THE 



QUARTERLY JOURNAL, 



Ja7wary, 1821. 



r 



Art. I. Observations on tJie Analysis of Mineral Waters, 

 % W. T. Brande, Sec. R.S. Prof. Chem. R.I., ^c. 



J HE following observations relating to the analysis of mineral 

 waters have been drawn iip principally with a view to facilitate 

 the progress of the student, in that very difficult department of 

 analytical chemistry. I have endeavoured to simplify the details 

 by pointing out the readiest methods of recognising and sepa- 

 rating the substances which usually occur, and have, therefore 

 omitted the enumeration of the more rare ingredients, or of those 

 which are limited to particular places. 



I have not adverted to the mode recommended by Dr. Murray, 

 (Edinburgh Philosophical Transactions^ VIII.^ because I cannot 

 readily admit the existence of incompatible salt;s to the extent 

 which his principle requires ; nor do I think that it materially 

 facilitates the analysis in those cases which present peculiar 

 difficulties to the plan of determining the ingredients by eva- 

 poration. 



Sect. \.,0f the Tests and Apparatus required in the Examination 

 and Analysis of Mineral Waters. 



Those who have not access to a regular laboratory will find it 

 convenient to arrange the following tests and re-agents in the 

 manner represented in the annexed drawing; (Plate II.) the larger 

 phials should contain about six ounces by measure ; the second 

 size, three ounces ; and the smallest, one ounce. Of these phials, 

 ^he greater number should be simply stopped ; and a few of 

 them provided with an elongated stopper (22) dipping into the 

 fluid which they contain. 



Vol. X. Q 



