2015年9月1日星期二

The Preparation And Attributes Of Chrome Oxide Green



Speaking from 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 are able to get chrome oxide green by thermal decomposition of ammonium bichromate. There isn't any doubt that Chrome Oxide Green Refractory can explain everything. That is for certain.
Now, let us speak some thing about traits or attributes of Chromium Oxide Green. Usually speaking, as a few of us know, chrome oxide green is using 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 using the same infrared reflection as natural chlorophyll.
Speaking from the molecular weight of the Chrome oxide green, its molecular weight may be 151.99. what’s more, it belongs to six square crystal system 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 may be 5.21g/cm3, and its Mohs hardness may be 8.5~9, 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 can be 2.5 (coverage). And its particular heat (when the temperature is twenty degree) may 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 could be dissolved in hot sodium bromate answer and heat concentrated perchloric acid answer 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 excellent weatherability. To be specific, 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 is why we can say that chrome oxide green is a type of issues which belongs to high-quality refractory supplies. Chromic oxide is primarily used in metallurgy, paint, polishing, refractory supplies and new development of molten coating(which can be called Chrome oxide green coating) and so on.

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