Speaking
of the preparation or source of Chrome oxide green, we can get chrome oxide
green by calcination of chromic acid, sodium bichromate (or potassium) or
sulphur. What’s much more, we can get chrome oxide green by thermal
decomposition of ammonium bichromate. There is no doubt that Chrome
Oxide Green Refractory can explain everything. That is for certain.
Now,
let us talk some thing about traits or attributes of Chromium Oxide Green. Generally
speaking, as a few of us know, chrome oxide green is with the feature of high
temperature resistance, light resistance. What’s much more, it's with
resistance to numerous chemical substances. What’s more, if we make use of pure
chrome oxide green, it is using the exact same infrared reflection as natural
chlorophyll.
Speaking
of the molecular weight from the Chrome oxide green, its molecular weight may
be 151.99. what’s much more, it belongs to six square crystal method and it is
with the shape of green powder. As a result, we can also call it as Chrome
Oxide Green Refractory powder. By the way, the density of Chromium Oxide Green can be
5.21g/cm3, and its Mohs hardness may be eight.5~9, that 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) 2 and zircon (ZrSiO4).
As
for the refractive index of Chrome Oxide Green Pigment
, its refractive index may be two.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.
However it is slightly soluble in concentrated sodium hydroxide answer. What’s
much more, it can 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 stable for light, air, and corrosive gases (H2S,
SO2). What’s much more, chrome oxide green is with superb weatherability. To
become particular, when Green
Chrome Oxide meets heat, it has great stability. In addition, the melting
point of chrome oxide green can be 2265 DEG C and also the boiling point can be
3000 DEG C. That's why we can say that chrome oxide green is a type of issues
which belongs to high-quality refractory materials. Chromic oxide is mainly
utilized in metallurgy, paint, polishing, refractory supplies and new
improvement of molten coating(which can be called Chrome oxide green coating)
and so on.
没有评论:
发表评论