Rishabh Metals & Chemicals Pvt. Ltd. Offers Transparent and Colorless Crystal like Aspirin. Rishabh Metals & Chemicals Pvt Ltd manufactures its products in an ISO 9000 accredited facility. Transparent and Colorless Crystal like Aspirin has a purity content of minimum of 99.5%. This chemical is mainly used in for aches and pains for headaches, period pains, toothache, the pain of bruises and other injuries, and post-dental treatment. The acidity content of the chemical is maximum 0.2 mg potassium hydroxide per gram. Rishabh Metals & Chemicals Pvt. Ltd Transparent and Colorless Crystal like Aspirin have the refractive index of 1.500 to 1.503 and the specific gravity of 1.40.