Immersion Oil

Immersion Oil



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Buy Immersion Oil Online from Leading UK Suppliers

ReAgent has been a leading UK chemical supplier for over 40 years. With accreditation to a number of ISO Standards, as well as a 100% quality guarantee on all of our products, we have the knowledge and experience to handle all of your business needs.

You can buy immersion oil from our online shop, where you can get nationwide next-day delivery and discounts on bulk orders. We also offer further options, including personalised labelling, customisable packaging and specific pack sizes. Simply contact us for further information.

How is Immersion Oil Used?

Immersion oils are used in light microscopy to increase the magnification power of lenses, as well as the overall resolution and numerical aperture of the final image.

In light microscopy, most microscope slides have a refractive index of around 1.5. In comparison, the refractive index of the air is 1.0. This incongruity means that the light that passes through the slides will be refracted and scattered through the air, and the rays will be lost to the final image.

Immersion oil, on the other hand, has an incredibly similar refractive index to glass at approximately 1.515. Therefore, by adding an immersion oil in the space that is usually filled with air, the refractive mismatch will be corrected.

Using immersion oil will direct more light through the objective because fewer rays will be refracted or scattered in the air. This will improve the resolution of the final image and increase the light-gathering properties of the optical components of the microscope (known as the numerical aperture).

Types of Immersion Oil

In general, there are two types of immersion oil that can be used in microscopy:

  • Cedar Wood Oil: this used to be the preferred product to use before synthetic alternatives became readily available. However, cedarwood oil is able to corrode parts of the microscope if it isn’t cleaned correctly. It can also absorb the ultraviolet and blue range of the light spectrum and turns yellow over time.
  • Synthetic Oils: modern day synthetic oils are specifically designed not to discolour over time. They are also relatively inert and are now the most widely manufactured immersion oils available

Order Yours Today

ReAgent is internationally recognised for our unrivalled quality and first-class customer service. With over 4 decades of industry experience, we are one of the leading UK chemical suppliers and are accredited to a number of ISO standards.

All of our products, including our immersion oil, are backed by a 100% quality guarantee – so you can buy with confidence knowing you’re in capable and trustworthy hands.

You can place your order online today, or contact us directly to get more information about what we can do for your business. A member of our customer service team will always be happy to support you before, during and even after your purchase.





MSDS Files

The following files are available to download:

Product IDProductpost_statusBulkDownload SDS File
3509Immersion Oilpublish2267 - 2267 - SDS10648.pdf

Please note: we only deliver to registered businesses at non-residential addresses with a minimum order value of €100.

Please notify us if you have specific delivery requirements such as restricted access, requirement for a tail-lift delivery vehicle or pallet truck. Failure to notify us of a special delivery instructions can incur additional charges from our carriers.