44 



147. Products obtained in the manufacture of soda at 

 tne Widnes Alkali Works. 



- 1888. Exhibited by GasJcell, Deacon, $ Go. 



Caustic soda (white), 60 per cent. 



(cream), 60 per cent. (2). 



(white), 70 per cent. 



Chloride of calcium. 

 Bicarbonate of soda. 

 Soda ash, 58 per cent. 

 ,, 30 per cent. 

 Refined alkali, 58 per cent. 

 30 per cent. 



Bleaching powder. 

 Crystal carbonate. 



148. Collection of chemicals. 



1885 and 1887. Exhibited by Gamble if Son. 



Chlorate of baryta, Ba(Cl 8 ) 2 + H 2 O (4). 



Chlorate of potash (crystals), K Cl O 3 . 



Chlorate of soda (NaC10 3 ) (4). Made by Pechiney's patent 

 process. 



Sulphide of sodium (Na a S + 9 H 2 0) (3). Made by Schaffner 

 and He] big's patent process. 



149. Specimens of silicates of the alkalis. 



1876. Exhibited by William Gossage fy Sons. 



No. 1. Alkaline silicate of soda (glass), suitable for soap 

 making. 



Composition : 



100 parts, Na 2 O. 

 180 Si0 2 . 



No. 2. Silicate of soda (glass), suitable for calico printing. 

 Composition : 



100 parts, Na. 2 O. 

 310 SiO 2 . 



No. 3. Silicate of potash (glass). 

 Composition : 



100 parts, K 2 0. 

 310 SiO 2 . 



No. 4. Solution of alkaline silicate of soda. Made from No. 1. 

 1-500 specific gravity. 



No. 5. Solution of silicate of soda, 1*375 specific gravity. Made 

 from No. 2. 



No. 6. Solution of silicate of potash, T350 specific gravity. 

 Made from No. 3. 



150. Manganate and permanganate of soda. 



1887. Exhibited by Widnes Alkali Co. 



