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List of Chemical Substances
Published in T.S.S. Dikshith, and Safety, 2016
Exposures to diethylamine cause adverse health effects. The symptoms of toxicity include irritation of skin, eyes, and mucous membrane. The acute oral LD50 and acute dermal LD 50in rats and rabbits are 540 and 580 mg/kg, respectively, and the acute inhalation LC50 (4 h) in rats is 4000 ppm. The pathomorphological changes caused by diethylamine include lungs, liver, and kidneys, cellular infiltration, bronchopneumonia, parenchymatous degeneration, and nephritis.
Energy storehouse and a remarkable photocatalyst: Al2S3/Cu2S/Ni17S18 thin film as supercapacitor electrode and pollutants degradation
Published in Surface Engineering, 2023
Mahwash Mahar Gul, Khuram Shahzad Ahmad
Salts of metals, Al(NO3)3.H2O, Cu(NO3)2.2 ½ H2O and N2NiO6.6H2O were used (99% purity). Various reagents were used in the experimentation such as carbon disulphide, ethanol, potassium hydroxide (base), diethyl amine (analytical grade) procured from Sigma Aldrich. In metal sulphide synthesis, carbon disulphide is often used in the precipitation method, where a metal salt is dissolved in CS2 and then reacted with a sulphur source to form a metal sulphide precipitate. Potassium hydroxide (KOH) is commonly used in metal sulphide synthesis as a base or a source of hydroxide ions, which can react with metal cations to form metal hydroxides. These metal hydroxides can then react with sulphur sources to produce metal sulphides. Additionally, KOH can also act as a stabiliser, preventing the agglomeration of metal sulphide nanoparticles. Diethylamine is a commonly used organic base in metal sulphide synthesis because it can act as a strong reducing agent and a source of sulphur. Its amine group (NH2) can readily donate a lone pair of electrons to metal ions, leading to the reduction of the metal cations and the formation of metal nanoparticles. It also acts as a capping agent, stabilizing the formed metal sulphide nanoparticles by preventing agglomeration and controlling their growth. This can result in metal sulphides with improved properties such as higher catalytic activity and better stability. During the experiments distilled water was also utilised. Several significant instruments were required in this research work, which included digital weighing balance (Shimadzu, Japan), magnetic stirring plate (Wisestir, Germany), fume-hood (Puffinville, France). Instruments for characterisation included UV-vis spectrophotometer (Biomedical service, 1602, Spain), Fourier transform infrared spectrophotometer (Shimadzu, Japan), scanning electron microscope (JSM-6610, Jeol, Japan) and X-ray diffractometer (Bruker D-8, Shimadzu, Japan). Potentiostat (Gamry, USA) was also used for the electrochemical investigation.