Speaking
from 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 are able to get chrome oxide green by thermal
decomposition of ammonium bichromate. There is no doubt that Chrome
Oxide Green Refractory can clarify every thing. That is for sure.
Now,
let us talk something about characteristics or attributes of Chromium Oxide Green. Usually
speaking, as some of us know, chrome oxide green is with the feature of higher
temperature resistance, light resistance. What’s much more, it is 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 can be
151.99. what’s more, it belongs to six square crystal system and it's 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
five.21g/cm3, and its Mohs hardness can be eight.5~9, which is close to 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
much more, chrome oxide green is insoluble in water, acid and organic solvents.
But it is slightly soluble in concentrated sodium hydroxide answer. What’s much
more, it can be dissolved in hot sodium bromate answer and heat concentrated
perchloric acid solution or boiling parathion mixed acid.
On
the other hand, Chrome
Oxide Green Dye is very stable for light, air, and corrosive gases (H2S,
SO2). What’s more, chrome oxide green is with superb weatherability. To be
particular, when Green
Chrome Oxide meets heat, it has good stability. In addition, the melting
point of chrome oxide green can be 2265 DEG C and also the boiling point may be
3000 DEG C. That's why we can say that chrome oxide green is a kind of issues
which belongs to high-quality refractory supplies. 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