We've Been dealing with Glentham from yrs now. They are incredibly trustful, valuable resolving problems and normally dependable. Bismuth has unusually lower toxicity for major metal. As being the toxicity of direct happens to be far more clear lately, There's increasing utilization of bismuth alloys presently about a 3rd of https://chemicalglobe.com/shop/research-chemicals/hydrogen-tetrachloroaurate-for-sale/