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Chromium sesquioxide

Cas:
1308-38-9
MDL:
--MFCD00010949
Molecular Formula:
Cr2O3
Molecular Weight:
152.02
Alias:
氧化铬,铬绿 Chromic oxide Chrome green Green cinnabar Anadonis green Chromium(III)oxide
Product order:
Name Specifications Packing Price Delivery
Chromium sesquioxide 60nm 球形,98.0% 500g RMB 7480 Consulting service
Chromium sesquioxide CP 500g RMB 99 Consulting service
Chromium sesquioxide AR 500g RMB 107.8 Consulting service
Character:
亮绿或深绿色细小三角形结晶。溶于加热的溴酸钾溶液,微溶于酸类的碱类,几乎不溶于水、乙醇和丙酮。有刺激性。。有金属光泽。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,具有磁性。灼热时变棕色,冷后仍变为绿色。结晶体极硬。性极稳定,即使在红热下通入氢气亦无变化。有刺激性。
密度:5.22
熔点:2435℃
沸点:3000℃
Quality Standard:

   Q/(HG)SJ 693-95
项目Item                                        分析纯   化学纯
                                                 (AR)     (CP)
含量(Cr2O3)Assay,%                             ≥ 99.0    98.5
水溶物Soluble,%                                ≤ 0.1     0.3
氯化物(Cl)Chloride,%                           ≤ 0.005   0.01
硫酸盐(SO4)Sulfate,%                           ≤ 0.01    0.05
铁(Fe)Iron,%                                   ≤ 0.03    0.05
铬酐(CrO3)Chromic anhydride,%                  ≤ 0.003   0.05
Storage:
密封保存。
用途  用作冶炼金属铬, 碳化铬, 制抛光膏和油漆颜料; 也用作搪瓷, 玻璃,有机及无机反应催化剂,折光材料,着色玻璃,磨料。
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