Outlines of Industrial Chemistry a Text book for Students
Outlines of Industrial Chemistry a Text book for Students
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In our eReader you can find the full English version of the book. Read Outlines of Industrial Chemistry a Text book for Students 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 Outlines of Industrial Chemistry a Text book for Students
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All processes for making ferrous sulphate yield dilute solutions, which are best evaporated by direct application of heat to the sur- face of the liquid (see 6, p. 4), thus preventing oxidation. After clarification, the liquid is put into large lead-lined tanks, in which strings or wooden rods are suspended; on these the large bluish green crystals of ferrous sulphate form.
The crystals contain 7 molecules of crystal water ; when heated to 140 C. , 6 molecules of water are expelled, but the las...t molecule is not removed until the temperature reaches 260 C. ; at this temper- ature, some of the acid begins to escape, and the formation of the basic salt begins. At a red heat, sulphuric anhydride is given off, and ferric oxide is left.
The crystals of ferrous sulphate effloresce quickly when exposed to the air, their surfaces becoming coated with a brownish white powder of basic ferric sulphate, formed by oxidation. Ultimately, the entire crystal is converted to this basic salt. By adding alcohol to a ferrous sulphate solution, the salt is precipitated in fine crys- tals, which are much more stable in the air than are the ordinary kind.
What to read after Outlines of Industrial Chemistry a Text book for Students?
You can find similar books in the "Read Also" column, or choose other free books by Frank Hall Thorp to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
All processes for making ferrous sulphate yield dilute solutions, which are best evaporated by direct application of heat to the sur- face of the liquid (see 6, p. 4), thus preventing oxidation. After clarification, the liquid is put into large lead-lined tanks, in which strings or wooden rods are suspended; on these the large bluish green crystals of ferrous sulphate form.
The crystals contain 7 molecules of crystal water ; when heated to 140 C. , 6 molecules of water are expelled, but the las...t molecule is not removed until the temperature reaches 260 C. ; at this temper- ature, some of the acid begins to escape, and the formation of the basic salt begins. At a red heat, sulphuric anhydride is given off, and ferric oxide is left.
The crystals of ferrous sulphate effloresce quickly when exposed to the air, their surfaces becoming coated with a brownish white powder of basic ferric sulphate, formed by oxidation. Ultimately, the entire crystal is converted to this basic salt. By adding alcohol to a ferrous sulphate solution, the salt is precipitated in fine crys- tals, which are much more stable in the air than are the ordinary kind.
What to read after Outlines of Industrial Chemistry a Text book for Students?
You can find similar books in the "Read Also" column, or choose other free books by Frank Hall Thorp to read onlineMoreLess
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