Sodium diphenylphosphide (Ph₂PNa) is readily prepared by adding Na to a solution of the diphosphine in dry Et₂O or THF (exothermic!), whereby the colour becomes yellow and the orange Na salt separates.

Gradually analytical thinking was taking a greater awareness of the importance it took for all the investigation system of the possible identification or traceability of fixed costs and, in general, of the indirects of other times.

Once ecologists have more thoroughly identified indoor species, they hope to come up with strategies to scientifically manage homes, by eliminating harmful taxa and fostering species beneficial to our health.

The name Serlao, meaning originally the interior as distinguished from the maritime country, has come to be applied to dry, hilly, and stony districts of the campos only suited for pasture. To the agricultural coast belt of the eastern provinces …