Toxicity in reactions between liquid paraffin and polyurethane/polyethylene

In summary, the conversation discusses the potential toxicity of using liquid paraffin in a polyurethane or polyethylene bladder. The individual is curious about whether the paraffin will dissolve the bladder and create compounds with higher toxicity. It is suggested that empirical methods be used to test the effects, as plastic items often contain additional compounds such as plasticizers and pigments that could be affected by the paraffin. Ultimately, conducting an experiment will provide more information about the potential toxicity.
  • #1
blakeud
1
0
Hello,
Would putting liquid paraffin (C[itex]_{n}[/itex]H[itex]_{2n + 2}[/itex]) in either a polyurethane or polyethylene bladder (such as a camelbak hydration bladder) create any compounds that have a higher toxicity than that of paraffin itself? I know that all petroleum distillates act as weak solvents and I'm curious as to whether paraffin will dissolve such a bladder (and if so, is it an issue?)

Thank you,
Blake
 
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  • #2
This is probably best answered by empirical methods. Typically plastic items are not made of pure polyethylene or polyurethane, but are compounded with plasticizers, pigments and fillers to strengthen and make items more flexible and thus useful.
Your liquid paraffin may leach these and change the item's strength (could become brittle); these plasticizers can be small molecules like BPA, which has its own issues... pigments can be heavy metal based (unless the item is food grade), or oil soluble dyes which may have toxicity. But the experiment will tell all.
 

Related to Toxicity in reactions between liquid paraffin and polyurethane/polyethylene

1. What is liquid paraffin and how is it used?

Liquid paraffin, also known as mineral oil, is a clear, odorless liquid derived from petroleum. It is commonly used as a lubricant, solvent, and protective agent in various industries, including cosmetics, pharmaceuticals, and food processing.

2. What are polyurethane and polyethylene, and why are they used together in reactions with liquid paraffin?

Polyurethane and polyethylene are both types of polymers, which are long chains of repeating molecules. They are used together in reactions with liquid paraffin because they have complementary properties, such as flexibility, durability, and water resistance, making them ideal for creating various products, such as coatings, adhesives, and sealants.

3. What are the potential risks of using liquid paraffin with polyurethane and polyethylene?

The main concern with using liquid paraffin in reactions with polyurethane and polyethylene is the potential for toxicity. Liquid paraffin is not easily metabolized by the body, so it can accumulate in tissues and cause adverse effects, such as skin irritation, organ damage, and even cancer. In addition, the reaction between liquid paraffin and polyurethane/polyethylene can release harmful chemicals, such as formaldehyde and toluene, which can also pose health risks.

4. What safety precautions should be taken when working with liquid paraffin and polyurethane/polyethylene?

To minimize the risks of toxicity, it is important to handle liquid paraffin and polyurethane/polyethylene in a well-ventilated area and wear appropriate protective gear, such as gloves, goggles, and a respirator. It is also crucial to follow proper storage, handling, and disposal guidelines for these chemicals.

5. Are there any alternatives to using liquid paraffin in reactions with polyurethane/polyethylene?

Yes, there are alternative substances that can be used instead of liquid paraffin in reactions with polyurethane/polyethylene. Some examples include plant-based oils, such as soybean oil or castor oil, which are biodegradable and less toxic. However, it is important to carefully evaluate the properties and potential risks of any alternative before using it in industrial processes.

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