Nickel sulphate is an inorganic compound with the chemical formula NiSO4, usually found in the form of a hexahydrate, NiSO4-6H2O.

Activated white clay, also known as decolorised clay, is a white powder with very fine pores, a natural silicate mineral, the main components are silicate minerals, alumina and calcium oxide, etc. It has the properties of adsorption, ion exchange and catalysis. It is an important inorganic adsorbent, which can adsorb and separate macromolecular compounds, organic molecules and inorganic substances, and is widely used in various fields such as chemical industry, pharmaceuticals, food, oil and grease, cosmetics, water treatment and so on.

Chromium oxide generally refers to chromium trioxide. Chromium trioxide, an inorganic compound with the chemical formula Cr₂O₃, is a green crystalline powder, insoluble in water, acid and alkali solutions, soluble in hot alkali metal bromate solutions, mainly used for colouring ceramics and enamels, and also used as an analytical reagent and catalyst.

Silicone fluids usually refer to linear polysiloxane products that remain liquid at room temperature. They are generally divided into two categories: methyl silicone oil and modified silicone oil. The most commonly used silicone oil - methyl silicone oil, also known as common silicone oil, its organic groups are all methyl, methyl silicone oil has good chemical stability, insulation, good hydrophobic properties. It is hydrolysed by dimethyl dichlorosilane plus water to produce the initial condensation of the ring body, the ring body by cracking, distillation to produce a low ring body, and then the ring body, capping agent, catalysts on the polymerisation together can be obtained in a variety of different degrees of polymerisation of the mixture, by distillation under reduced pressure to remove the low-boiling material can be produced silicone oil.