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US 4,379,775 AGranted
Apparatus for thermochemical quantitative analysis
AssigneeVysoke udeni technicke
InventorsJiri Brandstetr, Josef Huleja, Josef Kupec
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AssigneeVysoke udeni technicke
InventorsJiri Brandstetr, Josef Huleja, Josef Kupec
Estimating the term…
A general-purpose apparatus for thermochemical quantitative analysis, operable upon the principle of measuring temperature variations accompanying chemical reactions between a solid and a liquid substance as well as between two solutions. An exchangeable reaction vessel made of formed polystro in Dewar vessel is received in a heat-insulated receptacle with a thermostat controlled bath, the reaction vessel being provided with a cover having an opening for a removable lid which supports a temperature sensor and a stirring rod. The removable lid has openings to receive a dose feeder for a solid specimen and/or a dose feeder for reagent solutions. Due to the equalizing of the temperature values of reagents, specimens to be analyzed, as well as the entire apparatus to a constant temperature in a thermostatically controlled bath, the apparatus according to the present invention makes it possible considerably to raise the degree of accuracy of thermochemical analysis, and to carry out a complex analysis of a single solid specimen in one solution.
An apparatus for thermochemical quantitative analysis, comprising a heat-insulated receptacle with a thermostatically controlled liquid bath, a removable part and a hinged part, the receptacle containing a Dewar vessel in which there is an exchangable reaction vessel, the receptacle further containing at least one stock bottle and at least one volumetric flask which are disposed below the hinged part of the lid and contain a solution to be analyzed and a reagent solution, respectively, the removable part of the lid which has the air-filled insulating space being retained by gravity above said reaction vessel and being provided with apertures for at least one liquid reagent dose feeder and a dose feeder for a solid sample.
Dependencies are inferred from the claim text.