Reaction vessels – find manufacturers and suppliers

Reaction vessels are central tools used in any chemical or biochemical laboratory work to carry out, control and observe chemical reactions.

There are a large number of different reaction vessels, which differ in their shape, material and area of application.

Below you will find the functionality and types of reaction vessels and their use, as well as an overview of factors influencing their selection and an overview of additional functions and accessories:

How reaction vessels work:

A reaction vessel is used to safely bring reactants together, allow controlled reactions to take place and isolate or further process the product. The vessels must meet certain requirements, such as chemical resistance, mechanical stability, temperature and pressure resistance. Depending on the type of reaction, the possibility of temperature control, stirring, pressure build-up or gas development can also be decisive.

Types of reaction vessels and their use:

1. Beaker (beaker):
   Beakers are cylindrical glass vessels with a spout that are primarily used for simple open-system reactions.
   They are ideal for mixing, heating and transferring liquids, but are only suitable for precise or sensitive reactions to a limited extent as they do not have a seal.
2. Erlenmeyer flasks:
   These flasks have a conical shape and a narrow opening. They allow easy swirling and mixing of the contents without liquids splashing over the rim.
   They are often used for titrations, crystallizations or as a reaction vessel for gas-developing reactions, often with a stopper or attachment.
3. Round bottom flasks:
   Round bottom flasks are spherical vessels with one or more necks. They are ideal for uniform heating, as the heat is well distributed due to the round shape. They are widely used in organic synthesis and are well suited for reactions with reflux condenser, under inert gas or vacuum.
4. Pressure reactors (autoclaves):
   Closed pressure vessels made of steel or special glass are used for reactions under high pressure, e.g. hydrogenations.
   These vessels are particularly robust and often equipped with safety valves, sensors and temperature control.
5. Plastic reaction vessels:
   These are mainly used in biochemistry and molecular biology research (e.g. Eppendorf vessels). They are suitable for small volumes and are usually disposable products. Their chemical resistance is limited, but they are well suited for centrifugation and storage of biological samples.
6. Crystallization dishes:
   These flat, dish-shaped vessels made of glass are used for the slow evaporation of solvents, allowing dissolved substances to crystallize. They are used in inorganic chemistry and preparative chemistry.
7. Dropping funnels and separating funnels:
   Although they are primarily used for dosing or phase separation, they can also function temporarily as reaction vessels, for example when adding a reagent dropwise, which reacts immediately.
8. Microwave reactors:
   Modern reaction vessels for chemical syntheses under microwave irradiation enable fast, clean reactions under pressure and temperature control. They are made of special temperature and pressure-resistant material.
9. Pressure reactors (autoclaves):
   Closed pressure vessels made of steel or special glass are used for reactions under high pressure, e.g. hydrogenation.
   These vessels are particularly robust and are often equipped with safety valves, sensors and temperature control.

Factors influencing the choice of reaction vessels:

The selection of a suitable reaction vessel depends on various factors.

• Type of reaction (exothermic, endothermic, gas-generating)
• Sensitivity to air or moisture
• Required temperature or pressure range
• Volume of the reaction mixture
• Required stirring or heating technology
• Material compatibility of the reagents with glass, metal or plastic

Additional functions and accessories of reaction vessels:

Many reaction vessels can be equipped with accessories such as reflux coolers, stirrers, temperature probes, inert gas supply or vacuum connections.
This improves control over reaction conditions, particularly in synthetic chemistry.

The choice of reaction vessels is crucial for reaction success and safety. The spectrum ranges from simple beakers to highly specialized pressure reactors - each variant has its specific advantages and areas of application. A thorough understanding of the properties and functions of these vessels is therefore essential for anyone working with chemical reactions.

Below you will find an overview of the most important criteria that you should pay attention to when purchasing reaction vessels:

When purchasing reaction vessels, whether for a research laboratory, an industrial production facility or an educational institution, numerous criteria play a role. A well-considered purchase not only ensures the safety and quality of the reactions, but also efficiency, durability and cost control.

• The choice of material is central to chemical resistance, process reliability and practicality:
• Borosilicate glass is standard in chemistry as it is heat resistant, chemically inert and transparent. It is suitable for most reactions, especially where visual control is required.
• Quartz glass offers higher temperature resistance and UV permeability, but is more expensive.
• Plastics such as polypropylene (PP), polyethylene (PE) or PTFE (Teflon) are ideal for biological applications or working with aggressive chemicals (e.g. hydrofluoric acid). However, they are often not resistant to temperature or solvents.
• Metals such as stainless steel and Hastelloy are used for high-pressure and special reactions, for example in chemical process engineering or catalysis research.
• Reaction vessels must be able to withstand the conditions of the planned applications:
• High heat resistance is essential for high-temperature reactions.
• For vacuum or overpressure conditions, thick-walled vessels or special pressure reactors are required.
• Pressure-safe autoclaves must be tested in accordance with standards, e.g. DIN or ASME.
• In terms of volume, you should not only consider current requirements, but also future scaling requirements:
• Small-volume vessels (milliliter range) for screening and analysis.
• Medium-sized vessels (100 ml to 5 L) for synthesis and development.
• Large-volume reactors, 10 L to several hundred liters, for scale-up or production.
• It is important that vessels can be combined with suitable accessories, e.g. stirrers, temperature control systems.
• Professional reaction vessels should be compatible with:
• Stirrers e.g. magnetic stirrers, mechanical stirrers
• Heating systems such as oil baths or heating jackets.
• Cooling systems such as reflux coolers and double jacket vessels.
• Measurement and control technology, e.g. temperature sensors or pH electrodes.
• Vacuum and inert gas systems.
• A standardized ground joint, e.g. standard ground joint NS 29/32, facilitates modular use.
• In professional environments, reusability and easy cleaning are crucial:
• Smooth surfaces without hard-to-reach corners make cleaning easier.
• Autoclavability is a must in biological and medical laboratories.
• For metal reactors, the interior should be coated or polished to minimize build-up.
• Safety features include:
• Pressure relief devices for closed reactors.
• Shatter resistance or shatter protection for glass vessels.
• Ex-certified components for working with flammable solvents.
• Temperature and pressure sensors for real-time monitoring.
• Pay attention to internationally recognized quality and safety standards, such as:
• ISO standards for laboratory glassware.
• ASTM standards for reactor assemblies.
• CE marking for electrical components.
• GMP or GLP conformity for pharmaceutical use.
• Professional laboratories prefer reaction systems that are flexible and expandable:
• Interchangeable attachments, lids and sensors
• Can be combined with automated sampling or temperature control
• Can be integrated into networked systems or process control technology
• The price should be in proportion to the service life, functionality and requirements:
• Investments in high-quality, long-lasting systems often pay off.
• Consumables (e.g. seals, glass stoppers) should be easy and inexpensive to replace.
• For frequently changing applications, a universal, modular system can be worthwhile instead of buying many specialized individual vessels.

The purchase of reaction vessels is much more than a question of price - it is a strategic decision. Careful selection contributes significantly to the efficiency, safety and reproducibility of chemical processes. Those who know the specific requirements of their own applications precisely and make targeted plans can work successfully in the long term with well thought-out investments.

Reaction vessels can be purchased from various suppliers. Comprehensive information about manufacturers and suppliers of Reaction vessels from all over the world can be found on Exportpages.