Molybdenum blue
![A sample of one kind of molybdenum blue with the formula Na15[MoVI126MoV28O462H14(H2O)70]1⁄2
[MoVI124MoV28O457H14(H2O)68]1⁄2.[1]](/Images/godic/202501/27/Sample_of_Molybdenum_Blue5913.jpg")
Molybdenum blue is a term applied to:
The "heteropoly-molybdenum blues", are used extensively in analytical chemistry and as catalysts. The formation of "isopoly-molybdenum blues" which are intense blue has been used as a sensitive test for reducing reagents. They have recently been shown to contain very large anionic species based on the so-called "big wheel" containing 154 Mo atoms, with a formula [Mo154O462H14(H2O)70].