White Spirit vs. Turps Substitute: Understanding the Chemical Differences

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In summary, White spirit and turps substitute are both hydrocarbon distillate fractions used as solvents in paint. However, mineral turps is heavier and has a higher percentage of aromatic content compared to white spirit, which is primarily aliphatic. Turps substitute is not directly mentioned in the paint chemistry book, but it is likely similar to mineral turps in composition. The two may be priced the same in stores, but they serve different purposes in paint.
  • #1
Studiot
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Can anyone explain the (chemical) difference between white spirit and turps substitute please?
 
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  • #2
They're both hydrocarbon distillate fractions but mineral turps is heavier. White spirit is hydrocarbons in the C7 to C12 range. Mineral turps is C9-C16.
 
  • #3
Thank you for the reply.

My paint chemistry book gives white spirit as being largely aliphatic with about 10 - 15% aromatic content.

Of course real turpentine is an aromatic mixture.

Unfortunately the book does not mention turps substitute. Would this be the same as what you have called mineral turps?

My reason for asking was that I was in the shop the other day looking at the paint shelves, one with a row of white spirit and one with a row of turps substitute, both priced the same and I wondered what was the point of have two?
 

Related to White Spirit vs. Turps Substitute: Understanding the Chemical Differences

1. What is the difference between White Spirit and Turps Substitute?

The main difference between White Spirit and Turps Substitute is that White Spirit is a petroleum-based solvent, while Turps Substitute is a mineral-based solvent. This means that White Spirit is derived from crude oil, while Turps Substitute is derived from minerals such as petroleum or natural gas. Additionally, White Spirit has a higher flash point, making it less flammable than Turps Substitute.

2. Can White Spirit and Turps Substitute be used interchangeably?

While both solvents are commonly used in painting and DIY projects, they are not always interchangeable. White Spirit is better for dissolving oil-based paints and varnishes, while Turps Substitute is better for thinning and cleaning up water-based paints. It is important to consult the product labels and use the appropriate solvent for your specific project.

3. Are there any health hazards associated with White Spirit and Turps Substitute?

Both White Spirit and Turps Substitute can be harmful if ingested or inhaled in large amounts. They can also irritate the skin and eyes, so it is important to use these solvents in a well-ventilated area and wear protective gear such as gloves and goggles. It is also important to dispose of any used solvents properly to avoid environmental contamination.

4. Which solvent is more environmentally friendly?

In terms of environmental impact, Turps Substitute is generally considered to be more environmentally friendly than White Spirit. This is because Turps Substitute is derived from natural minerals and has a lower toxicity level. However, both solvents should be used and disposed of carefully to minimize their impact on the environment.

5. Can White Spirit and Turps Substitute be used for cleaning brushes?

Yes, both White Spirit and Turps Substitute can be used for cleaning brushes. However, White Spirit is better for cleaning oil-based paints, while Turps Substitute is better for cleaning water-based paints. It is important to thoroughly clean and rinse brushes after using either solvent to prevent any residue from affecting future projects.

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