𝔖 Bobbio Scriptorium
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Starches and starch fractions. Part II. The determination of starch by hydrolysis with hydrochloric acid

✍ Scribed by Lampitt, L. H. ;Fuller, C. H. F. ;Goldenberg, N.

Publisher
Wiley (John Wiley & Sons)
Year
1947
Weight
615 KB
Volume
66
Category
Article
ISSN
0368-4075

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✦ Synopsis

which had to be taken was to discontinue the addition of bromine if, for some reason or other, the stirrer failed to work. (Accumulation of free bromine in the vessel is dangerous as it might react suddenly with great violence,)

The mixture of sulphuric acid and hydrobromic acids was converted into calcium bromide by neutralisation with slaked lime.

The solution of calcium bromide obtained was evaporated until a concentration of about 75y0 was reached. Such a solution solidifies on cooling. A typical analysis of the final product was as follows :

CaBr, 76y0b.w. ; CaO 0.039y0 ; Fe 0 . 0 1 3 ~~ ; S", SO.,, BrO', absent; Chloride ion 0.3% (calculated as calcium chloride).

The product was used for the manufacture of bromine salts for pharmaceutical purposes.

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