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21750-90-3

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21750-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21750-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,7,5 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21750-90:
(7*2)+(6*1)+(5*7)+(4*5)+(3*0)+(2*9)+(1*0)=93
93 % 10 = 3
So 21750-90-3 is a valid CAS Registry Number.

21750-90-3Downstream Products

21750-90-3Relevant articles and documents

Thermochemical quantities for gas-phase iron, uranium, and molybdenum fluorides, and their negative ions

Borshchevskii, A. Ya.,Boltalina, O. V.,Sorokin, I. D.,Sidorov, L. N.

, p. 523 - 538 (2007/10/02)

Ion-to-molecule equilibria among gaseous iron, uranium, and molybdenum fluorides, and their negative ions, have been studied by Knudsen-cell mass spectrometry with the help of a combined ion source.On the basis of thermochemical quantities, derived by third-law analysis and from the literature for enthalpies of formation of gaseous species, electron affinities have been calculated for a number of molecules: FeF3, (349 +/- 13) kJ*mol-1; UF5, (361 +/- 21) kJ*mol-1; UF6, (488 +/- 19) kJ*mol-1; MoF5, (335 +/- 17) kJ*mol-1; MoF6, (369 +/- 18) kJ*mol-1; Mo2F9, (350 +/- 40) kJ*mol-1; and Mo2F10, (363 +/- 25) kJ*mol-1.

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