An interesting chemical engineer
Polyether defoamer is a common surfactant, which is mainly used to reduce or eliminate foam in liquid system. Foam is formed by bubbles on the liquid interface, which will interfere with industrial processes or affect product quality. Therefore, defoamers are needed to control the generation and stability of foam. Polyether defoamers are typically non ionic…
Acetyl chloride is an organic compound with the following properties: Physical properties: Acetyl chloride is a colorless to light yellow liquid with a pungent odor at room temperature. It has a lower boiling point (51 ° C) and a vapor pressure higher than room temperature, so it quickly evaporates. Chemical properties: Acetyl chloride is a…
Printing and dyeing auxiliaries are a widely used chemical in the textile printing and dyeing process, used to improve the solubility, dyeing performance, and color stability of dyes. According to different components and uses, printing and dyeing auxiliaries can include various chemicals, some of which may be classified as hazardous chemicals. Generally speaking, certain components…
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Water treatment chemicals are chemicals used to purify and treat water quality. Depending on the specific composition and use, some water treatment chemicals may belong to hazardous chemicals, while others may not be hazardous. This depends on factors such as its chemical composition, concentration, and usage conditions. In general, the safety and danger…
Concrete water reducing agent is a chemical additive used in concrete construction, mainly used to improve the processing performance and performance characteristics of concrete. It can regulate the fluidity, slump, setting time, and strength of concrete. Specifically, adding water reducing agents to concrete has the following functions: Adjusting slump: Adding a water reducing agent can…
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Scale inhibitors are generally not classified as hazardous chemicals, but their safety and danger need to be evaluated based on their specific composition and concentration. Scale inhibitor is a chemical additive used to prevent the formation and deposition of scale in water systems. They usually contain inorganic salts, organic compounds, or polymers, which can effectively…
Scale remover and scale inhibitor are two different chemical additives that differ in application and function. Descaler: Descaler is mainly used to remove scale or sediment that has already formed in the water system. Scale is a hard deposit formed by the crystallization of inorganic salts, carbonates, oxides, etc. dissolved in water on the surface…
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Cationic chelating agents are a type of chemical substance whose main function is to form stable complexes with metal ions. They change their activity, solubility, and behavior by forming coordination bonds with cations in metal ions. The main functions of cationic chelating agents are as follows: Complexation: Cationic chelating agents can form complexes with metal…
Polycarboxylic acid water reducing agent is a commonly used concrete admixture that can be used to improve the workability and strength of concrete. The following is a common example of a polycarboxylic acid water reducer formula: Polycarboxylic acid main chain polymer: It is commonly used as a main chain polymer of polycarboxylic acid water reducing…
Corrosion and scale inhibitors are chemicals used to prevent metal corrosion and scale deposition. In China, the national standard for corrosion and scale inhibitors is GB/T 20476-2006 “Corrosion and Scale Inhibitors for Boiler Water Treatment Agents”. This standard specifies in detail the technical requirements, test methods, inspection rules and markings, packaging, transportation, storage, and other…
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