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A device for preparing sodium telluride hydride and a method for preparing sodium telluride hydride using the device

A technology of sodium tellurium hydride and three-necked flask is applied in chemical instruments and methods, selenium/tellurium compounds, elemental compounds other than selenium/tellurium, etc., and can solve the problems of slow reaction speed and easy oxidation of sodium tellurium hydride, etc. Achieve the effect of avoiding oxidation, no cooling treatment, and shortening the reaction time

Active Publication Date: 2021-02-02
HEILONGJIANG UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention proposes a device for preparing sodium telluride hydride and a method for preparing sodium telluride hydride using the device in order to solve the problems that the existing method for preparing sodium telluride hydride has a slow reaction speed and the prepared sodium hydride is easily oxidized

Method used

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  • A device for preparing sodium telluride hydride and a method for preparing sodium telluride hydride using the device
  • A device for preparing sodium telluride hydride and a method for preparing sodium telluride hydride using the device

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specific Embodiment approach 1

[0034] Specific implementation mode one: combine figure 1 Describe this embodiment, the device for preparing sodium telluride hydride in this embodiment consists of a first rubber plug with holes 1, a second rubber plug with holes 2, a rubber plug 3, a nitrogen delivery pipe 4, a first glass tube 5-1, a second Glass tube 5-2, magnetic stirrer rotor 6, three-necked bottle 7, beaker 8, magnetic stirrer 9, drug tank 11 and rubber hose 12;

[0035] The there-necked bottle 7 is placed on the magnetic stirrer 9, the magnetic stirrer rotor 6 is arranged inside the there-necked bottle 7, the beaker 8 is arranged on one side of the magnetic stirrer 9, and the bottle mouth in the middle of the there-necked bottle 7 is provided with a second belt hole. Rubber plug 2, one end of the first glass tube 5-1 passes through the second rubber plug with holes 2 and protrudes to the lower end surface of the second rubber plug with holes 2 by 1-2 cm, and the other end of the first glass tube 5-1 is...

specific Embodiment approach 2

[0042] Specific embodiment two: In this embodiment, the method for preparing sodium telluride hydride using a device for preparing sodium telluride hydride is carried out in the following steps:

[0043] Step 1: Add deionized water inside the three-necked bottle 7 until the liquid level of the deionized water is higher than the nitrogen outlet end of the nitrogen delivery pipe 4 and lower than the drug tank 11, and add silicone oil in the beaker 8 until the liquid level of the silicone oil is higher than the second The lower end nozzle of glass tube 5-2 is stacked with reaction medicine in medicine tank 11;

[0044] The reaction medicines are Te powder and NaBH 4 ;

[0045] Step 2: Evacuate the device with oxygen

[0046] Pass nitrogen gas into the three-necked bottle 7 through the nitrogen delivery pipe 4 for 4-6 minutes, then continue to pass nitrogen gas into the three-necked bottle 7 and perform magnetic stirring for 9-11 minutes;

[0047] Step 3: Preparation of Sodium ...

specific Embodiment approach 3

[0053] Specific embodiment three: the difference between this embodiment and specific embodiment two is: Te powder and NaBH described in step one 4 The mass ratio is 25:18. Other steps and parameters are the same as in the second embodiment.

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Abstract

A device for preparing sodium telluride hydride and a method for preparing sodium telluride hydride using the device relate to a preparation device and method for sodium telluride hydride. The purpose is to solve the problems of slow reaction speed and easy oxidation in the method for preparing sodium telluride hydride. The preparation device consists of a first rubber stopper with holes, a second rubber stopper with holes, a rubber stopper, a nitrogen delivery tube, a first glass tube, a second glass tube, a magnetic stirrer rotor, a three-necked flask, a beaker, a magnetic stirrer, and a drug tank and hose composition. Preparation method: stack the reaction medicine in the medicine tank in the three-necked bottle, continue to feed nitrogen into the three-necked bottle after the oxygen is emptied, tilt the three-necked bottle until the medicine is completely dissolved, and then place the three-necked bottle to react for 0.8 to 1 hour. The introduction of high-purity nitrogen in the preparation method of the present invention can prevent the NaHTe solution from being oxidized, and the nitrogen introduced can also reduce the temperature, which is beneficial to improve the reaction efficiency, the reaction does not need to be cooled, and the structure of the device required for the reaction is simple. The invention is applicable to the preparation of sodium telluride hydride.

Description

technical field [0001] The invention relates to a device and a preparation method for preparing sodium telluride hydride. Background technique [0002] The traditional method for preparing sodium telluride hydride is: put a small flask of reaction medicine, then seal the small flask with a rubber stopper and realize the discharge of hydrogen by inserting a needle on the rubber stopper; Place the small flask in the ice-water mixture and keep stirring the ice-water mixture; the reaction in the ice-water mixture lowers the reaction temperature, thus resulting in a greatly reduced reaction rate, which requires 10 hours of reaction in the ice-water mixture to complete the sodium hydride telluride and this method can't discharge the air in the bottle, and the reaction for a long time has given the oxygen in the air enough time to oxidize the product, causing the sodium telluride hydride generated to be oxidized. Contents of the invention [0003] In order to solve the problems ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B19/00B01J19/18B01F13/08
CPCB01J19/18C01B19/002B01F33/452
Inventor 常青檀恒宇隋净蓉
Owner HEILONGJIANG UNIV
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