SF double-layer glass reactor laboratory

SF double-layer glass reactor laboratoryThe expansion coefficient of high borosilicate glass is 3.3, with sodium oxide (Na)₂O)、 Boron oxide (B)₂O₃）Silicon dioxide (SiO)₂）A type of glass with basic components. The content of boron and silicon in this type of glass is relatively high, with boron content ranging from 12.5% to 13.5% and silicon content ranging from 78% to 80%. Therefore, this type of glass is called high borosilicate glass. Belonging to the Pyrex class of borosilicate glasses. Its characteristic is a small coefficient of thermal expansion, and it is not easy to explode under sudden temperature changes at high temperatures; Acid resistant, alkali resistant, water-resistant, corrosion-resistant, with good thermal stability, chemical stability, and electrical properties, it has the characteristics of chemical resistance, thermal shock resistance, good mechanical properties, high operating temperature, high hardness, etc. Therefore, it is also known as heat-resistant glass, heat-resistant impact glass, high-temperature resistant glass, and is also a special fire-resistant glass.

SF double-layer glass reactor laboratoryThe main parameters are as follows:

1. Pressure resistance test: Conduct a water pressure test on connecting fittings such as "glass pipeline straight pipes" or "elbows" with a diameter of 2 inches or less. When pressurized to 20kg/cm2, there should be no damage. In order to maintain sufficient safety factor, the pressure used should not exceed 4kg/cm2.

2. Reactors, condensers, and some thin-walled products should not use a pressure greater than 2kg/cm2 in order to maintain sufficient safety factors. 2. Water resistance performance: Take particles from glass powder samples with a diameter of 0.3-0.5mm, boil them in distilled water for 1 hour, and measure the precipitation amount of Na2O. The amount of Na2O per gram of sample should not exceed 0.003mg.

3. Acid resistance: Boil the glass sample in hydrochloric acid with a content of 20.4% for 3 hours to measure its weight loss, which should not exceed 0.7mg per 100cm2 of surface area.

4. Alkali resistance: Boil the glass sample in a mixed solution of 1 equivalent concentration of NaOH and 1 equivalent concentration of Na2CO3 for three hours, measure its weight loss, and calculate it as no more than 90mg per 100cm2 of surface area
5. Melting temperature: 1680℃, molding temperature:1260℃，Softening temperature: 830℃，Annealing temperature: 560℃

concerningSF double-layer glass reactor laboratoryTechnical parameters:

1. The reaction vessel is designed with a double-layer structure and is made of GG17 high borosilicate glass material. The middle jacket can be filled with hot solvent for high-temperature reaction (the highest temperature can reach 315 ° C)℃The solvent is generally used with a kinematic viscosity of100； The flash point is 320℃Dimethyl silicone oil,）The middle jacket can also be filled with cold solvent for low-temperature constant temperature reaction,The high borosilicate glass produced by our factory has been experimentally proven to accept large temperature differences. The design of the interlayer has good insulation effect and is a good choice for conducting constant temperature reactions.
2. The stirring speed is adjustable between 0-680r/min, with a digital display of the speed for easy observation of the reaction of the material. Thus adjusting the stirring speed

3. The GG17 high borosilicate glass used has a thickness of 7mm. All openings are standard lip flanges

4. The complete set of reaction kettle has functions of stirring, distillation, and reflux; It can perform reactions under vacuum, distillation, and reflux

High temperature reaction deviceThe outlet is connected to the bottom of the reactor, and the reflux on top is connected to the bottom opening Generally, the solvent is heated to the desired temperature before opening the external circulation pump for constant temperature circulation
Advantages:

1. Variable frequency speed regulation and AC induction motor. By adjusting the frequency to achieve a constant speed, without brushes or sparks, the speed can be adjusted more safely and stably than by adjusting the current and voltage. It can work continuously.

2. The entire set of glassware is produced using GG17 high borosilicate glass, which has excellent chemical and physical properties. And the annealing temperature should be well controlled, so that the glass is not prone to cracking during use due to some technical deficiencies

3. The interface of the glass interlayer can be heated by circulating hot oil, and low-temperature reaction can be carried out by passing frozen liquid.

4. It can react at room temperature and quickly dissipate the reflected heat with tap water.

5. The material outlet is equipped with a flange and a PTFE valve, and the container is detachable for easy discharge of solid materials.

6. Six port reactor cover, with a large port design for easy cleaning, and standard port sockets for optional assembly of reflux and distillation synthesis devices.

7. The most important thing is the PTFE sealing plug designed by our company, which has a very good sealing effect. It uses oil seals, bearings, and encrypted sealing rings, and is fastened with PTFE material. This way, in long-term use, there will be no wear or poor sealing due to continuous mixing

fivePacking list for double-layer glass reactor