| 品牌巩义市明悦刚玉制品有限公司 | 型号YHGL |
| 种类铬绿 | 规格25kg |
| 材质三氧化二铬 | 适用范围耐火材料 冶金 |
【氧化铬绿简介】
氧化铬绿cr203即三氧化二铬，熔点2266℃，沸点4000℃。不溶于水和酸，可溶于热的碱金属溴酸盐溶液中，对光、大气、高温及腐蚀性气体稳定。一般添加于刚玉质或刚玉尖晶石质耐火材料中加量均不大，但可显著改善材料的某些性能，比如高温强度性能，抗渣侵蚀性能，热震稳定性能等。主要用作冶炼金属铬、碳化铬、制抛光膏和油漆颜料，也用作耐火材料、磨料，搪瓷、玻璃、陶瓷的着色剂以及熔喷涂料。
chrome oxide green cr203 chromium trioxide, melting point 2266 ℃. the boiling point of 4000 ℃. insoluble in water and acid, soluble in hot alkali metal salt solution. light, stable atmosphere, high temperature and corrosive gas. generally add in just the jade or fused alumina spinel refractory adding quantity are small, but can significantly improve the performance of some on the material, such as high temperature strength properties, slag erosion resistance, thermal shock stability, etc. mainly used for smelting metal chromium and chromium carbide, polishing paste and paint pigments, also used for refractories, abrasives, enamel, glass, pottery and porcelain of colorants and melting spray paint.
【氧化铬绿生产工艺】
工业上常用的氧化铬绿生产工艺有：氢氧化铬法、硫酸铵-红矾钠热分解法和铬酐直接热分解法。
硫酸铵-红矾钠热分解法，采用该工艺制取氧化铬产量大、质量好、品种多。其优点有生产工艺比液相还原法简单、成本低于铬酐分解法、适应性广(可制颜料、研磨剂、耐火材料及冶金级氧化铬)、适于回转窑大规模生产，且在生产过程中基本不产生有害气体等，因而取代了早期的红矾钠-氯化铵热分解法(氯化铵易挥发损失)。
industry commonly used chrome oxide green production process are: chromium hydroxide method, the thermal decomposition of ammonium sulfate - sodium chromate salt method and chromium anhydride direct thermal decomposition method.
thermal decomposition of ammonium sulfate, sodium chromate salt method, using the largest output in the process for making chrome oxide, best quality, most varieties. its advantages are production process than liquid phase reduction method is simple, the cost is lower than chromium anhydride decomposition method, wide adaptability, pigment, abrasives, refractory material and metallurgical grade chrome oxide), suitable for mass production of rotary kiln, and in the process of production does not produce harmful gases, such as basic, thus replacing the early - thermal decomposition of ammonium chloride and sodium chromate salt method (ammonium chloride volatile loss).
【氧化铬绿特性】
1、溶于热的碱金属溴酸盐溶液，不溶于水、醇、酸和碱。对光、大气、高温及二氧化硫和硫化氢等腐蚀性气体均极稳定，有很高的遮盖力，有毒。
2、与许多二价金属的氧化物一起加热至高温能生成尖晶石型化合物。
3、具有α-al2o3结构，cr2o3对酸碱都具有很好的稳定性，与酸碱一般不反应。三价铬的氢氧化物，cr(oh)3具有两性，能够与酸碱发生反应。
4、经过灼烧的cr2o3，晶型致密，类似于刚玉，不溶于酸，但可用熔融法使它变为可溶性的盐。如cr2o3与焦硫酸钾在高温下反应：cr2o3+ 3k2s2o7=3k2so4+ cr2(so4)3。
1, soluble in hot alkali metal salt solution. insoluble in water, alcohol, acid and alkali. light, air, high temperature and corrosive gases such as sulfur dioxide and hydrogen sulfide are very stable. has a high hiding power. poisonous.
2, with a lot of divalent metal oxide heated to high temperature and can generate spinel compounds.
3, with alpha al2o3 structure. cr2o3 had a good stability in acid and alkali, reaction with acid and alkali is generally not. trivalent chromium hydroxide, cr (oh) 3 with both sexes, can react with acid and alkali.
4, after calcination of cr2o3, dense crystal type, similar to the corundum, insoluble in acid, but available melting method to make it into a soluble salt. if cr2o3 reaction at high temperatures: potassium sulphate with focal cr2o3 + 3 k2s2o7 = 3 + k2so4 cr2 (so4) 3.
