Bismuth compounds are chemical substances that contain the element Bismuth, which is a heavy metal known for its low toxicity compared to other heavy metals. These compounds are often used in various applications, including pharmaceuticals, cosmetics, and as pigments in paints. One well-known bismuth compound is bismuth subsalicylate, commonly used to treat stomach upset and diarrhea. In addition to their medicinal uses, bismuth compounds are also utilized in the manufacturing of semiconductors and as a replacement for lead in certain applications due to their non-toxic nature. Their unique properties, such as low thermal conductivity and high density, make them valuable in various industrial processes.