INTRODUCTION 5 



Nitric acid, concentrated. 

 Fuming nitric acid. 

 Hydrochloric acid, concentrated. 

 „ „ 0*2 per cent.^ 



Acetic acid, glacial. 

 „ „ 20 per cent. 



9 



i> >" -^ >) 



Glyoxylic acid. 



Caustic potash, 20 per cent. 



„ . „ 0-1 

 Ammonia. 



Sodium carbonate, 1 per cent. 

 Ammonium sulphide solution. 

 Ammoniiun sulphate, saturated solution. 

 SUver nitrate, 1 per cent. 

 Barium chloride, satiu-ated solution. 

 Ammonium molybdate solution. 

 Millon's reagent.- 

 Solution of ferrocyanide of potassium. 



„ litmus. 



„ sodimn phosphate. 



„ iodine in potassium iodide. 



Methylated spirit. 

 Ether. 



Esbach's reagent.' 



Solution of copper sulphate, 1 per cent. 

 Fehling's solution. 



The following additional reagents will be required by those taking the 

 advanced course : — 



Solution of mercuric chloride. 



„ potassium ferricyanide. 



Sodimn carbonate, saturated solution. 



„ chloride, saturated solution. 



„ „ 10-per-cent. solution. 



Magnesium sulphate, saturated solution. 

 Lime water. 

 Baryta mixture.* 

 Sodium acetate solution.* 

 Phosphoric acid, 0'5 per cent. 

 Absolute alcohol. 



In addition to these, there should be kept in stock in the laboratory, to be 

 given out for the lessons in which they are used, the following : — 



SoHd sodium chloride. 

 „ magnesium sulphate. 



' Made by adding 994 c.c. of water to 6 c.c. of the concentrated hydrochloric 

 acid of the British Pharmacopoeia. 



■^ Mercury is dissolved in its own weight of strong nitric acid. The solution so 

 obtained is diluted with twice its volume of water. The decanted clear liquid is 

 Millon's reagent. 



' Ten grammes of picric acid and 20 grammes of citric acid are dissolved in 

 800 to 900 c.c. of boUing water, and then siiSicient water added to make up a litre. 



' Made by mixing 1 volume of barium nitrate solution with 2 of barium hydrate 

 solution, both saturated in the cold. 



* Prepared as follows :— Sodimn acetate, 100 grammes ; water, 900 c.c. ; glacial 

 acetic acid, 100 c.c. 



