Mya 4 Reaction Station FAQs

The block temperature range of Mya 4 Reaction Station is -30 to +180 ⁰C.

In terms of reaction or process temperature, typically you should achieve temperatures down to at least -20 ⁰C, and up to +150 ⁰C or more.

No, you do not need a thermoregulator for your Mya 4.

The heating of Mya 4 heating is achieved using heating cartridges in all four zones. This provides fast and precise heating.

The active cooling is provided by Peltier technology and a cooled water supply is required for the heat exchanger.

Recommended Supply:

Coolant Supply Mains water or ethylene glycol mix (max 30%)

Max. coolant temperature 15 °C (up to 35 °C, however performance will be affected)

Min. coolant temperature 5 °C

Max. flow rate 5 L/min

Min. flow rate 2 L/min

Max. coolant pressure 2 bar

Min. coolant pressure 0.3 bar

If using a thermoregulator (both specs below required):
Min. cooling power at 15 °C 1.5 kW
Min. cooling power at 0 °C 1.0 kW

A flow of inert or dry gas (nitrogen, argon, dry compressed air) is essential to protect the internal components of Mya 4 from ambient hazardous or corrosive gases and vapours, as well as condensation of atmospheric moisture.

Purge gas
Max flow rate 15 L/min
Min flow rate 3 L/min

You can control/record the temperature using the block temperature, with internal temperature probes located within each of the zones.

For added accuracy you can also control your temperature by adding external temperature probes for your Mya Insert for vials or your reaction mixtures. The block temperatures will still be recorded.

Click here to watch a video with more information.

Mya 4 comes with built-in magnetic stirring in all four zones. You can also add optional overhead stirring if required.

The Mya 4 compact stirrers provide powerful stirring, with a high-torque motor. They can easily handle viscous materials.

Mya Compact Stirrer – technical specifications:

Maximum Speed (intermittent) 1000 rpm

Maximum Speed (continuous) 500 rpm

Minimum Speed 100 rpm

Resolution 1 rpm

Torque 16 N·cm

Viscosity (max) 60000 mPa·s

You can use your own tubes and vials: including HPLC vials, scintillation vials, microwave tubes for sealed reactions and more. All you need is the right aluminium insert (based on the external diameter and depth of the tube/vial).

However, for round bottom flasks and process vessels, these are specific to Radleys and have been manufactured for optimal heat transfer as well as height tolerance.

Our process vessels have been designed exclusively for Mya 4. These have straight sides, to mimic reactors on a small scale. These vessels range from 50 ml to 400 ml.

You can use our process vessels up to 400 ml in size. The 400 ml vessel does not require an insert, it fits directly into the Mya 4.

Note: for optimum temperature control we recommend that the working volume of the vessels is kept to 50% of the vessel size.

Our Mya process reaction vessels are designed to allow you to reflux for long periods of time with minimal solvent loss but also to hold a vacuum, down to 10 mbar.

Yes, you can use vacuum.

However, please follow the instructions below depending on your needs to avoid solvents entering the reflux or manifold head (as this would damage the head over time).

For purging a reaction and replace air with an inert gas:
As vacuum will only be applied for a couple of seconds, this can be done through the manifold or reflux head. By connecting a 3-way valve to the gas inlet at the back of the head, you will able to switch between vacuum and gas. Please make sure any other positions on the head are closed.

To apply a continuous vacuum to a vessel:
To pull a continuous vacuum, we would recommend either a vessel with a sidearm or a multi neck lid is used, and the vacuum pulled through there.

A wide range of PTFE Magnetic Stirring Bars and PTFE Stirrer Shafts are available. We do have a list of compatible options for each vessel available.

In order to accommodate the various glassware options, you may need to attach a head to the Mya 4. Our three options are: the Manifold head, the Reflux head and the Support head.

Manifold head
If you need to use multi-neck lids, such as process-type vessels, then you will need the Manifold head. You can then have condensers attached to the head.

Distributes water for individual condensers

With non-return shut-off valves

Water-cooled

Distribute gas for inserting

Reflux head
The Reflux head would be for if you wanted to use short vials/tubes or glassware from the Carousel 6 Plus range with reflux tubes

Cools the outside of reflux tubes

Efficient refluxing in a simple set-up

Water-cooled

Distribute gas for inerting

Support head
The Support head is essentially a scaffold.

No water or gas distribution

Compatible with Findenser etc.

Your Mya 4 Reaction Station will come with its own Control Pad, supplied as standard with every unit. This is intuitive and easy to use, using a very small footprint.

Using the Control Pad, you can set automated profiles or use manual control. It allows for single or multi-user operation. You can quickly and easily control the heating, active cooling and stirring of each zone independently.

The Control Pad will control and record all data on temperature and stirring in your experiments.

Your Mya 4 Reaction Station will come with its own Control Pad, supplied as standard. However, for more complex experiments, or if you wanted to control and log external devices such as syringe pumps, peristaltic pumps or pH meters there is a PC software option.

With the software, you can integrate and control up to 16 x 3rd party devices such as pumps, balances and pH sensors and more. You can create complex experiments with any number of recipe steps, and even interlink devices and set feedback/control loops and end point conditions.

The PC software also has the time-saving feature of creating detailed reports in only a few clicks. The Report Wizard creates reports in rich text format, or you can choose to export your results in CSV.

You can try the software for yourself by downloading it here.

Most of the Carousel 6 Plus glassware is compatible with Mya 4, however, there are some exceptions: The smallest flasks, 5 ml (RR99151) and 10 ml (RR99148), the azeotropic flasks and the 170 ml flask cannot be used. The standard Carousel 12 Plus quick-thread glass reaction tubes (RR91080) can be used in Mya 4 – but they are not tall enough to be used for refluxing. A longer quick-thread glass reaction tube has been designed specially to be used with the Mya 4 reflux head. This 200 mm tube is RR40583. Other things to consider when using the Carousel 12 plus tubes is their height, this means that:

• They cannot be used with the reflux head in position – they clash
• If the manifold head is in position, you might only be able to fit 3 tubes into the insert