UF(4) definition
Examples of UF(4) in a sentence
Figure 2 shows the Raman spectra of UF4 and the three hydrates acquired with the 325 nm laser.
The complex polymeric structure of UF4 and the hydrates was clearly identified via the phonons from numerous optical F-F vibrational modes in the lower wavenumber region (100 – 500 cm-1), which were measured with a high signal to noise ratio.
Figure 3: IR spectrum of each UF4 hydrate hydrates in order from top to bottom, UF4(H2O)2.5, U3F12(H2O), UF4(H2O)0.33, and UF4 anhydrous Figure 4: IR and Raman together to showcase the difference in the OH stretching region and HOH bending region.
The absence of fluorescence with the 325 nm laser excitation line, (except for the bands just mentioned), provided a consistent, high-resolution means of acquiring the Raman spectra of UF4 and the three hydrates.
Approximately 16 bands exist in this region in the anhydrous UF4 system (as previously reported12) with four intense bands located at 129, 167, 256, and 297 cm-1.
To determine the top heavy ratio, the Advisory Committee will use the following interest rate and mortality assumptions to value accrued benefits under a defined benefit plan: UF-4.
Figures 1 and 2 show the Raman spectra of anhydrous UF4 and the three hydrates.
IIFP agrees to provide timely and accurate reporting of stored UF4 quantities on a periodic basis to LES.
Additionally, IIFP explicitly agrees to limit the amount of IIFP produced UF4 stored on-site or at remote locations to 1.5 million pounds (or less if so required by regulation).
If a volume of 1.5 million pounds is reached, LES shall stop all further shipments of DUF6 until the volume of UF4 stored on-site or at remote locations is reduced to 1.0 million pounds.