Caustic Soda Pellets (Analytical Use)

25th October 2018

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An image showing Caustic Soda Pellets (Analytical Use) in a 500g container

Why Buy Caustic Soda Pellets (Analytical Use) Online from UK Chemical Suppliers, ReAgent Chemicals?

We can supply caustic soda in pelleted form for analytical use in 500g containers and 25kg bags, with discounts available for bulk orders over 4 items. We also offer other options, including custom packaging and different grades. Contact us if you need any further information.

Caustic soda as a carbon dioxide absorbent

One of the main properties of caustic soda – also known as sodium hydroxide (NaOH) – is its ability to absorb carbon dioxide (CO2) from the air, which has become the basis for many carbon dioxide absorbents used both in the lab and in industrial settings. These devices rapidly and effectively absorb carbon dioxide and acid gases, and are popular in a variety of physiological and analytical studies.

How it works

Typically, these filters are made of caustic soda-coated silica, which gradually changes to white due to the formation of sodium carbonate (Na2CO3).

NaOH CO2 -> Na2CO3 H2O

In the late 90s, researchers suggested the use of the same principle applied in a large scale to remove CO2 from the atmosphere, but this approach remains a point of contention due to high costs. A second problem with this method involves the process of “causticization”, or the recovery of the initial caustic soda to continue the reaction. In this case, researchers are still trying to develop ways to remove chemical pollutants from the solution, in order to recover clean caustic soda.

Free technical advice

We offer free technical advice to answer all your questions. A member of our customer service team will be glad to help before, during and after your purchase. With over 30 years’ experience in the field, we’ve developed a wide range of products, as well as bespoke solutions, to cover all your needs. Contact us for further information.

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