为什么氧化锌加热变成黄色?

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为什么氧化锌加热变成黄色?

为什么氧化锌加热变成黄色?
为什么氧化锌加热变成黄色?

为什么氧化锌加热变成黄色?
一种说法阳离子极化能力增大,共价键极化性增大,颜色加深
还有一种说法,原文如下
ZnO occurs as white powder known as zinc white or as the mineral zincite.The mineral usually contains a certain amount of manganese and other elements and is of yellow to red color.[2] Crystalline zinc oxide is thermochromic,changing from white to yellow when heated and in air reverting to white on cooling.[3] This is caused by a very small loss of oxygen at high temperatures to form the non-stoichiometric Zn1+xO,where at 800 °C,x= 0.00007.[3]