ChemSpec, Ltd. distributor for OCCL insoluble sulfur products

Oriental Carbon & Chemical Ltd. is one of the market leaders in the production of Insoluble Sulphur for the tire and Rubber industry around the world, both in terms of quality as well as quantity. The company is oriented towards growth in a socially and environmentally sustainable manner. It has state of the art manufacturing facilities in India at Dharuhera (Harayana) and at Mundra (Gujarat). Apart from Insoluble Sulfur OCCL, also manufacture Sulphuric Acid and Oleums

ChemSpec, Ltd. is authorized distributor for OCCL and their Diamond Sulf Insoluble Sulfur products.


ChemSpec, Ltd. distributor for Diamond Sulf Insoluble Sulfur products

Diamond Sulf Insoluble Sulfur is an amorphous form of Sulfur in Polymeric form in contrast to the natural Sulfur which is Crystalline and monomeric in nature. The polymeric chains of Diamond Sulf consist of several thousand micro fine sulfur particles. The product is rendered insoluble in all known solvents and also in Rubber Compounds and does not take part in cross linking reaction like Natural Sulfur as long as it is in Polymeric form.

Special Grades:

Diamond Sulf special grades are products designed to specific requirements of the industry. These grades have been enhanced to perform better and can be customized further to achieve specific results as per the need of the customer.

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Trade Name



ChemSpec, Ltd. distributor for Diamix Insoluble Sulfur