Sodium carbonate (Na2CO3), molecular weight 105.99. The purity of the chemical is more than 99.5% (mass fraction), also known as soda ash, but the classification belongs to salt and does not belong to alkali. Also known in international trade as soda or soda ash.

Solvent oil is one of the five major categories of petroleum products. Solvent oil has a wide range of uses. The largest amount is paint solvent oil (commonly known as paint solvent oil), followed by edible oil, printing ink, leather, pesticides, insecticides, rubber, cosmetics, spices, medicine, electronic components and other solvent oils. At present, there are about 400-500 kinds of solvents on the market, of which solvent naphtha (hydrocarbon solvents, benzene compounds) accounts for about half.

hydrocarbon resin (hydrocarbon resin) is a thermoplastic resin produced by pretreatment, polymerization and distillation of C5, C9, which is a by-product of petroleum cracking. It is not a polymer, but a oligomer with molecular weight between 300-3000

Sulfuric acid is a highly corrosive inorganic acid with the chemical formula H2SO4, known as the mother of the chemical industry [5]. Generally clear to slightly yellow, miscible with water at any concentration and exothermic [6]. Sometimes during industrial manufacturing, sulfuric acid may also be dyed a dark brown to raise awareness of it. [7]Sulfuric acid, as a dibasic acid, has different characteristics at different concentrations, and its corrosiveness to different substances, such as metals, biological tissues, and even rocks, is attributed to its strong acidity and its strong Dehydration (chemical properties), water absorption (physical properties) and oxidation. High-concentration sulfuric acid can cause great damage to the skin, because it not only decomposes proteins and fats through acidic hydrolysis to cause chemical burns, but also dehydrates carbohydrates and causes secondary flame burns, dehydrating organic compounds Carbon (C)[8][9]; if it gets into the eyes accidentally, it will damage the retina and cause permanent blindness. Therefore, sufficient safety measures should be taken when using it. In addition, the hygroscopicity of sulfuric acid can be used to dry non-alkaline gases.Because sulfuric acid has different properties, it also has different applications, such as household strong acid channeling agent[10][11], electrolyte of lead-acid battery, fertilizer, refinery material and chemical synthesis agent, etc.