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About product and suppliers:
        Alibaba.com offers 337,201 acid black products. About 1% of these are dyestuffs, 1% are acidity regulators, and 1% are food additives. 

A wide variety of acid black options are available to you, such as agriculture grade, industrial grade, and electron grade. You can also choose from free samples, paid samples. 

There are 335,516 acid black suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Vietnam, which supply 87%, 11%, and 1% of acid black respectively. 

Acid black products are most popular in Mid East, North America, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 98,201 with ISO9001, 55,559 with Other, and 28,515 with ISO14001 certification.