The main things in life that contain thallium include industrial and chemical materials, as well as pharmaceutical ingredients. The element thallium is widely found in nature in the form of trace compounds, and there are many things in life that contain thallium, but most of them are raw materials that are not accessible to the general public, as detailed below.
The raw materials used in industry include photocells, alloys, glass, etc.; the raw materials used in chemicals include pigments, fuels, fireworks, etc.; the raw materials used in medicines include poisonous rat poison, insecticide, mosquito killer, and thallium ointment for ringworm, etc.
However, the process of making firecrackers and fireworks produces sodium chloride as a by-product, which is mostly contaminated with thallium. If it is brought to the market by unscrupulous elements as industrial and edible salt, it is also among the substances containing thallium that can be accessed in life.