Wang Chengyan and Qiu Dingfan calculated the E-pH diagram of the Bi 2 S 3 -H 2 O system at room temperature using the thermodynamic data of the materials provided in the literature. See Figure 1. Fig.1 Bi(III)-S-H 2 O system potential-pH diagram The corresponding chemical equations and equilibrium equations in the figure are as follows: Figure 1 indicates that Bi 2 S 3 can be leached by oxidation of an oxidant having a standard redox potential higher than 0.499V. The iron dichloride has an EFe 3 + /Fe 2 + = 0.771 V, and the chlorine gas has an EC1 2 ∕Cl − =1.35 V, and both of the Bi 2 S 3 can be oxidized and leached. Tomato Tub This Tomato Tub is made of food-grade PET, thickened material, safe and environmentally friendly.The exterior design of the Tomato Tub Packaging uses transparency and high value, which clearly shows the freshness of the fruit itself, bringing a different home life.We mainly produce Fruit Clamshell/Punnet,Blueberries Clamshell,Strawberries Clamshell, Fruit Tub , Salad Tub ,Label Sticker and other agricultural products industries. Blister Clamshell Salad Box,Custom Plastic Packaging Boxes,Fresh Blueberry Box,Clamshell For Fruit Jiangmen JiuTai Plastic Product Co.Ltd , https://www.sequoiaent.com