CASEIN PREPARATIONS. 443 



Sanatogen, Regetone, Vitafer, etc. Casein combined with 

 5 per cent, of sodium glycero-phosphate. 



Lacto-Somatose.- This consists of albumoses derived from 

 casein by heating with superheated steam. 



Sanose. A mixture of 80 per cent, casein and 20 per cent, 

 albumoses. 



Nutrose. The sodium compound of casein. 



Eucasin. The ammonium compound of casein. 



Argonin. The silver compound of casein. 



Lactoform consists essentially of casein precipitated by 

 metallic salts and subsequently hardened by formaldehyde. It 

 is employed in place of horn, ivory, ebony, amber, etc. By 

 painting walls twice with a 15 per cent, solution of casein and a 

 10 per cent, solution of zinc chloride, followed by an application 

 of strong formaldehyde solution, they may be rendered damp- 

 proof. 



Casein treated with formaldehyde is also used in the prepara- 

 tion of photographic plates, and for artificial tortoiseshell, etc. 



