CHAPTER VI. 



CHEMICAL COMPOSITION OF EFFLORESCENT SALT AND MODE OF 

 FORMATION ; CHEMICAL COMPOSITION OF BITTERNS ; 

 ANALYSES OF CHANIHJ. 



The following are the results of the 



JSSZJL? or ^j™ 1 of eleve » s P ecimeus of reh 0I *** 



efflorescences collected from the shores of the 

 Sind dhands. 



Table \ J III. —Analyses of kalar from the Sind alkaline dhands. 



Area. 



Khairpur State 



I.— West of' 



Kara. 



II.— East 



Nara. 



of^ 



III.— Kot Jubbo 



Nawabshah Dis- 

 trict. 



Thar and ( 



Parka r Dl$-< 

 trict. ^ 



Totr 

 CO, 



Name of dhand. T f ?A ftl CI S0 4 



Mitbri . 



Galuwari 



Lalmri . 



Drigwari 



Aflhrafwaro 



Kiuo Chabo 



Charakhamvaro 



Kandhvaro 



Kklhwari 



Kbari . 

 Dangi jo Chahr 



J 14-6 21-6 

 | 12-8 1-78 



i 



i 12 5 1-6 



I 140 

 I 14-0 



13-9 



130 



16-1 6-9 



11-4 j 5-2 



16-G 7-7 

 1-5 ; 17-2 



10-60 

 5-2 

 5-3 

 6-0 

 5-1 

 5-1 

 4-9 

 2-5 

 10-0 



14-2 

 28-7 



Na a CO, 



NaHCO, 



27-0 



12-8 



21-2 



151 



20-1 



1C-0 



23-3 



16-4 



22-8 



17-2 



24-4 



14-3 



21-7 



151 



27-0 



18-5 



18-0 



14-0 



30-2 



15-6 



11 



4-2 



NaCl Na,S0 4 



35-4 

 2-9 

 2-6 

 2-6 



2-9 

 31 

 26 

 9-7 

 8-5 



12-7 



28-4 



15-7 

 7-7 

 7-8 

 7-3 

 7-5 

 7-5 

 7-2 

 3-7 



14-8 



21-0 

 42-5 



In the above analyses, only the acid radicles have been estimated 

 and the amounts of sodium salts present are obtained by calcula- 

 tion on the assumption that the acid radicles are entirely combined 

 with sodium. This is only approximately correct, since small 

 quantities of potash are probably always present. 



1 Tho greater part of the analyses given in this chapter were done und< r the 

 supervision of Mr. H. Walker, Curator, Geological Survey The remainder includ- 

 ing tho estimation of bicarbonate were done by the following member* of tbe 

 Curator's Staff under my supervision— Balm* B. B. Gupta, Sub-Assistant; B. C. 

 Gupta, Assistant Curator ; and Mahadov Ram, Laboratory Assistant, [U. del. UJ 



( 270 ) 



