A laboratory instrument for reusable accumulation of 15N isotope is described. The isotope is accumulated by condensation at the center of a jet of heated ammonia vapor as it is passed through a nozzle. Using this instrument, this procedure can be performed many times without dismantling the syste...
Preparation of binders from inexpensive by-products for use in high-pressure phenolic laminates. I: Laboratory preparation of phenosolvan pitch resols and the manufacture and testing of 10-ply laminatesCaustic and ammonia catalyzed resols from phenosolvan pitch and formaldehyde ...
There is growing interest in the use of ammonia as a fuel in Solid Oxide Fuel Cells (SOFCs). However, the possible reaction between the electrolyte and amm... E Kendrick,D Headspith,A Orera,... - 《Journal of Materials Chemistry》 被引量: 41发表: 2009年 Preparation of Fe2Ni2N/SiO2 ...
Step-by-Step Solution for Preparing Nitric Acid in the Laboratory:1. Identify the Reactants: - The primary reactants used for the preparation of nitric acid in the laboratory are a nitrate salt (such as pota
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Making anunited microscale laboratoryof the decomposition and synthesis of ammonia,not only can help students to solve difficulties,but also can enhance their creative thinking abilities. 化学反应的可逆性是化学教学的重点又是学生学习的难点 ,设计氨的分解与合成联合微型实验,既有助于学生突破难点又培养了学...
MH Jones,JT Woodcock - 《International Journal of Mineral Processing》 被引量: 40发表: 1979年 Effects of inorganic sulphide and ammonia on microbial corrosion behaviour of 70Cu–30Ni alloy in sea water A laboratory electrochemical investigation was carried out on the effects of inorganic sulphide ...
Gas purity can have a great effect on the outcome of an analytical laboratory procedure and must be taken into consideration when using a laboratory gas for sample preparation or measurement. Laboratory and calibration gases are also used in emission and absorption spectroscopy, mass spectros...
Allamandola, Racemic amino acids from the ultraviolet photolysis of interstellar ice analogues. Nature 416, 401 (2002) Article ADS Google Scholar J.E. Bertie, M. Refaat Shehata, Ammonia dihydrate: preparation, x-ray powder diffraction pattern and infrared spectrum of \mbox{NH}3\cdot 2\...
2011). Previous studies have shown that Basta decreases the chlorophyll content and photosynthetic efficiency by impeding ammonia digestion in plants, which decreases ammonia accumulation. Generally, it takes 2 to 3 d for Basta to be transmitted to various parts of plants through the cuticle and ...