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About product and suppliers:
        Alibaba.com offers 398 rayon grade caustic soda products. About 79% of these are alkali. 

A wide variety of rayon grade caustic soda options are available to you, such as free samples. 

There are 325 rayon grade caustic soda suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Brazil, which supply 97%, 1%, and 1% of rayon grade caustic soda respectively. 

Rayon grade caustic soda products are most popular in Southeast Asia, South America, and Eastern Asia. 

You can ensure product safety by selecting from certified suppliers, including 48 with Other, 44 with ISO9001 certification.