FREE BOOKS

Author's List




PREV.   NEXT  
|<   234   235   236   237   238   239   240   241   242   243   244   245   246   247   248   249   250   251   252   253   254   255   256   257   258  
259   260   261   262   263   264   265   266   267   268   269   270   271   272   273   274   275   276   277   278   279   280   281   282   283   >>   >|  
ane field, on the Diamond estate, in St. Vincent, West Indies: -- Alumina soluble in acids 12.87 Organic matter 11.26 Gypsum .23 Carbonate of lime 12.52 ---- of magnesia .71 Oxide of iron 8.51 Oxide of manganese .33 Insoluble silicious and aluminous matter 53.57 ------ 100.00 The sugar of the cane and grape sugar are distinguished by the following difference in their elements, as proved by analysis:-- Cane sugar. Grape sugar. Carbon 12 12 Hydrogen 10 12 Oxygen 10 12 Water 1 2 There is a remarkable difference, however, between their fermentable properties. When a solution is made of the same quantities of these two sugars, in equal proportions of distilled water, it will be necessary to add eight times as much of the same ferment to induce alcoholic fermentation in the solution of cane sugar, as in that of grape sugar. Under the action of a larger quantity of ferment, cane sugar is transformed into grape sugar. If you cut a sugar cane in two, and examine the interior part of it with a magnifying glass, you perceive the crystals of sugar as distinct and as white as those of double-refined sugar. The object of the operator should be then either to extract those crystals without altering their color, or, if that be found impracticable, to separate them from the impurities mixed with them, while the juice is in its natural state, and yet contains but little coloring matter. Instead of this, the juice is limed while all the impurities are in it. In separating the feculencies from the juice and uniting them in large flakes, lime dissolves a portion of them and forms with them coloring matter, which we all know at once discolors the juice, when lime is used in excess. Afterwards heat is applied, either in clarifiers or in the grand copper, but most of the impurities found in the juice will decompose, and burn at a degree of heat far below the boiling point, say at 120 deg. of Fahrenheit. This is shown by the thick scales continually forming in the grande. From that degree of heat the decomposi
PREV.   NEXT  
|<   234   235   236   237   238   239   240   241   242   243   244   245   246   247   248   249   250   251   252   253   254   255   256   257   258  
259   260   261   262   263   264   265   266   267   268   269   270   271   272   273   274   275   276   277   278   279   280   281   282   283   >>   >|  



Top keywords:

matter

 

impurities

 
difference
 

crystals

 

solution

 

ferment

 

degree

 
coloring
 

natural

 

distinct


altering

 

refined

 

object

 
operator
 
extract
 

separate

 

double

 
impracticable
 

dissolves

 

boiling


copper
 

decompose

 
Fahrenheit
 

forming

 

grande

 

decomposi

 

continually

 

scales

 

clarifiers

 
flakes

perceive

 

portion

 

uniting

 
feculencies
 

separating

 
excess
 
Afterwards
 

applied

 

discolors

 
Instead

fermentation

 
Insoluble
 
silicious
 

aluminous

 

manganese

 

proved

 

analysis

 
elements
 
distinguished
 

magnesia