Roy & co. Offers manganese di-oxide, found in manganese nodules. Manganese di-oxide is considered to be a major ore of manganese. Ideal for organic synthesis, the company deals with premium quality manganese di-oxide available in black & brown shades. Manganese di-oxide has found many applications and investigations in laboratories and beyond. Some of these applications are: they are used as a catalysts in the laboratory preparation of oxygen, as a black paint, used for the production of chlorine, used by glassmakers to remove bluish-green tint of glass or add a pinkish / purplish colour. To prevent products from physical damage and moisture loss or gain, every product is packed in tightly closed containers including corrugated boxes, cartons, bubble sheets, specially designed export boxes. This enables an effective and defect free transit ensuring trouble free business at economical rates.