178 Collective View of all the Frigorific Mixtures 



Table I. 

 This Table consists of frigorific mixtures, having the power 

 oi generating or creating cold, without the aid of ice s 

 sufficient for all useful and philosophical purposes, in any 

 part of the world, at any season. 



Frigorific Mixtures, without Ice. 



Mixtures. 



Muriate of ammonia 

 Nitrate of potash . . . 

 Water 



. 5 parts 

 5 

 16 







Muriate of ammonia 

 Nitrate of potash ... 



5 parts 

 . 5 

 8 

 16 



Nitrate of ammonia 



1 part 

 1 







Nitrate of ammonia . 

 Carbonate of soda ... 



. 1 part 

 1 

 1 



Sulphate of soda 

 Diluted nitric acid 



3 parts 



Sulphate of soda 

 Muriate of ammonia 

 Nitrate of potash . . 

 Diluted nitric acid . 



6 parts 



4 



o 



4 



Sulphate of soda . . . 

 Nitrate of ammonia 

 Diluted nitric acid . , 



6 parts 



5 



4 



Thermometer sinks. 



From + 50°to+10°\ 



From + 50° to + 4 C 



From + 50° to + 4°. 



From + 50° to — 7 C 



From + 50° to — 3°. 



From + 50° to — 10°. 



Phosphate of soda .. 

 Diluted nitric acid . . 



9 parts 

 4 



Phosphate of soda . . 

 Nitrate of ammonia 

 Diluted nitric acid . . 



9 parts 

 6 



4 



Sulphate of soda 

 Muriatic acid . . 



8 parts 

 5 



Sulphate of soda 



I Diluted sulphuric acid 



5 parts 

 4 



From + 50° to — l4 e . 



From + 50° to — 12' 



From + 50° to — 21° 



Degrees of cold 

 produeed. 



40 



46 



46 



57 



53 



60 



64 



62 



71 



From + 50° to 0°. 



From * 50° to + 3°. 



50 



47 



N.B. If the materials are mixed at a warmer temperature 

 than that expressed in the table, the effect will be propor- 

 tionably greater : thus, if the most powerful of these mix- 

 tures be made when the air is + 85°, it will sink the ther- 

 mometer to + 2°. 



Table 



