Cerium oxide can be described as an inorganic compound, with chemical formula CeO2. The cerium dioxide pure product is a white cubic crystal or heavy powder. 8.13g/cm3. Melting point 2397degC. Purity: 99.99%Size of particles: Nano- and Micron Ceriu…
According to the United Nations website, in the past week, countries reported an 8% increase in new crown cases to the WHO, with more than 11 million positive tests. Tedros noted that although some countries hav…
Koalas were declared endangered in eastern Australia on Friday, with more and more koalas dying from disease, habitat loss, and other threats. Earlier, the koala was considered a vulnerable species, and the Commonwealth Department of the Environment…
Concrete is classified as high-strength concrete based on 28-day strength. Until the 1970s, concrete with a strength of more than 40Mpa was classified as high-strength concrete.…