The chemical formula of chromium diboride is CrB2, which is a crystal with high hardness and melting point, and is chemically stable. Concentrated nitric acid is insoluble and can be directly mixed with elements or made from active metal reduction ox
In terms of international pricing benchmarks, according to the CP data released by Saudi Aramco, the propane contract price (CP) in March was $895 / ton, up $120 / ton from the previous month, up 15.48% from the previous month and up 43.20% from the
Risk aversion plunged on the positive news of the Russia-Ukraine talks. After several days of rising oil prices, the price of precious metals continued to fall. Domestic futures markets remain stable for the time being.Back in international markets,
Recently, covid 19 outbreak spreads in Shanghai, China. There are more than 25,000 new asymptomatic domestic infections every day. China is implementing a dynamic zero-out policy. A leading respiratory expert said the key to COVID-19 prevention and c
The World Bank recently estimated that for every 1% increase in global food prices, nearly 10million people will fall into "extreme poverty" with a daily living cost of less than $1.9 (about
In the aerospace or petrochemical industries, these important industries are related to the national economy and people's livelihood.
Polypropylene PP fiber has the advantages of high strength, good toughness, good chemical resistance and antimicrobial resistance, and low price, so it is widely used in ropes, fishing nets, safety belts, luggage belts, safety nets, sewing threads, c
As the world deals with potential supply shortages, oil prices are soaring again, with more dramatic spikes and sudden drops expected.For consumers, that means more expensive gas for longer - prices at the pump remain above $4 a gallon. For the econo
Graphite has many excellent properties, so it is widely used in metallurgy, machinery, electrical, chemical, textile, national defense, and other industrial sectors.
Recently, US media reported that Elon Musk SpaceX is seeking permission from the Federal Communications Commission (FCC) to extend the company Starlink satellite broadband Internet serviceto planes, ships and cars. In an application filed with the FC
US President Joe Biden plans to invite Japanese Prime Minister Yoshihide Suga to the White House for a summit meeting as soon as April, Axios reported Wednesday. If finalized, it would be Mr. Biden first face-to-face meeting with a foreign leader sin