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Device for preparing sodium hydrogen telluride and method for preparing sodium hydrogen telluride by using device

A technology of sodium tellurium hydride and a three-necked bottle, which is applied in the direction of chemical instruments and methods, selenium/tellurium compounds, and elemental compounds other than selenium/tellurium, which can solve the problems of slow reaction speed and easy oxidation of tellurium hydride, etc. Achieve the effects of avoiding oxidation, no need to cool down, and shortening the reaction time

Active Publication Date: 2018-05-04
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Device for preparing sodium hydrogen telluride and method for preparing sodium hydrogen telluride by using device
  • Device for preparing sodium hydrogen telluride and method for preparing sodium hydrogen telluride by using device
  • Device for preparing sodium hydrogen telluride and method for preparing sodium hydrogen telluride by using 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

The invention discloses a device for preparing sodium hydrogen telluride and a method for preparing sodium hydrogen telluride by using the device, relates to a preparation device and a preparation method for the sodium hydrogen telluride and aims at solving the problem that a method for preparing the sodium hydrogen telluride has a slow reaction speed and easiness in being oxidized. The preparation device is formed by a first rubber plug with a hole, a second rubber plug with a hole, a rubber plug, a nitrogen conveying pipe, a first glass tube, a second glass tube, a magnetic stirrer rotor, athree-opening bottle, a beaker, a magnetic stirrer, a chemical tank and a rubber pipe. The preparation method comprises the steps of piling reaction chemicals in the chemical tank in the three-openingbottle, continuously inflating nitrogen into the three-opening bottle after oxygen is exhausted, inclining the three-opening bottle until the chemicals are all dissolved, straightening the three-opening bottle and reacting for 0.8 to 1h. In the preparation method disclosed by the invention, the high-purity nitrogen is inflated into to prevent a NaHTe solution from being oxidized, the inflated nitrogen also has a cooling effect, a reaction efficiency is improved, cooling in reaction is avoided, and the device required by reaction has a simple structure. The preparation device and the preparation method are suitable for sodium hydrogen telluride preparation.

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 Applications(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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