50 The Philippine Journal of Science 



Table 5. — Results of analyses and computations (station 5). 





£sr 



_».*_ 



Radicles: 



S 



1ST 

 (VXM) 



23.13 

 16.37 











Sulphate (So4)._._ 



Chloride (CI) 



Nitrate (NOa)_ 





Concentration value 





_L« 



j™ 



Colloids: 



Silica (SiOs).... 





« 









Alkalies 











11.39 



St:."- --'-'■■--"--'. ::-:-:: 







~^ 







100.00 





11 



sZ^S'Z ls 



..:".: :.":: 









REACTING VALUES AND INDUSTRIAL USEFULNESS 

 In discussing the industrial usefulness of the waters as com 

 puted from the reacting values of their vaZZ^nsti^ 

 use is here made of the formula, developed by Stabler < 'The 

 expressions, however, are here recalculated in terms of kilo 

 grams per cubic meter of water 



/'ormw^a *.— Soda requirements (100 per cent Na TO ^ 

 Na 2 CO s = 0.05B (rFe + M. ^rCa + ^ r H ^ 



'The industrial application of water analys 

 Supply Paper 274 (1911) 165-181. 

 ' r = reaction coefficient. 



. U. S. Geol. Surv. Water 



