Recently, the world's largest investment management corporation, BlackRock, in a market research report said that currently, they prefer U.S. and Japanese equities to European equities because of the energy problem stemming from Russia's invasion of…
The latest epidemic data released by the Spanish Ministry of Health at noon on the 15th local time shows that Spanish cases of new crown pneumonia have been confirmed in 7753 cases, with 2,000 new cases in a single day.…
Nanopowder is also called nanoparticles, which generally refers to ultra-fine particles with a size between 1-100nm. Some people call it ultrafine particles. Its size is more significant than atom clusters and smaller than ordinary particles.…
The compound Ca3N2 is a powdery brown substance that dissolves in diluted acid and oxidizes. Calcium nitride, with the compound formula of Ca3N2, is a brown powder that oxidizes in the air and dissolves in dilute acid. Purity: 99.5%Particle Size : 5-...…
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