Tin Oxide (SnO2) Stannic Oxide - Properties and Applications

Intrduction

Tin oxide (SnO2) is also known as stannic oxide. It can be found naturally as the mineral cassiterite.

It is typically a white to off-white and sometime grey crystalline solid.

Applications

Tin oxide is most commonly used in glazes where it acts as an opacifier where it is typically added in the range of 5-10%. When used correctly it will produce an opaque, glossy glaze.

If used in excess a dull/matt glaze can result. Potters have used tin oxide as an opacifier for hundreds of years.

The addition of larger amounts of tin oxide to lower temperature glazes can increase its refractoriness, i.e. the molten glaze will have an increased viscosity increasing the possibility of pinholing and crawling.

The use of tin oxide is diminishing, with many potters moving towards the use of zircon, which is a cheaper alternative.

However, twice as much zircon is required to produce the same degree of opacity when compared to tin oxide.

Key Properties

Property Value
Density (g/cm3) 6.90 - 7.00
Melting Point (°C) 1630

Primary author: AZoM.com

Comments

  1. chemist kannan chemist kannan India says:

    What is moleculer weight of SnO2, Sb2O3, Poly(vinyl chloride)?

  2. tanveer fatima tanveer fatima India says:

    paper on ppy+stannic oxide

  3. Kenneth Wilson Kenneth Wilson Canada says:

    Can you use tin oxide as gemstone refractometer r.i. fluid?

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of AZoM.com.

Ask A Question

Do you have a question you'd like to ask regarding this article?

Leave your feedback
Your comment type
Submit

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.