The Methods of Textile Chemistry; Being the Syllabus of a Lecture Course Adapted for Use in Textile Laboratories
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In our eReader you can find the full English version of the book. Read The Methods of Textile Chemistry; Being the Syllabus of a Lecture Course Adapted for Use in Textile Laboratories Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Methods of Textile Chemistry; Being the Syllabus of a Lecture Course Adapted for Use in Textile Laboratories
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Remove the wool by boiling in 5% caustic soda.
If the sample be weighed before and after each operation the amount of each constituent may be determined. The final residue of cotton will in both cases be found to be somewhat below the actual percentage present, so that 4% should be added to the weight of the residue and sub- tracted from the weight of the wool.
Method II {von Remont). a. Weigh out 4 samples of the air-dry fabric of 2 grams each (weight a).
b. Boil 3 of the samples in a 3% solut...ion of hydrochloric acid, decant and repeat with a fresh solution of hydro- chloric acid. Size and coloring matter are hereby removed.
c. Rinse well in order to remove all the acid (residue b) .
d. Two of the samples obtained by the above opera- tion are placed for two minutes in a boiling solution of basic zinc chloride in order to dissolve silk.
e. Wash well with 1% hydrochloric acid and distilled water (residue d).
f. One of the two samples left after the above opera- tion is boiled for 15 minutes with 5% caustic soda in order to remove any wool.
What to read after The Methods of Textile Chemistry; Being the Syllabus of a Lecture Course Adapted for Use in Textile Laboratories?
You can find similar books in the "Read Also" column, or choose other free books by Frederic 1881 Dannerth to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Remove the wool by boiling in 5% caustic soda.
If the sample be weighed before and after each operation the amount of each constituent may be determined. The final residue of cotton will in both cases be found to be somewhat below the actual percentage present, so that 4% should be added to the weight of the residue and sub- tracted from the weight of the wool.
Method II {von Remont). a. Weigh out 4 samples of the air-dry fabric of 2 grams each (weight a).
b. Boil 3 of the samples in a 3% solut...ion of hydrochloric acid, decant and repeat with a fresh solution of hydro- chloric acid. Size and coloring matter are hereby removed.
c. Rinse well in order to remove all the acid (residue b) .
d. Two of the samples obtained by the above opera- tion are placed for two minutes in a boiling solution of basic zinc chloride in order to dissolve silk.
e. Wash well with 1% hydrochloric acid and distilled water (residue d).
f. One of the two samples left after the above opera- tion is boiled for 15 minutes with 5% caustic soda in order to remove any wool.
What to read after The Methods of Textile Chemistry; Being the Syllabus of a Lecture Course Adapted for Use in Textile Laboratories?
You can find similar books in the "Read Also" column, or choose other free books by Frederic 1881 Dannerth to read onlineMoreLess
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