You might be confused to see Cafe 125 listed on your W-2 form. This may sound like it has something to do with where you go on your lunch break, but there is a more reasonable explanation. Cafe 125 stands for IRS regulation code section 125 regarding tax-free cafeteria plans.
The tantalum nitride films consist of a mixture of metallic tantalum, Î²-TaN 0.05, Î³-Ta 2 N and cubic/hexagonal TaN phases, their composition depending on both the ion dose and ion energy. 13. The kinetics of nitridation is characterised by two stages.
The complex dianion is formed with the release of two moles of H + from EDTA, with the indicator being released from the copper ion. The complex dianion has the structure shown in Figure 9.1. Note that the anion completely surrounds the cation, forming six coordinate covalent bonds to copper and a very stable complex.he indicator used for the titration is called murexide. This indicator is highly colored and will complex with the copper ion to give a different colored species. During the titration, the EDTA 2â forms a more stable complex and frees the indicator, which then displays its original color.