Perchloroethylene, also known as perchloroethylene, is an organic chemical widely used in dry cleaning and metal degreasing, as well as in the manufacture of other chemicals and consumer products. It is a non-flammable liquid at room temperature. Volatile, with a pungent sweetness. Many people can smell it when the air contains 1 parts per million of tetrachloroethylene. In 1821, Michael Faraday first heated hexachloroethane to decompose it into tetrachloroethylene and chlorine gas.

Chemical name:1-Octanol
Other name:n-Octanol / Octanol
CAS:111-87-5
Purity:99.5% min
Molecular formula:C8H18O
Molecular weight:130.23
Chemical Properties:Colorless liquid
Application:Mainly used in the production of plasticizer, extractant, stabilizer, used as solvent and flavor intermediate.

Monomethylamine aqueous solution is an aqueous solution formed by dissolving monomethylamine in water, which is a colorless and transparent liquid.
It has been included in the "List of Pre-explosive Hazardous Chemicals", and is managed and controlled in accordance with the "Administrative Measures for the Public Security of Pre-Explosive Hazardous Chemicals".

Colorless transparent liquid. Has a special smell. Sweet. High refractive index, non-flammable, heavy and volatile. The pure product is sensitive to light. When exposed to light, it will react with oxygen in the air and gradually decompose to generate highly toxic phosgene (carbonyl chloride) and hydrogen chloride. 0.6%~1% ethanol can be added as stabilizer. It is miscible with ethanol, benzene, ether, petroleum ether, carbon tetrachloride, carbon disulfide and oil, etc. 1ml dissolves in 200ml water at 25℃. Relative density 1.4840. Freezing point -63.5 ℃. Boiling point 61~62℃. Refractive index 1.4476. Low toxicity, median lethal dose (rat, oral) 1194mg/kg. There is anesthesia. Possibly carcinogenic.

Methallyl alcohol :colorless liquid with a sharp pungent odor. Soluble in water and floats on water. Moderately toxic by ingestion and is an irritant to eyes and skin. Used in the chemical process industry.

Glyoxal is an organic compound with the formula C2H2O2, With a molecular weight of 58.036. The appearance is white or gray-white crystalline powder (yellow angular or irregular sheet, become white after cooling), used as pharmaceutical intermediates, fabric finishing agents, dyes and dye intermediates.

Water reducer is a concrete admixture that can reduce the amount of mixing water while maintaining the slump of concrete. Most of them are anionic surfactants, such as lignosulfonate, naphthalenesulfonate formaldehyde polymer, etc. After being added to the concrete mixture, it can disperse the cement particles, improve its workability, reduce the unit water consumption, and improve the fluidity of the concrete mixture; or reduce the unit cement consumption and save cement.

Silica is an acidic oxide, and the corresponding hydrate is silicic acid (H₂SiO₃). Silica is one of the most important compounds of silicon. The natural silica that exists on the earth accounts for about 12% of the mass of the earth's crust, and its existing forms are divided into two categories: crystalline and amorphous, collectively referred to as silica

EDTA is an organic compound with the chemical formula C10H16N2O8 and is a white powder under normal temperature and pressure. It is a chelating agent that can bind with Mg2+, Ca2+, Mn2+, Fe2+ and other divalent metal ions. Mg2+ is often used as an inhibitor of nucleases and proteases because most nucleases and some proteases require Mg2+. It can also be used to remove the inhibition of heavy metal ions on enzymes.