The Laboratory Guide a Manual of Practical Chemistry for Colleges And Schools
The Laboratory Guide a Manual of Practical Chemistry for Colleges And Schools
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Appearance, under the microscope, of deposit.
Action of the water on lead.
OILCAKE. 223 iv. ANALYSIS OF FOODS.
OILCAKE . FEEDING -ME AL.
The constituents of oilcake are albuminoids, mucilage and other soluble non-nitrogenous substances, oil, cellulose and fibre, mineral matters, and water.
In the case of oilcakes, the sample for analysis should be taken right across the middle of the cake, a strip an inch or two in width being sawn out. The sample is prepared by grinding it in a small hand coff...ee- or spice-mill, sifting the product, and again grinding the remainder left on the sieve.
It will be found that oil and nitrogen can be best determined in a finely ground sample.
WATEE is determined by drying 2 or 3 grams in the water- oven until constant. The intervals between the weighings should not be too long, as the substance in most cases begins finally to gain weight from the oxidation of the oil.
OIL. From 2 to 4 grams, according to its probable richness in oil, of the finely powdered cake are introduced into the tube C (fig.
What to read after The Laboratory Guide a Manual of Practical Chemistry for Colleges And Schools?
You can find similar books in the "Read Also" column, or choose other free books by A H Arthur Herbert Church to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Appearance, under the microscope, of deposit.
Action of the water on lead.
OILCAKE. 223 iv. ANALYSIS OF FOODS.
OILCAKE . FEEDING -ME AL.
The constituents of oilcake are albuminoids, mucilage and other soluble non-nitrogenous substances, oil, cellulose and fibre, mineral matters, and water.
In the case of oilcakes, the sample for analysis should be taken right across the middle of the cake, a strip an inch or two in width being sawn out. The sample is prepared by grinding it in a small hand coff...ee- or spice-mill, sifting the product, and again grinding the remainder left on the sieve.
It will be found that oil and nitrogen can be best determined in a finely ground sample.
WATEE is determined by drying 2 or 3 grams in the water- oven until constant. The intervals between the weighings should not be too long, as the substance in most cases begins finally to gain weight from the oxidation of the oil.
OIL. From 2 to 4 grams, according to its probable richness in oil, of the finely powdered cake are introduced into the tube C (fig.
What to read after The Laboratory Guide a Manual of Practical Chemistry for Colleges And Schools?
You can find similar books in the "Read Also" column, or choose other free books by A H Arthur Herbert Church to read onlineMoreLess
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