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About product and suppliers:
        Alibaba.com offers 4,432 calcium oxide products. About 18% of these are oxide, 6% are lime, and 1% are other food & beverage. 

A wide variety of calcium oxide options are available to you, such as calcium oxide, alumina, and hydrogen peroxide. You can also choose from industrial grade, food grade, and agriculture grade. As well as from free samples, paid samples. 

There are 4,328 calcium oxide suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Vietnam, and Spain, which supply 89%, 6%, and 1% of calcium oxide respectively. 

Calcium oxide products are most popular in South America, Mid East, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 1,694 with Other, 1,370 with ISO9001, and 162 with ISO14001 certification.