Green chromium oxide (Cr2O3 powder) is extremely stable and has excellent weather resistance. Insoluble in water, acid and organic solvents, slightly soluble in sodium hydroxide solution. Used in metallurgy, also used as ceramics, refractory material…
The Rhine, which flows through Switzerland, Germany, France and the Netherlands, is an important shipping channel in Europe, and tens of millions of tons of goods are transported between countries through the Rhine every year. The persistent drought…
Green chrome oxide (Cr2O3 powder) is extremely stable and have excellent weather resistance. It's insoluble in water, acid and organic solvents, slightly soluble in sodium hydroxide solution, only soluble in hot sodium bromate solution, hot concentra…
Chile's government is considering phasing in a proposed ban on glacial mining to limit projects high in the Andes by some big copper companies. Chile's constitutional assembly has approved a proposal to ban mining in glaciers, protected areas, and ar…
From April the French government will reduce fuel taxes slightly to ease the burden on consumers. Warned of possible energy shortages in France by the end of the year and called on the French to conserve electricity and gas from now on, saying that i…