Soluble alkali silicate glasses, liquids and powders are an important class of primary synthetic chemicals and are produced in large quantities both in Europe and worldwide. They are utilised in a broad range of application fields, both industrial and domestic, including detergents, chemical feedstocks, paper manufacture, civil engineering and adhesives. In order to establish viable figures for the consumption of raw materials, water and energy and the emissions to air and water and solid waste generation, the production routes for five typical commercial sodium silicate products were traced back to the extraction of the relevant raw materials from the earth. Life Cycle Inventories for these products were compiled by EMPA St. Gallen / Switzerland on behalf of CEES, a Sector Group of CEFIC, using the data input based on the production of 1995 from 12 West European silicate producers covering about 93% of the total alkaline silicate production in Western Europe.

No abstract

The phosphine complexes Co(PR3)2X2 (X = Cl, Br; R = Et, Ph, C6H11) react with furoylazide (furN3) at 25 °C to give the phosphinimine compounds Co(furN=PR3)2X2. At lower temperatures the intermediate complex Co[furN3P(C6H11)3]Br2 • Et2O with phosphatriazene as ligand could be isolated.

Die Phosphin‐Co(II)‐Komplexe (I) reagieren mit Furoylazid (II) bei Raumtemperatur unter Bildung der Phosphinimin‐Verbindungen (IV).

Die Reaktion des Titelazids (II) mit den Carbonylphosphinmetall‐Komplexen (I) oder (VI) in Benzol führt zu den Harnstoff‐Komplexen (III) bzw. (VIIa), die auch wie das Chloro‐Rh(III)‐Derivat (VIIb) durch Umsetzung der Phosphin‐Komplexe (V)und (VIII) mit Tosylisocyanat (IV) erhältlich sind.