The drop-dry deposition (DDD) is a simple chemical technique of thin film deposition, which can be applied to metal oxides. solution an aqueous including salt and alkali. However, some ions react spontaneously with water precipitate. This work the first attempt use complexing agents in DDD suppress precipitation. SnO2 films are fabricated using Na2S2O3 as agent via annealing air. results Auger ...

The effect of Lawsonia inermis Linn Leaf extract on electroless deposition Zinc-P alloy mild steel is studied in alkaline solutions. experimental processing parameters the rate investigated during plating. bath compositions and operating conditions are optimized. results obtained show inclusion Zn-P coating found to be increased by increasing volume additives from 0.5ml 1.5ml. Structured UV - A...

Two macrocyclic bis(ureas) 1 and 2, both based on diphenylurea, have been synthesized. Compound 1 represents the smaller ring with two ethynylene groups as linkers and 2 the larger ring with two butadiynylene groups. On thermal treatment to 130 °C molecule 1 splits up into two dihydroindoloquinolinone (3) molecules. Both compounds 1 and 2 form adducts with polar molecules such as dimethyl sulfo...

Complexometric titrations rely on a drastic change of the pM value at the equivalence point with a water soluble chelator forming typically 1 : 1 complexes of high stability. The available chemical toolbox of suitable chelating compounds is unfortunately limited because many promising complexing agents are not water soluble. We introduce here a novel class of complexometric titration reagents, ...