Heated Magnetic Stirrer Plate
(1)LCD/Double Knob/Timmer/Heating Plate
(2)Stirring Volume:5L
2. Large Capacity Magnetic Stirrer
(1)Double Knob/DC Brushless Motor/100~240V/5~40°C 80%RH
(2)Stirring Volume:10L/20L/50L
3. Multi Link Magnetic Stirrer:
(1)Double Knob/LCD/100~240V/100~1500RPM
(2)Stirring Volume:3*1/6*1/9*1
4. Mini Magnetic Stirrer:
(1)Miniature Brushless Motor/Stepless Speed Regulation/0~2000RPM/AC 220V 50Hz
(2)Stirring Volume:2L
5. Single Control Multi Connection Magnetic Stirrer:
(1)LED Digital/0~1600RPM/RT±5~99.9°C/220V 50/60Hz
(2)Stirring Volume:4*1/6*1
***Price List for whole above, inquire us to get
Description
Technical Parameters
Heated magnetic stirrer plate is a commonly used laboratory equipment, which combines two functions of heating and magnetic stirring, and can provide a stable heat source and uniform stirring for chemical reactions, solution preparation, etc.It is suitable for mixing and heating a wide range of materials, including chemical solutions, biological media, suspensions and colloids, as well as other liquid materials. When in use, it is necessary to pay attention to factors such as material compatibility, temperature control and stirring speed to ensure the accuracy and reliability of the experimental results.When using the heated magnetic stirrer plate for material mixing, it is necessary to pay attention to material preparation, container selection, installation and position adjustment of the magnetic mixer, mixing speed and time control, temperature control and safety measures, as well as observation and recording. These considerations help to ensure the accuracy and safety of the experiment.
Parameter
The difference between electromagnetic stirrer and heating magnetic stirrer
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◇ Electromagnetic stirrer
Advantage
High safety: Due to the magnetic drive, no mechanical parts are in direct contact with the solution during the mixing process, which avoids solution pollution and mechanical wear, and improves the safety of the experiment.
Mixing evenly: The magnetic stirrer can rotate freely in the solution to achieve a full range of uniform mixing and improve the experimental effect.
No noise: Compared with the mechanical stirrer, the electromagnetic stirrer is almost noiseless during operation, providing a quieter working environment for the experimental personnel.
Easy to clean: no mechanical parts come into contact with the container during mixing, so it is more convenient to clean.
Shortcoming
There is a limit to the viscosity of the liquid: the electromagnetic stirrer is more suitable for mixing liquids with low viscosity. For liquids with high viscosity or containing solid particles, the stirring effect may be poor.
Not suitable for magnetic field sensitive experiments: For some magnetic field sensitive experiments or materials, electromagnetic stirrers may have an effect, so special attention is required when using.
◇ Heated Magnetic Stirrer Plate
Advantage
Heating and stirring integration: set heating and stirring functions in one, can simultaneously meet the needs of temperature and stirring in the experiment, improve the efficiency of the experiment.
Temperature control: Most heating magnetic stirrers are equipped with a temperature control system, the user can precisely set and adjust the heating temperature to ensure the stability of the experimental conditions.
Strong adaptability: suitable for a variety of experimental scenarios and liquid types, can meet the needs of different experiments.
Safe and reliable: The equipment usually has an overheat protection function, when the heating plate temperature is too high, it will automatically power off to prevent the occurrence of accidents such as fire.
Shortcoming
Higher price: Compared with ordinary stirrers, the price of heated magnetic stirrers is usually higher, which may increase the cost of the experiment.
Long heating time: it takes a long time to go from the low temperature end to the constant temperature, and the power consumption in the heating process is large, which may affect the progress of the experiment.
There are requirements for stirrers: in high temperature environments, ordinary stirrers may not work properly, and it is necessary to use high-temperature stirrers.
Precautions for use
1. Before use, check whether the equipment is in good condition and ensure that the power plug and socket are in good contact.
2. Choose the appropriate mixer and container according to the experimental requirements, and ensure that the bottom of the container is smooth and free of scratches.
3. When setting the heating temperature, it should be reasonably set according to the experimental requirements and the properties of the solution to avoid the solution boiling or splashing due to excessive temperature.
4. During the mixing process, attention should be paid to the changes in the solution, and the mixing speed and heating temperature should be adjusted in time.
5. After the end of the experiment, the power should be turned off in time and the equipment should be cleaned to keep the equipment clean and dry.
Q&A-Solvent evaporation
The cause of solvent evaporation
Heat transfer
The heated magnetic stirring plate transfers heat to the container and solvent through thermal conduction, causing the solvent to rise in temperature and evaporate.
Friction heat generated by agitation
The magnetic stirrer will generate a certain frictional heat during the rotation process, which will also accelerate the evaporation of the solvent.
