SU385217A1 - DEVICE FOR RECORDING OF NUMBER OF OXYGEN - Google Patents

Description

I

A device is known for recording the amount of oxygen absorbed by a material during oxidation, equipped with an electric oxygen generator connected to a reaction flask, an electric pressure generator connected in series with an oxygen generator to a DC electric circuit, a self-recording pressure gauge, and a pressure blocker.

The known device has insufficient sensitivity (large division price), mainly due to the system’s too large volume generating pressure.

In order to increase the sensitivity in the proposed device, an electric pressure generator, in which an electrode is clamped in on an insulating gasket, is directly connected to a recording device with a manometer, the sensitive element of which is connected to the pressure interlock microswitch by a lever system.

The drawing shows the principal scheme of the proposed device.

The device consists of a thermostatically controlled bath / in which the reaction flask 2 is placed with an oil sample. A V-shaped oxygen generator 4 is connected to the reaction flask through reflux condenser 3, which is connected in series with pressure generator 5 into a constant-current circuit.

current. An electrode 7 made of stainless steel is mounted into the bottom of the pressure generator housing on an insulating (Teflon) conical gasket 6. The second electrode is the cup body. The electrolytic generator pressure 1H, and 5 is connected to the recording manometer 8.

To stop electrolysis at the end of the experiment (after the oil absorbs a given amount of oxygen), the device has a pressure lock, which consists of a microswitch connected by a system of levers to the self-manometer gauge bellows.

The device works as follows. A portion of the oil, poured into the conical flask with a thin layer, is placed in a thermostatted bath. The space above the oil is filled with oxygen. The oil, when oxidized, absorbs oxygen, which leads to a decrease in pressure in the reaction system. The latter results in an increase in the level of an aqueous solution of soda in one of the knees of a V-shaped electrolytic oxygen generator, the closure of its electrodes and the release of oxygen into the reaction space as a result of electrolysis. The recording of this amount of oxygen is produced by a recording manometer attached to a hermetic vessel (pressure generator). Since the electrodes of a sealed vessel are connected in series with an oxygen generator into an electric circuit of a direct current, the amount of the mixture of gases HZ and Oa released by electrolysis of the soda solution in the pressure generator is proportional to the amount of oxygen released by the B-oxygen generator.

Item from: bret

Device for recording the amount of oxygen absorbed by the material during oxidation, equipped with an electrolytic generator

oxygen connected to a reaction flask, an electrolytic pressure generator connected in series with an oxygen generator in an electrical circuit of a constant current, a self-tapping pressure gauge, and also a blockage; in order to increase the sensitivity of the instrument, an electrolytic generator pressure, which is mounted on

The electrode is connected to an isolating pad directly connected to the recorder (with a pressure gauge, sensitive, the element of which is connected with a pressure interlock by means of a lever system by means of a lever).