that the metal molybdenum didn't melt and separate from the
Al2O3, but it mixed perfectly with the ruby melt, so the melt is very ugly, somewhere I should have pictures, I'll try to look at them, so you have an
idea of what it looked like. I thought of using a centrifuge during the reaction, another idea is to use KAl(MoO4)2, instead of Al2(MoO4)3, to
insulate the crucible well so that it cools very slowly and the molybdenum separates from the oxide. I also wish to cover the cup with a lid with a
small opening, so that the considerable part of MoO3, formed by the thermal decomposition of the aluminium molybdate not leave reaction mixture early,
that might help... Otherwise, MoO3 is a great mineralizer to make rubies and corundum in general. You have an idea too, any idea is welcome...
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MoO3 has an insane melting temperature. Starting with Al2O3, no chance of melting! Can you just use MoO3, and Al? I would put the mix over hot coals
and have it heat up too 1000c, the whole mixture before igniting… you will need a sting container however.
Could you add 10-30 percent Be for higher heat?! |
MoO3 has a medium-high melting temperature in my memory of around 800 C, and at this temperature, when it's mixed with Al2O3, it also melts that
oxide, by creating aluminium molybdate. I tried it and it was enough for an oven that produces a maximum temperature of 1,000 C. I lit the mixture in
the video with a regular little sparkle, you can see that at the beginning of the video, the burning of the sparkle, I wish I'd forgotten to write it
down...Well, I'm sure it could be done on that coal, too, but when the sparkle is enough, I chose the easiest course of action. I love your idea for
the Be. If we used aluminium molybdate and Be powder, there could also be chrysoberyl, with a touch of Cr2O3 that changes colors, looks emerald by day
and artificial light by night, like amethyst(violet red)! You could use Al powder with Be powder, or Be powder itself. Your idea is cool! It just kind
of spoils my joy, the considerable toxicity of the beryllium powder...Be powder is much better for pyrotechnic applications than aluminium, but its
spread and use are prevented by the bad combination of high price and toxicity. I'm sure our discussion will interest our colleague Vano! He's doing
experiments with BeO...
Have you ever tried any mixture with Be powder? I think anyone who's into energy materials and pyro applications and is really serious about it should
try it at least once...Under strictly security condition, that's the beauty flaw... |