【氧化铬绿用途】
明悦氧化铬绿用于冶炼金属铬和碳化铬，搪瓷、陶瓷、玻璃、人造革、耐火材料、建筑材料的着色、有机合成的催化剂、制造耐晒材料和印刷纸币的专用油墨、金属抛光研磨材料、金属表面渗铬、磁性材料等。用于涂料、陶瓷、橡胶、美术颜料、以及伪装涂料等。
氧化铬绿主要用途分冶金、颜料、磨料、耐火材料及新发展起来的溶喷涂料5类。
1、冶金（铝热法制金属铬）用三氧化二铬占产量比例大。
2、作为绿色颜料用于涂料、油墨、陶瓷、搪瓷、彩色水泥。氧化铬绿能类似叶绿素反射红外线，用于配制类似绿色树叶簇的伪装涂料。
3、作为研磨剂，用于机械、仪器、仪表、钟表及滚珠轴承的研磨、抛光。
4、直接用作耐火材料，或与氧化镁、氧化铝等制成复合耐火材料。作为熔喷涂料借助等离子体直接喷涂到金属、陶瓷表面，赋予后者极高的耐磨性、耐蚀性和耐高温性。
5、三氧化二铬还用作催化剂及其载体，用于制作复合氧化物（包括含三氧化二铬的非绿色颜料）以及作为原料制取铬的碳、氮、硼、硅化物。新的纳米材料—纳米三氧化二铬更具有优异性能和特殊用途。
mingyue chrome oxide green used for smelting metal chromium and chromium carbide, enamel, ceramic, glass, leather, refractory materials, building materials, color, organic synthesis catalyst, making fast material and special ink printing paper, metal polishing materials, metal surface chromizing, magnetic materials, etc. used in paints, ceramics, rubber, art paint, and camouflage coatings, etc.
main use points, metallurgy, pigment, abrasive, fire-proof material and new developed solvent paint 5 classes.
1, metallurgy (aluminum hot metal chromium) legal system with chromium trioxide accounted for the largest output.
2, as a green pigment used in coatings, printing ink, ceramics, enamel, color cement. can similar chlorophyll reflection infrared chrome oxide green, green leaves to make similar clusters of camouflage coatings.
3, as abrasives, used in machinery, instruments, clocks and ball bearing grinding and polishing.
4, directly used as refractory materials, or made into composite refractory with magnesium oxide, alumina, etc. as melt spray coating using plasma spray directly to the surface of a metal, ceramic, given the high wear resistance, corrosion resistance and high temperature resistance.
5, chromium trioxide used as catalyst and its carrier, used to make composite oxide (including the green paint containing chromium trioxide) and as a raw material for making carbon, nitrogen, boron, chromium silicide. the latest nano materials - nano chromium trioxide has more excellent performance and special purpose.
【氧化铬绿使用须知】
1、健康危害：3价铬对鼻、喉、皮肤无损害，6价铬刺激鼻、喉、皮肤、眼睛。
2、皮肤接触：用肥皂、水冲洗5分钟。
3、眼睛接触：用大量水冲洗至少15分钟，就医。
4、吸入：将患者移至空气新鲜处，输氧或施行人工呼吸。
5、应急处理：须穿戴防护用具进入现场，使用简便的方法将粉末泄漏物收集至密闭容器中。
6、储存注意事项：存于密闭容器内，置于凉爽、通风处或规定的场所，避禁忌物。
1,health hazard: 3 +) on the nose, throat and skin damage, 6 chromium to stimulate the nose, throat, skin and eyes.
with soap and water
2, skin contact: rinse for 5 minutes.
3, eye contact: flush with large amounts of water for at least 15 minutes. go to a doctor.
4, inhalation: remove the patient to fresh air, oxygen, or perform artificial respiration.
5, emergency handling: must wear protective gear into the field; using simple method collect powder leakage and airtight container.
6, storage precautions: store in an airtight container, in a cool, ventilated place or regulations; avoid taboo.
【联系方式】
巩义市明悦刚玉制品有限公司
销售经理：张玉霞
联系电话：13014515629
q q：3175186955
地 址：巩义市永安路外沟村
gongyi city mingyue corundum products co., ltd
sales manager: yu-xia zhang
contact phone number: 13014515629
q q: 3175186955
address: gongyi city wing road outside ditch village
巩义市明悦刚玉制品有限公司
张女士
13014515629
河南 郑州 巩义市