Posts tagged 'heating'

heating laboratory glass
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DWK safety tips and tricks - heating laboratory glass

Heating glassware is an important topic as heat can change the volume of the glassware if the temperature used is too high. The maximum temperature for heating the glass depends on the specifications and what type of glass is used. For example, borosilicate glassware provides a lower coefficient of expansion than other glass types such as soda lime glass. Another note is that not all glassware...
2Mag External Controllers and Stirrers
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2Mag External Controllers and Stirrers

2Mag have a wide range of magnetic stirrers, with some having an internal controller, and others requiring an external controller. The stirrers that require an external controller can be submersed in water baths, up to 95oC. These stirrers come with a single stirring point, or multiple stirring points. Picture of 2mag stirrers and controllers 2mag external controllers -MIXcontrol Ther...
Memmert WTB waterbath range
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Introducing the new Memmert WTB waterbath range

Memmert are world-known for producing robust, functional and reliable pieces of lab equipment. Whilst their main product portfolio lies with larger pieces such as ovens and test chambers they also manufacture water baths, produced to the same Memmert level of quality. Launching at the start of 2021, the WTB range replaces the older models WNB, WNE and WPE.  The WTB builds on past models, featur...
What type of hotplate do I need to make a sand bath?
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What type of hotplate do I need to make a sand bath?

Sand baths have been used in labs since the time of alchemists. Simply, a sand bath is made by placing a container on a heated surface and filling with sand. A vessel to be heated is then submerged into the sand which conducts the heat from the heated surface into the sides of the vessel. In modern labs, sand baths are still used and are typically set up using a hotplate or heating mantle on to...
Why should I use a temperature probe with a hotplate stirrer?
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Why should I use a temperature probe with a hotplate stirrer?

Some hotplates and hotplate stirrers have the ability for you to be able to connect an external temperature probe. The function of the external temperature probe is so that you can monitor and control the temperature of your heated sample. This is in contrast to simply controlling the hotplate surface temperature. [caption id="attachment_17321" align="aligncenter" width="300"] Camlab Choice ...
Which hotplate stirrer is the best for my application?
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Which hotplate stirrer is the best for my application?

A hotplate stirrer is used extensively in the lab and is ideal for mixing up and preparing solutions . The Camlab Choice range contains a selection of hotplate stirrers each combining value for money with a range of features. With five models available, you'll be sure to find something suitable for your application.  As an overview, the hotplate stirrers can be grouped according to their plate ...
Stirrers
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A Guide to Different Types of Stirrers

There are a variety of stirrers available for laboratory use, each having their own qualities which make them more suitable for certain applications than others. Below is an outline of the types of stirrers available and what they are more suitable for:   Magnetic Stirrers Magnetic stirrers use a rotating magnetic field to cause a stirrer bar (of flea), immersed within a l...

Double Walled Jacketed Duran Bottles
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Double walled jacketed Duran bottles for temperature control

The Duran Group has extended their range of wide mouth laboratory bottles by introducing two new double walled or jacketed bottles for temperature control of samples and experiments. [caption id="attachment_11619" align="aligncenter" width="253"] The new double walled GLS 80 bottles by The Duran Group[/caption] These GLS 80 bottles incorporate a jacket which can be used to circulated ...
Memmert Ovens
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What are the adjustable fan speed and air flaps used for in Memmert ovens?

In Memmert Fan assisted ovens (UF series) the fan speed and air flap positions can be adjusted - but what affect does this have on the system, and when would you use this feature? [caption id="attachment_7741" align="aligncenter" width="301"] The UF110 Memmert fan assisted laboratory oven[/caption] Fan - for temperature uniformity The fan inside fan assisted ovens helps to circulate th...
UN30 Lab Oven
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Should I choose a Natural or Fan Assisted Laboratory Oven?

Many laboratories use ovens to heat, dry, age, degas, cure or condition samples. Lab ovens are usually available as natural convection or fan assisted - we've taken a look at when you would choose each type to help you pick the right oven for the task. [caption id="attachment_10427" align="aligncenter" width="401"] A lab oven - but when would you choose natural convection, or fan convecti...
SMP10 melting point
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How do I prepare samples for melting point analysis?

Melting point tests provide a fast and simple method to verify the purity of solid samples in the lab after synthesis or in manufacturing as a quality control check. Preparing the samples correctly will ensure results are accurate and comparable. We've taken a look at the proper way to prepare samples for melting point analysis below. [caption id="attachment_10413" align="aligncenter" wid...
SBB Aqua Plus water baths
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How can I make sure my boiling water bath does not run dry?

Water baths are an excellent way to maintain samples at a set temperature, though when they are run at high temperatures or for long periods of time the water will of course evaporate. If the bath runs dry this will not only mean your samples are out of temperature, but it can also damage the bath. There are several things you can do to ensure this does not happen. [caption id="attachm...
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