Melamine water reducing agent is the product of the reaction that melamine is first sulfonated by sulfuric acid and then condensed with formaldehyde, so the chemical name is sulfonated melamine-formaldehyde resin, which belongs to the anionic surfact…
Is alumina poisonous to the body?Light weight aluminum is generally located on the planet in the form of alumina or bauxite. When light weight aluminum is revealed to the air, alumina is formed and also a thin surface layer is formed on the aluminum,…
What is indium powder?It is mainly used in the electronic conductive paste for silicon solar cells. At the same time, indium is also widely used in the manufacture of "fusion" materials, various alloys (such as advanced bearing alloys, low melting po…
The German import price index rose 4.3 percent month-on-month and 32.7 percent year-on-year in August 2022 due to energy shortages, the largest year-on-year increase since March 1974, data from the German Federal Statistical Office showed on October…