2015年9月1日星期二

The Preparation And Features Of Chrome Oxide Green



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.

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