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and barrier anodic films can be grown in acid (e.g., chromic, sulphuric, oxalic, phosphoric and their mixtures) and alkaline (e.g., ammonium pentaborate, sodium phosphate) solutions, respectively......
bath) for 1 h. The contents were evaporated to a small volume (1-2 mL). About 25 mL of ammonium acetate (1.0 mol/L, adjusted to pH 2 with nitric acid) was added......
particles synthesized by decomposition of aluminium ammonium sulphate [NH4Al(SO4)2] powder in molten aluminium alloy. They showed that 0.8 wt.% of in-situ γ-Al2O3 formed by decomposition of NH4Al(SO4)2......
of saline sulphate minerals [J]. Geological Society of America Bulletin, 1963, 74: 709-734. [35] RYSKIN Y I. The vibrations of protons in minerals: Hydroxyl, water and ammonium [C]// The Infrared......
the corrosion inhibition of Zn and its alloys with Ni by two environment-friendly surfactants, cetyltrimethyl- ammonium bromide (CTMAB) and polyethylene glycol 400 (PEG-400), which were used......
flotation technology[J]. China Tungsten Industry, 2009, 24(4): 23-27. [26] YANG Fan, SUN Wei, HU Yue-hua, LONG Si-si. Cationic flotation of scheelite from calcite using quaternary ammonium salts......
with aqueous ammonium, the gray precipitate was collected as the crystalline product by filtration. The product was dissolved in THF, and the purple crystal of 5,10,15,20-tetrakis(4- aminophenyl......
, GUO H, WANG W. Behavior of ammonium adsorption by clay mineral halloysite [J]. Transactions of Nonferrous Metals Society of China, 2017, 27(7): 1627-1635. [12] SUN Y B, LI J X, WANG X K. The retention......
for AA2024T3 alloy [J]. Corrosion Science, 2010, 52: 3356-3366. [15] MATTER A E, KOZHUKHAROV S, MACHKOVA M, KOZHUKHAROV V. Comparison between the inhibition efficiencies of Ce(III) and Ce(IV) ammonium......
, ammonium bicarbonate (NH4HCO3) particles (Fig. 1(c)) with irregular shape and size distribution between 100 and 500 μm, furnished by Alfa Aesar, were used to induce large pores. Fig. 1......
