Bismuth Chunk (5 pounds | 99.99+% Pure) Bismuth Chunk (5 pounds | 99.99+% Pure) Our Bismuth Chunk is sourced directly from the Chenzhou Bismuth Group where it is produced and is 100% virgin metal (not recycled). We sell this metal by the 5lb pound increment, so if you need 10lbs, simply add a quantity of 2 to your cart. Be sure to see our promotional discounts for certain quantity levels if you would like to save money per pound. USAGE - This is high purity bismuth that can be confidently used in any application where bismuth is required. This item is one of our best sellers because of its versatility and ease of use. This is the best choice for making crystals with pure bismuth. SIZE - Each piece of bismuth chunk or ingot approximately 2 inches to 4 inches in length and width. Each piece varies in exact size and shape - The bismuth chunk is generally irregular in shape. SPECIFICATIONS - Atomic Number = 50 | Melting Point (F) = 450 | Atomic Mass= 118.71 | Boiling Point (F) = 4100 | Density (g/cm3) = 7.29 | Analysis: BISMUTH 99.9982%. PACKAGING - This 1lb tin shot will arrive sealed inside of heavy duty BPA free plastic to prevent any corrosion or oxidation.