The product is 1 kg of high purity Bismuth Trioxide powder, also known as Bismuth Oxide or Bi2O3, suitable for laboratory use. The powder is sourced from the United States with a purity of 99.9%. This lab grade Bismuth Trioxide is ideal for physical laboratory experiments and research in various disciplines. With its specific unit quantity of 1 kg, this product is a reliable choice for those seeking a dependable and pure source of Bismuth Trioxide for their studies or professional work.