Discovery of DNA. Today, we know that DNA is the genetic material: the molecule that bears genes, is passed from parents to children, and provides instructions for the growth and functioning of living organisms. But scientists didnât always know this.
Dixon Chew is a leading UK manufacturer of Reactive Zirconium Chemicals. Our modern, well-equipped manufacturing facility located in Dewsbury has been built for flexible and reliable processing aimed at minimising order turn round times, maximising yields and reducing our environmental impact.
Naturally occurring zirconium is a mixture of five isotopes and they are found in the percentages shown: 90 Zr (51.5%), 91 Zr (11.2%), 92 Zr (17.1%), 94 Zr (17.4%) and 96 Zr (2.8%). The most naturally abundant is 90 Zr at 51.5%.irconium was first recognized as an element by Martin Heinrich Klaproth in 1789, in Berlin, in a sample of zircon (zirconium silicate) from Sri Lanka. His analysis of the mineralâs composition showed: 25% silica; 0.5% iron oxide; 70% new oxide.