408 



The Philippine Journal of Science 



1914 



Table VIII. — Analyses of waters from mineral 



[Numbers give 





Laboratory No. 



75529. 



Date 



January, 1910 





Rizal, near Tanay 



Source 



Spring 



Physical properties _ _ 



Good _ 



Total solids 





Silica (SiOo) 



103.73 



Sulphuric acid radicle (SO4) _ _ 



Bicarbonic acid radicle (HCO3) 



2.807 



175.68 



Carbonic acid radicle (COi) _ 





Nitric acid radicle (NO3) _ 



Nitrous acid radicle ( NO2) _ 



Phosphoric acid radicle (POi) 



0.419 



Trace 



1.209 



Metaboric acid radicle (BO2) _ 



Arsenic acid radicle ( AsO., ) _ 



Chlorine ( 01 ) 



Nil 



Nil 



2.32 





Nil 



Iodine (I) _ 



Nil 



Iron (Fe) „ 



Aluminium (Al).... 



Trace 



Trace 



Iron oxide (Fe^Os) and alumina (AI2O3) 





Manganese (Mn) 





Rariiim (Ba) 





Strontium (Sr) _ 





Calcium (Ca) 



34.069 



Magnesium (Mg) 



10.646 



Potassium (K) 



3 49 



SntliiiTn (Na) 



16.28 



Lithium ( Li ) 





Ammonium (NHj) 





Oxygen to form Fe^Os , 





Free carbon dioxide ( COo) 





Classification 





Remarks 







