是浓盐酸concentrated hydrochloric acid 的简写，一般是指浓度在36～37％的

2018年3月27日 · In the chemistry lab, I stupidly decided to mix hydrochloric acid and sulphuric acid, both concentrated, in a random ratio, which was about 50 ml 50 m l. When I poured them in one test tube, the result was a vigorous reaction, with the green coloured liquid mixture "jumping" in the test tube and a white gas being released.

2021年8月20日 · Protocols, applications and pricing for HPLC columns, micro dialysis membranes and kits, 96 well dialysis or equilibrium dialysis plates, and micro sample SPE …

Conc. Sulphuric acid is added to copper and heated. Sulphur dioxide, which is colourless gas with the smell of burnt sulphur is evolved. \[\ce{Cu + 2H2SO4 -> CuSO4 + 2H2O + SO2}\]

2012年5月24日 · Conc是浓度，RSD是相对平均偏差 relatibe standard deviation，REF是基准，ABS是吸光度

2020年11月16日 · H2SO4, HCl and HNO3 are all strong acids, and dissociate completely in water at moderate concentrations. HCl is the strongest acid (indicated by the lowest pKa) followed by H2SO4 and HNO3. H3PO4 is the weakest of the acids. What happens when HCl gas is passed through concentrated Sulphuric acid?

If they are dilute, yes. Otherwise, you will want to add cold H2SO4 very slowly to cold HCl, in a fume hood. Or you can mix HCl with a sulfate salt, it just won't be as strong of an acid.

2005年10月16日 · Pure HNO3 can be made by distilling 68% (azeotropic HNO3) with conc. H2SO4. 90+ % HNO3 can be made in this way, leaving the water behind in the sulphuric acid, due to its dehydrating properties. Making 100% HNO3 …

2011年11月17日 · 是浓盐酸concentrated hydrochloric acid 的简写，一般是指浓度在36～37％的，通常买来的试剂级盐酸，36%，12mol/L

2018年2月18日 · This is not the case for conc. nitric acid (~65%) or conc. hydrochloric acid (~36%). In addition conc. H2SO4 is a powerful dehydrating agent (eg. with sucrose). It is also a strong oxidising agent eg. gives SO2 rather than hydrogen with metals.