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About product and suppliers:
        Alibaba.com offers 14,262 food grade caustic soda products. About 98% of these are alkali, 1% are carbonate, and 1% are elementary substances. 

A wide variety of food grade caustic soda options are available to you, such as industrial grade, food grade, and agriculture grade. You can also choose from free samples. 

There are 14,212 food grade caustic soda suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Brazil, and Thailand, which supply 98%, 1%, and 1% of food grade caustic soda respectively. 

Food grade caustic soda products are most popular in Southeast Asia, South America, and Oceania. 

You can ensure product safety by selecting from certified suppliers, including 1,846 with ISO9001, 466 with Other, and 74 with ISO14001 certification.