Chromium is a silvery white metal, refractory (melting point 1800 ℃), with a specific gravity of 7.1, about the same as iron. Chromium is the hardest metal. Chrome is very fashionable. Nike has released new "shine" and "dark stucco" colors, and recently released a new and futuristic "Chrome" shoe. Chrome tattoos have also attracted a lot of attention. If you are interested, take a closer look at these chrome tattoos I collected today.
Chromium compounds, colorful. The original Greek meaning of chromium is "color". Metal chromium is white and silver, chromium sulfate is green, magnesium chromate is yellow, potassium dichromate is orange, chromic acid is scarlet, chromium oxide is green (the common green pigment "chromium green" is it), chrome alum (containing chromium sulfate) is blue purple, and lead chromate is yellow (the common yellow Yanke "chrome yellow" is it).