An iron alloy composed of iron, iron, and silicon (using silica, steel, and coke as raw materials, and silicon reduced at a high temperature of 1500 to 1800 degrees Celsius is melted into molten iron to form a ferrosilicon alloy). It is an important alloy
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Fumaric Acid, as a food additive, it is used as an acidity regulator and is denoted by the E number E297. Fumaric acid is a food acidulent used since 1946. It is generally used in beverages and baking powders for which requirements are placed on purity.