Featured this week Tungsten Tungsten, also known as wolfram, is a chemical element with symbol W and atomic number 74.  Based on its purity, the colour of tungsten may range from white for the pure metal to steel-grey for the metal with impurities. It.
Featured this week Acrylic Acid Acrylic acid (IUPAC: prop-2-enoic acid) is an organic compound with the formula CH2=CHCO2H. It is the simplest unsaturated carboxylic acid, consisting of a vinyl group connected directly to a carboxylic acid terminus. This.