Currently, many people have used dry ice to clean polyurethane foaming equipment, especially high-end products such as car seats. Let’s follow t…
Organobismuth catalysts are widely used. Let’s take a closer look with the editor. Bismuth is the heaviest stable element in the periodic table of ele…
Polyurethane CatalystThe editor sorts out the similarities and differences in the molecular structures of polyurethane and polyurea. Polyurethane is a…
Organic zincIt is composed of organic ingredients and has excellent dispersion. The organic zinc has small particle size and strong chemical activity….
Organic bismuthThe manufacturer introduces organic bismuth. Bismuth belongs to Group 15 in the periodic table of elements and is the most metallic ele…
Catalysts are affected by various factors during use and will lose activity rapidly or slowly. The reasons for catalyst deactivation are complex. Poly…
Bismuth belongs to Group 15 in the periodic table of elements. It is the most metallic element in this group and the heaviest stable element in the pe…
Highlighting the composition of each type of catalyst Structure, catalytic behavior and catalytic mechanism. Five major types of catalysts are include…
Strength of metal chemisorption on gas molecules 1. What are the sources of acidity and the formation of acid centers in solid acids? (1) Sources: ion…
Catalyst catalytic role 1、Definition of catalyst Catalyst is a kind of substance that can change the speed of chemical reaction but not the thermodyna…
Catalyst issues I. Correct understanding of the concept of catalyst In 2014, the International Union of Pure and Applied Chemistry (IUPAC) clarified t…
Knowledge of the use of colorants, color protectors and bleaches 01 Colorants Color and luster are important sensory indicators for evaluating the qua…
