Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal in the first transition series and is the most abundant element on Earth, making up about 5% of the Earth's crust. Iron is a lustrous, ductile, and malleable metal that is essential for various biological processes, including oxygen transport in hemoglobin and cellular respiration. It is widely used in construction, manufacturing, and other industries due to its strength, durability, and ability to form alloys with other elements. Iron is also a key component in the production of steel, which is a crucial material in modern infrastructure and technology.
The CAS Registry Mumber 8053-60-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,0,5 and 3 respectively; the second part has 2 digits, 6 and 0 respectively. Calculate Digit Verification of CAS Registry Number 8053-60: (6*8)+(5*0)+(4*5)+(3*3)+(2*6)+(1*0)=89 89 % 10 = 9 So 8053-60-9 is a valid CAS Registry Number.