Search results
Results from the WOW.Com Content Network
Bis(trimethylsilyl)amine is synthesized by treatment of trimethylsilyl chloride with ammonia: [3] 2 (CH 3) 3 SiCl + 3 NH 3 → [(CH 3) 3 Si] 2 NH + 2 NH 4 Cl. Ammonium nitrate together with triethylamine can be used instead. [4] This method is also useful for 15 N isotopic enrichment of HMDS.
[2] [3] Anhydrous solvents are commercially available from chemical suppliers, and are packaged in sealed containers to maintain dryness. [4] Typically anhydrous solvents will contain approximately 10 ppm of water and will increase in wetness if they are not properly stored. Organic solutions can be dried using a range of drying agents.
Dimethylformamide, DMF is an organic compound with the chemical formula H C O N(CH 3) 2.Its structure is HC(=O)−N(−CH 3) 2.Commonly abbreviated as DMF (although this initialism is sometimes used for dimethylfuran, or dimethyl fumarate), this colourless liquid is miscible with water and the majority of organic liquids.
p-Toluenesulfonic acid (PTSA, pTSA, or pTsOH) or tosylic acid (TsOH) is an organic compound with the formula CH 3 C 6 H 4 SO 3 H. It is a white extremely hygroscopic solid that is soluble in water, alcohols, and other polar organic solvents. [6] The CH 3 C 6 H 4 SO 2 group is known as the tosyl group and is often abbreviated as
The peroxyacid can be purified by washing the commercial material with a sodium hydroxide and potassium phosphate solution buffered at pH = 7.5. [ 2 ] [ 4 ] Peroxyacids are generally slightly less acidic than their carboxylic acid counterparts, so the acid impurity can be extracted if the pH is carefully controlled.
CH 3 CON(CH 3) 2 + H 2 O + HCl → CH 3 COOH + (CH 3) 2 NH 2 + Cl −. However, it is resistant to bases. For this reason DMA is a useful solvent for reactions involving strong bases such as sodium hydroxide. [7] Dimethylacetamide is commonly used as a solvent for fibers (e.g., polyacrylonitrile, spandex) or in the adhesive industry. [5]
The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.
Vacuum microwave drying is used for the US Army's experimental Close Combat Assault Ration. [3] Freeze drying or lyophilization is a drying method where the solvent is frozen prior to drying and is then sublimed, i.e., passed to the gas phase directly from the solid phase, below the melting point of the solvent. It is increasingly applied to ...