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氧化鉻綠產品介紹

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? ? ? 氧化鉻綠，氧化鉻綠由鉻酸、重鉻酸鈉與硫磺等經高溫焙燒。或由重鉻酸銨熱分解而得。耐高溫、耐光、耐各種化學品。較純的制品對紅外線反射接近天然的葉綠素莫氏硬度接近剛玉，僅次于金剛石。有金屬光澤，具有磁性，遮蓋力強，耐高溫，耐日曬，不溶于水，難溶于酸，在大氣中比較穩定，對一般濃度的酸和堿及二氧化硫氣體無影響，具有優良突出的顏料品質和堅牢度。不溶于水、酸及有機溶劑，稍溶于濃氫氧化鈉溶液，溶于熱的溴酸鈉溶液、熱的濃高氯酸溶液或沸騰的硫磷混酸。對光、大氣、及腐蝕性氣體極穩定，耐候性優良。遇熱穩定，是優質的耐火材料。?三氧化二鉻主要用于冶金、顏料、研磨拋光、耐火材料以及新發展起來的熔噴涂料等。

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晶系

系六方晶系

顏色

綠色粉末

化學式

Cr2O3

分子量

151.99

密度

5.21g/cm3

莫氏硬度

8.5-9

折射率

2.5

比熱容

/0.17J/

熔點

2265

沸點

3000

氧化鉻綠的用途

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? ? ? 氧化鉻綠用于冶煉金屬鉻和碳化鉻，搪瓷、陶瓷、玻璃、人造革、耐火材料、建筑材料的著色、有機合成的催化劑、制造耐曬材料和印刷紙幣的用油墨、金屬拋光研磨材料、金屬表面滲鉻、磁性材料等。用于涂料、陶瓷、橡膠、美術顏料、以及偽裝涂料等。

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Chrome oxide green by chromic acid, sodium bichromate and sulphur by calcination. The thermal decomposition of the ammonium dichromate or. High temperature resistance, light resistance, resistance to various chemicals. Products of pure natural chlorophyll near infrared reflectance close to the Mohs hardness only to diamond, corundum. Has a metallic luster, magnetic, hiding power, high temperature resistance, resistance to sunlight, insoluble in water, soluble in acid, relatively stable in the atmosphere, the general concentration of acid and alkali and sulfur dioxide gas has no effect, has excellent quality and color fastness. Insoluble in water, acid and organic solvent, slightly soluble in concentrated sodium hydroxide solution, dissolved in concentrated perchloric acid solution of sodium bromate solution, hot or boiling phosphoric acid. Of light, atmosphere, and corrosive gases is very stable, good weather resistance. In case of thermal stability, it is a high quality refractory material. Chromic oxide mainly used in metallurgy, paint, polishing, refractory materials and new development of the molten coating etc
Chrome oxide green for smelting metal chromium and chromium carbide, enamel, ceramic, glass, leather, refractory materials, building materials, coloring, organic synthesis catalyst, making fast material and special ink printing paper, metal polishing materials, metal surface chromizing, magnetic materials, etc Used in paint, ceramics, rubber, art paint, and camouflage paint, etc

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上海頂央耐火材料有限公司

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?Q????Q：279****047

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