I just Googled the msds for chromium oxide for fun. Didn't know it contained hexavalent chromium. I guess I am not drinking it, but it can get worked into your skin quite a bit, especially when applying/working it into a strop.
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I just Googled the msds for chromium oxide for fun. Didn't know it contained hexavalent chromium. I guess I am not drinking it, but it can get worked into your skin quite a bit, especially when applying/working it into a strop.
... actually I managed to get it here very cheap as a green color pigment :)!
Just don't lick you fingers when applying.
It is all about consistent partial size, Kremer pigments has very good Chrome and ferrous Oxides at reasonable prices and quick shipping. A little goes a long, long way.
There was recently a similar thread here re Kremer and which pigments were recommended.
"A little goes a long, long way." ... when you spill some!
Chromium is a classic allergenic, some develop an allergy after some time, so try and keep it off your skin.
Also any particles this small will be bad for your lungs.
Yes, wear a mask when mixing.
I keep a box of paper masks on the bench for playing with powders, grinding and light buffing. In younger years I did a lot that I probably should have had more protection and got lucky.
Now I buy a paper mask and safety glasses in quantity and keep handy. It takes but a second to loop a mask over your ears and slip on a pair of glasses.
Green: Chromium III oxide: Chromium(III) oxide - Wikipedia, the free encyclopedia
Purple/Red: Chromium VI oxide: Chromium trioxide - Wikipedia, the free encyclopedia
Hexavalent Chromium (Chromium VI) is the toxic one.