Archive image from page 148 of Dairy chemistry; a practical handbook. Dairy chemistry; a practical handbook for dairy chemists and others having control of dairies dairychemistryp00rich Year: 1920 AUTOMATIC BURETTE. Automatic measuring ap- paratus and burettes may be also used for measuring the acid and amy I alcohol. The author has devised a burette specially for the measurement of sulphuric acid and other corrosive liquids. It has been found, in practice, that ordinary, burettes are liable to be filled to overflowing, and that considerable incon- venience is caused by spilling strong sulph
Archive image from page 148 of Dairy chemistry; a practical handbook. Dairy chemistry; a practical handbook for dairy chemists and others having control of dairies dairychemistryp00rich Year: 1920 AUTOMATIC BURETTE. Automatic measuring ap- paratus and burettes may be also used for measuring the acid and amy I alcohol. The author has devised a burette specially for the measurement of sulphuric acid and other corrosive liquids. It has been found, in practice, that ordinary, burettes are liable to be filled to overflowing, and that considerable incon- venience is caused by spilling strong sulphuric acid. An ordinary burette with a three-way tap is used, and to the tube, for filling from the bottom, a wider tube, h inch in diameter and 3 inches long, is fused. An india-rubber cork is inserted in this, and through it is passed a long glass tube bent as a syphon, which serves to convey the acid from a stock bottle above. In the top of the burette an india-rubber cork is fixed, through which passes a tube going almost to the top of an air chamber of glass; to the bottom of the air chamber a glass tube of small bore passes upwards so far as just to enter into the stock bottle. The illustration (Fig. 15) will make the construction clear. The conditions necessary for satisfactory working are :— 1. The capacity of air chamber and tube leading Fig. 15.—Automatic Burette.
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