Methanol

Methanol, also known as hydroxymethane, is an organic compound and the simplest saturated monohydric alcohol. Its chemical formula is CH3OH/CH4O, in which CH3OH is a simple formula, which can extrude the hydroxyl of methanol. CAS No. is 67-56-1, molecular weight is 32.04, and boiling point is 64.7 ℃. It is also called "xylitol" or "lignin" because it is first found in dry distillation wood. The lowest dose of poisoning for the population is about 100mg/kg body weight, and 0.3~1g/kg oral intake can cause death. It is used in the manufacture of formaldehyde and pesticides, as well as as the extractant of organic matter and denaturant of alcohol.

Ethanol

Ethanol is a volatile colorless transparent liquid under normal temperature and pressure, with low toxicity. Pure liquid cannot be directly drunk. The aqueous solution of ethanol has the smell of wine, slightly irritating and sweet. Ethanol is flammable, and its vapor can form an explosive mixture with air.

Dichloromethane

Dichloromethane, an organic compound, is a colorless transparent liquid with an irritating odor similar to ether. Slightly soluble in water, soluble in ethanol and ether, it is a nonflammable low boiling point solvent under normal conditions of use. When its vapor becomes high concentration in high temperature air, it will generate weakly combustible mixed gas, which is often used to replace flammable petroleum ether, ether, etc.

Sodium hydroxide

Sodium hydroxide, also known as caustic soda, caustic soda and caustic soda, is an inorganic compound with the chemical formula NaOH. Sodium hydroxide is strongly alkaline and highly corrosive. It can be used as an acid neutralizer, a matching masking agent, a precipitating agent, a precipitating masking agent, a color developing agent, a saponifying agent, a peeling agent, a detergent and so on.

Dichloroethane

Dichloroethane (formula: 98.97), namely o-dichloroethane, is a kind of halogenated hydrocarbon, which is usually expressed by EDC. Colorless or light yellow transparent liquid melting point - 35.7 ℃, boiling point 83.5 ℃, density 1.235g/cm ³， Flash point 17 ℃. Insoluble in water is mainly used as an intermediate in the preparation of vinyl chloride (PVC monomer), as well as as a solvent. It is a colorless liquid with chloroform like odor at room temperature, toxic and potentially carcinogenic. Possible solvent alternatives include 1,3-dioxocyclohexane and toluene. Used as solvent and intermediate of trichloroethane. It is used as solvent for wax, fat, rubber, etc. and as grain insecticide.

Sodium carbonate

Sodium carbonate is an inorganic compound with a molecular weight of 105.99, also called soda ash, but it belongs to salt, not alkali. Also known as soda or soda ash in international trade. It is an important inorganic chemical raw material, mainly used in the production of flat glass, glass products and ceramic glazes. It is also widely used in domestic washing, acid neutralization and food processing.