Thread: Chromium Oxide 1.0?

Does anyone know where to find Chromium Oxide 1.0? I just ordered some .5 from SRP but would also like 3.0 and 1.0. Does that micron level exist with Chromium Oxide or am I getting confused with diamond spray's?

Originally Posted by jrlosh

Does anyone know where to find Chromium Oxide 1.0? I just ordered some .5 from SRP but would also like 3.0 and 1.0. Does that micron level exist with Chromium Oxide or am I getting confused with diamond spray's?

I've only ever heard of 0.5 micron Chromium Oxide. The only pastes I've seen in other grits such as 3.0 and 1.0 micron are the diamond pastes/sprays. So perhaps you are confusing it with the diamond sprays.

chro2 will be only 1 size.

maybe it's all the searching I've been doing today but I cant seem to find any info about where to get diamond sprays from.

The bottles of spray last a long time. I can send ya some, if you can get a cheap spray bottle...pm me if your interested. Ive got the SRD 1.0 micron spray.

Mac

Originally Posted by hi_bud_gl

chro2 will be only 1 size.

I've done a fair amount of research on chromium oxide. The kind we use is Chromium (III) Oxide CR2O3. It's a non-toxic version of chromium oxide.

I recall receiving a spec sheet after much back and forth from a Chromium Oxide manufacturing rep which listed an average particle range of different grades of chromium oxide. The largest average particle range in one of the available grades in descending order was 1.7 micron, .8 micron, .7 micron and .6 micron with different purity levels even within those four categories.

I guess that means that chrome ox is available in different particle ranges other than ".5 micron". I put the quotes around the .5 micron for a reason since it would be inaccurate for any supplier or manufacturer of any abrasive to state that ALL particles in an abrasive media would be guaranteed to be the exact same particle size. In our beloved ".5 micron" chrome ox, we've come to believe, we'd like to believe or we think we're certain that we're using a powder that contains only .5 micron particle chrome ox. That's only an average no matter where it comes from.

Chris L

I will try to make this simple.
Water is H20
doesn't matter where or how you get water -it will be H20.
Now you could join salt etc and by doing so you can change weight, consistency etc but water will be same H20 .Will never ever change.
hope this helps.

CR2O3 doesn't matter where or how and when you get CR2O3 you should end up CR203. You can add different ingredients and change weight etc.

I'm confused, Sham. The manufacturer I received information from back then made reference in their materials to milling, separating and sifting CR203 to different particle sizes. My point was that it's apparently possible to purchase chromium oxide in different average particle size other than .5 micron.

Chris L

Originally Posted by hi_bud_gl

I will try to make this simple.
Water is H20
doesn't matter where or how you get water -it will be H20.
Now you could join salt etc and by doing so you can change weight, consistency etc but water will be same H20 .Will never ever change.
hope this helps.

CR2O3 doesn't matter where or how and when you get CR2O3 you should end up CR203. You can add different ingredients and change weight etc.

Hmm, Oxygen is O2 but there's O3 and O5 too. And what about heavy water?

The ore for chrome is Chromite which is Cr2O4 with added iron and magnesium depending on purity.

Most chrome oxide is made for lapidary work so it can be ground to different grits according to need no different than alumina is.

I don't see any reason why the formula can't be artificially adjusted no different than iron oxide has several variants as long as the compound is stable and will bond together.