The thermodynamically favored reaction between water and magnesium, Mg+2H 2OrarrMg(OH) 2+H 2, is normally sluggish, but it becomes reasonably rapid when a milled composite of powdered magnesium metal and powdered iron (1-10 mol%) is used with sodium chloride solutions. Iron functions as an...
A chemical heat pump using the reaction system of magnesium oxide/water was studied as a thermal storage system by kinetic analysis. This heat pump has bee... Y Kato,N Yamashita,Y Yoshizawa - 《Kagaku Kogaku Ronbunshu》 被引量: 15发表: 1993年 Operability of a thermally driven magnesium ox...
The method comprises the steps of: providing in a reaction container a composition including respective quantities of particulate elemental magnesium, particulate elemental iron, an additional elemental metal selected from the group consisting of particulate elemental aluminum and particulate elemental zinc at...
In the base exchange process, raw water containingcalciumand magnesium salts passes through a bed of cation synthetic resin activated by sodium base.(在碱离子交换过程中,包含钙盐和镁盐的原水流经由碱性钠盐活化的阳离子合成树脂床｡)Calcium and magnesium salts are exchanged for quantitatively equivalent...
Sodium is applied in water purification. It may function as a counter ion of calcium and magnesium inwater softeners. Caustic soda and sodium per carbonate are applied to neutralize acids. Sodium bisulphite (NaHSO3) is applied as a reductor for strongly oxidizing chemicals, sodium sulphide (Na2S...
Magnesium compounds obtainable in seawater have a variety of useful applications in the agricultural, nutritional, chemical, construction and industrial industries. Magnesium itself is a low-density and therefore lightweight metal that produces strong alloys, which in recent years have replaced aluminum in...
Magnesium perchlorate\({\text{Mg}}({\text{ClO}}_{4} )_{2}\)(listed in ISO 12572 and EN 12086 [35]) behaves similarly [36,37]. Provided that the desiccant has not absorbed enough water to convert entirely to the hexahydrate (about 48 percent by weight) it maintains an RH\(\le 0....
1. water that contains salts (as calcium and magnesium ions) that limit the formation of lather with soap 行业词典 体育 硬水 地质学 硬水 生态学 硬水流经石灰岩含大量碱性物质、碳酸氢盐含量大于100 mg/L(CaCO 3)、硬度大于150 mg/L(CaCO 3) 的水。
Three-dimensional cationic covalent organic framework membranes for rapid and selective lithium extraction from saline water The counterion-mediated positively charged channels in covalent organic framework membranes enable the fast transport of lithium ions, realizing high lithium/magnesium selectivity without...
The study assessed electrical conductivity, organic content, nitrogen (N), phosphorus (P), magnesium (Mg) and calcium (Ca), as well as the temperature and worm population dynamics from the vermicompost. The vermicompost of water hyacinth and cattle dung together had the most N, P and K, ...