Container opening
The lack of seal at the container opening makes it easy for solvent vapor to escape from the container opening.
Improper operation
Improper operation during solvent addition or sampling may result in solvent spatter or excessive sampling, resulting in solvent reduction.
The consequences of solvent evaporation
Concentration change
The evaporation of solvent will increase the concentration of solute in the solution, which will affect the accuracy of the experimental results.
The experiment failed
In some experiments, excessive evaporation of the solvent may cause the experiment to fail or need to be repeated.
Security risks
Solvent evaporation may produce toxic or flammable vapors, posing a threat to the safety of laboratory personnel.
Methods to reduce solvent evaporation
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Control heating temperature:
Using a magnetic stirring plate with precise temperature control, the temperature is set within a safe range below the boiling point of the solvent.
Strengthen sealing:
Use high quality rubber seals or metal seals to strengthen the sealing performance of the container and prevent the escape of solvent vapor.
Reduce the mixing speed:
Reducing the stirring speed can reduce the friction heat and thus reduce the solvent evaporation rate.
Use covering materials:
Covering the container with a layer of covering materials, such as glass plates, aluminum foil, etc., can effectively prevent solvent evaporation.
Regular observation and replenishment of solvents:
The amount of solvent should be observed regularly during the experiment, and the solvent should be added in time as needed to ensure the accuracy of the experimental results.
Precautions for experiment
Safe operation:
When using the heating magnetic stirring plate, the operating procedures should be followed to ensure the safety of the experimental personnel.
Equipment maintenance:
Regular maintenance and maintenance of the magnetic mixing plate to extend its service life and ensure the normal conduct of the experiment.
Experimental record:
The key parameters of the experiment, such as heating temperature, stirring speed, solvent evaporation, etc., were recorded for subsequent analysis and summary.
Methods to avoid solvent evaporation
Controlled heating temperature
Precise temperature setting: A magnetic stirring plate with precise temperature control ensures that the heating temperature does not exceed the safe evaporation temperature of the solvent. It is usually effective to set the temperature within a safe range below the boiling point of the solvent.
Avoid overheating: Check and calibrate the temperature controller regularly to ensure that the heating temperature is stable and does not rise suddenly.
Strengthen the sealing of the container
Use a sealed container: Choose a container with a sealed lid to ensure that solvent vapor does not escape from the mouth of the container during heating.
High quality sealing rings: Use high quality rubber or metal sealing rings on the container lid or mixing plate to improve sealing performance.
Adjust the mixing speed
Appropriately reduce the stirring speed: too fast stirring speed will increase the evaporation rate of the solvent. Therefore, under the premise of not affecting the mixing effect, the appropriate reduction of the stirring speed can reduce the solvent evaporation.
Use covering materials
Glass plate or aluminum foil covering: Covering material such as glass plate or aluminum foil over the container can effectively prevent the escape of solvent vapor, while allowing observation of the mixing inside the container.
Check and supplement solvents regularly
Regular check: Check the amount of solvent regularly during the experiment, especially if the heating time is long or the temperature is high.
Timely addition of solvent: If the evaporation of solvent is found to be large, the solvent should be added in time to ensure the accuracy of the experimental results.
Other precautions
Avoid long-term continuous heating: intermittent use of heating magnetic stirring plate to avoid long-term continuous heating resulting in a large amount of solvent evaporation.
Keep the experimental environment ventilated: Although ventilation cannot directly reduce solvent evaporation, it helps to reduce the concentration of solvent vapor in the laboratory and reduce safety hazards.
Choose the right solvent: Choose a less volatile solvent according to the experimental requirements to reduce the possibility of solvent evaporation from the source.
About us
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A wide range of products: the company's products cover chemical chemicals, pharmaceutical intermediates, chemical reagents, chemical equipment and other fields, and the products are exported to the world, becoming a qualified supplier of many global giants, such as Saudi Aramco Oil Group, Detroit Institute of the United States, SANYO life-material (Japan), Merck (Germany) and so on.
Broad market demand: With the continuous development of the global chemical industry, as well as the rapid growth of medicine, new energy and other fields, the company's products have broad market demand and development space.
Management ability and team
Efficient management platform: The company has built a simple and efficient management platform, which can efficiently complete daily management and business, and improve work efficiency.
Professional team: The company has a professional technical team and sales team, they have rich experience and expertise in their respective fields, can provide customers with quality products and services.
Development prospects and plans
Rapid development period: After years of hard work, the company is currently in a period of rapid development, with strong development potential and market competitiveness.
Strategic planning: The company focuses on long-term development planning, is committed to continuous innovation and breakthrough in the field of chemical industry, and provides customers with better products and services.
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