Practical Flavoring Extract Maker a Treatise On the Manufacture of the Principa
Practical Flavoring Extract Maker a Treatise On the Manufacture of the Principa
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The liquid is then ex- tracted in a separator with three successive portions of 15 c. C. , 10 c. C. And 5 c. C. Of ether. The mixed ethereal extracts are washed with 10 c. C. Of water that has been previously saturated with ether, so as to remove prac- tically all of the alcohol. The ether solution is now trans- ferred to a Babcock milk bottle, which is immersed in warm water and the ether driven off. Water is now added and the bottle is placed in the centrifugal ap- paratus, and the essential ...oil read off in the bottle in the same way as with milk fat. The author claims that this process renders very accurate results, as the essential oil is scarcely exposed to heat, and there is, therefore, little risk of loss by evaporation.
TO DETERMINE THE PER CENT. OF GAS IN AQUA-AMMONIA.
The "Baume" hydrometer for ammonia renders fairly good results, provided no alkaline salts to any appreciable extent are present; this condition cj, n be determined by evaporation over a steam bath. For comparative testing the use of the burette will be found more accurate, using a standard acid solution in the burette and 15 c.
What to read after Practical Flavoring Extract Maker a Treatise On the Manufacture of the Principa?
You can find similar books in the "Read Also" column, or choose other free books by E J Edward Joseph Kessler to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The liquid is then ex- tracted in a separator with three successive portions of 15 c. C. , 10 c. C. And 5 c. C. Of ether. The mixed ethereal extracts are washed with 10 c. C. Of water that has been previously saturated with ether, so as to remove prac- tically all of the alcohol. The ether solution is now trans- ferred to a Babcock milk bottle, which is immersed in warm water and the ether driven off. Water is now added and the bottle is placed in the centrifugal ap- paratus, and the essential ...oil read off in the bottle in the same way as with milk fat. The author claims that this process renders very accurate results, as the essential oil is scarcely exposed to heat, and there is, therefore, little risk of loss by evaporation.
TO DETERMINE THE PER CENT. OF GAS IN AQUA-AMMONIA.
The "Baume" hydrometer for ammonia renders fairly good results, provided no alkaline salts to any appreciable extent are present; this condition cj, n be determined by evaporation over a steam bath. For comparative testing the use of the burette will be found more accurate, using a standard acid solution in the burette and 15 c.
What to read after Practical Flavoring Extract Maker a Treatise On the Manufacture of the Principa?
You can find similar books in the "Read Also" column, or choose other free books by E J Edward Joseph Kessler to read onlineMoreLess
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