1)  silver and mercury
					
	
					
				
				
	
					
				银和汞
				1.
					The stopped-flow FIA different kinetic spectrophotometric method for simultaneous determination oftrace amount of silver and mercury has been proposed based on the difference of formation rate of ion-associa-tion complex of Ag ̄+(Hg ̄(2+))-SCN ̄--Rhodamine B in aqueous systen containing 0.
						
						提出了同时测定环境样品中痕量银和汞的流动注射-速差动力学光度法。
					
					2)  Ag and Hg mixer
					
	
					
				
				
	
					
				银汞调和器
			
					3)  Amalgam
					[英][ə'mælɡəm]  [美][ə'mælgəm]
					
	
					
				
				
	
					
				银汞
				1.
					Objective To compare the result of 3M preformed crowns and Amalgam restoration of primary molars and to evaluate the clinical effect.
						
						方法选择56例5~8岁双侧同名乳磨牙颌面龋损的儿童,左侧为实验组,备牙后3M预成冠修复,右侧对照组,银汞常规备洞充填。
					
					4)  argental mercury
					
	
					
				
				
	
					
				银汞膏;含银汞
			
					5)  Ag 2HgI 4
					
	
					
				
				
	
					
				碘汞酸银
				1.
					The kinetics of thermal decomposition of Ag 2HgI 4 is studied by both isothermal and nonisothermal TG methods.
						
						分别用等温热重法和程序升温热重法研究了碘汞酸银热分解动力学,得到了反应级数、速率常数和活化能。
					
					6)  Silver amalgam
					
	
					
				
				
	
					
				银汞合金
				1.
					Adverse events of silver amalgam in dental practice;
					
					
						
						
					
						银汞合金在牙科应用中的不良事件
					2.
					Theraputic effects between Dyract AP and silver amalgam in   filling class I occlusal cavity;
						
						Dyract光固化复合体与银汞合金充填面洞的疗效对比
					3.
					Objective:To appraise the filling effect of silver amalgam and glass-ionomer in the elderly decayed tooth Ⅰ&Ⅱ type cavity using ART technique,to expands the treating range of the ART technique.
						
						目的:评价ART(非创伤性充填)技术中银汞合金和玻璃离子在老年人龋齿Ⅰ类、Ⅱ类洞的充填效果。
					补充资料:汞(ⅰ)和汞(ⅱ)的转化
		从汞的电位图上可看出,hg22+在溶液中不象cu+那样容易歧化。相反,在溶液中hg2+可氧化hg而生成hg22+:
hg2+ + hg = hg22+
k = [hg22+]/[hg2+] =87
表明平衡时,hg2+基本上都转变为hg22+,因此hg(ⅱ)化合物用金属汞还原,即可得到hg(ⅰ)化合物。
由于hg2+ + hg = hg22+反应的平衡常数较大,平衡强烈偏向于生成hg22+的一方,为使hg(ⅰ)转化为hg(ⅱ),即hg22+的歧化反应能够进行,必须降低溶液中hg2+的浓度,例如使之变为某些难溶物或难解离的配合物:
hg22+ + 2oh- = hgo↓ + hg↓ + h2o
hg22+ + s2- = hgs↓ + hg↓
hg22+ + 2cn- = hg(cn)2↓ + hg↓
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
	参考词条