Some Technical Methods of Testing Miscellaneous Supplies Including Paints And P
Some Technical Methods of Testing Miscellaneous Supplies Including Paints And P
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Boil 1 gram of the sample with 75 cc of water and 25 cc of alcohol, filter, wash with a mixture of alcohol and water (1:3), and determine sulphuric acid In the filtrate by the usual method of precipitation with barium chlorid. The soluble sulphate may be calculated to zinc sulphate.
(c) INSOLUBLE AND TOTAL SULPHATE.
Treat 1 gram in a GOO cc beaker with 10 cc of water, 10 cc of strong hydro- chloric acid, and 5 grams of ammonium chlorid, heat on a steam bath in a cov- ered beaker for five minute...s, add hot water to make about 400 cc, boil for five minutes, and filter to separate any insoluble material. (A pure color should be completely dissolved. ) Wash with hot water, ignite, and weigh the insoluble.
WHITE PIGMENTS. 23 To the boiling hot filtrate add slowly, with stirring, 20 cc of a 10 per cent barium chlorid solution ; let stand for two hours on the steam bath, filter, wash, ignite, and weigh as barium sulphate. Calculate the total sulphate (SO 4 ), deduct from it the soluble sulphate (SOO, and figure the remainder as lead sulphate.
What to read after Some Technical Methods of Testing Miscellaneous Supplies Including Paints And P?
You can find similar books in the "Read Also" column, or choose other free books by Percy Hargraves Walker to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Boil 1 gram of the sample with 75 cc of water and 25 cc of alcohol, filter, wash with a mixture of alcohol and water (1:3), and determine sulphuric acid In the filtrate by the usual method of precipitation with barium chlorid. The soluble sulphate may be calculated to zinc sulphate.
(c) INSOLUBLE AND TOTAL SULPHATE.
Treat 1 gram in a GOO cc beaker with 10 cc of water, 10 cc of strong hydro- chloric acid, and 5 grams of ammonium chlorid, heat on a steam bath in a cov- ered beaker for five minute...s, add hot water to make about 400 cc, boil for five minutes, and filter to separate any insoluble material. (A pure color should be completely dissolved. ) Wash with hot water, ignite, and weigh the insoluble.
WHITE PIGMENTS. 23 To the boiling hot filtrate add slowly, with stirring, 20 cc of a 10 per cent barium chlorid solution ; let stand for two hours on the steam bath, filter, wash, ignite, and weigh as barium sulphate. Calculate the total sulphate (SO 4 ), deduct from it the soluble sulphate (SOO, and figure the remainder as lead sulphate.
What to read after Some Technical Methods of Testing Miscellaneous Supplies Including Paints And P?
You can find similar books in the "Read Also" column, or choose other free books by Percy Hargraves Walker to read onlineMoreLess
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