Description: Chemical additives for use in the manufacture of leather, namely, dispersing agents; chemical additives for use in the manufacture of leather, namely, degreasing agents; chemical additives for use in the manufacture of leather, namely, repelling and water proofing chemical agents; chemical additives for use in the manufacture of leather, namely, fillers, and flocculants; chemical additives for use in the manufacture of leather, namely, metal recovering chemical agents; chemical additives for use in the manufacture of leather, namely, emulsifier; chemical additives for use in the manufacture of leather, namely, neutralizers being chemical agents