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Bismuth subnitrate1. Apperence:Bismuth is a brittle metal with a white, silver-pink hue, often occurring in its native form with an iridescent oxide tarnish showing many colors from yellow to blue.2. Usage:Bismuth compounds are used in cosmetics, medicines, and in medical procedures. As the toxicity of lead has become more apparent in recent years, alloy uses for bismuth metal as a replacement for lead have become an increasing part of bismuth's commercial importance.3.Specification:ItemsAnalytical Reagent GradeAssay (Calculated as Bi2O3), percent:≥ 79.0 82.0Ferric(Fe), percent:≤ 0.003Copper(Cu), percent:≤ 0.005Sulfate(SO4), percent:≤ 0.01Arsenic(As), percent:≤ 0.0006Chloride(Cl), percent:≤ 0.005Nitrate(NH3), percent:≤ 0.003Insoluble matters in HNO3, percent:≤ 0.005Alkali Metals and Alkaline Earth Metals, percent:≤ 0.254. About us:Shenyang Xinguang Chemical Factory is a modern enterprise founded in 1988, specializing in manufacturing and selling fine chemical products. We produce five major product serieses: Inorganic chemical, chemical reagents of GR, AR, CP grade,pharmaceutical raw materials, electronic chemicals, food additives, and over 700 kinds of conventional varieties. At the same time, we can provide directional process according to demands of special indicatorss for chemical products.