Speaking of the preparation or supply of Chrome
oxide green, we can get chrome oxide green by calcination of chromic acid,
sodium bichromate (or potassium) or sulphur. What’s more, we can get chrome
oxide green by thermal decomposition of ammonium bichromate. There is no doubt
that Chrome
Oxide Green Refractory can clarify everything. That's for sure.
Now, let us speak something about characteristics
or attributes of Chromium Oxide Green.
Usually speaking, as some of us know, chrome oxide green is using the feature
of higher temperature resistance, light resistance. What’s much more, it's with
resistance to various chemical substances. What’s much more, if we make use of
pure chrome oxide green, it's with the same infrared reflection as all-natural
chlorophyll.
Speaking of the molecular weight of the Chrome
oxide green, its molecular weight may be 151.99. what’s much more, it belongs
to six square crystal system and it's with the shape of green powder.
Consequently, we can also call it as Chrome
Oxide Green Refractory powder. By the way, the density of Chromium Oxide Green may
be five.21g/cm3, and its Mohs hardness may be eight.5~9, which is close towards
the alumina (Al2O3) and second only to diamond. But its Mohs hardness is
greater than silica and topaz al2 [SiO4] (F, oh) two and zircon (ZrSiO4).
As for the refractive index of Chrome Oxide
Green Pigment , its refractive index can be 2.five (coverage).
And its particular heat (when the temperature is twenty degree) can be 0.17J/ (G
- K).
What’s more, chrome oxide green is insoluble in
water, acid and organic solvents. But it is slightly soluble in concentrated
sodium hydroxide solution. What’s much more, it could be dissolved in hot
sodium bromate solution and heat concentrated perchloric acid solution or
boiling parathion mixed acid.
Around the other hand, Chrome
Oxide Green Dye is very steady for light, air, and corrosive
gases (H2S, SO2). What’s much more, chrome oxide green is with excellent
weatherability. To be particular, when Green
Chrome Oxide meets heat, it has great stability.
Additionally, the melting point of chrome oxide green may be 2265 DEG C and
also the boiling point can be 3000 DEG C. That is why we are able to say that
chrome oxide green is really a kind of things which belongs to high-quality
refractory materials. Chromic oxide is primarily used in metallurgy, paint,
polishing, refractory materials and new development of molten coating(which can
be called Chrome oxide green coating) and so on.
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