Lance Carson
Polycarbonate is a type of plastic that is used in various products, including clear containers and lenses. When it comes to storing fragrance oils, the choice of container material is crucial to prevent damage and deterioration. While polycarbonate is chemically resistant to many substances, such as acids, greases, and certain hydrocarbons, it is important to understand its compatibility with fragrance oils. Fragrance oils, similar to essential oils, can be potent and require proper storage to maintain their quality and effectiveness. Understanding the interaction between polycarbonate and fragrance oils is essential to ensure the safety and integrity of the container and the oil itself.
| Characteristics | Values |
|---|---|
| Polycarbonate's resistance to fragrance oil | Polycarbonate is vulnerable to degradation, discolouration, and structural weakening when exposed to fragrance oil for a long time |
| Recommended use cases | Avoid prolonged exposure to fragrance oil. Test on a small area first to avoid unwanted damage |
| Alternative cleaning options | Use soap and water or specialised plastic cleaners instead of fragrance oil to maintain the integrity of polycarbonate items |
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What You'll Learn
Baby oil can scratch or discolour polycarbonate
Baby oil is primarily composed of mineral oil and fragrance, which can interact differently with various plastic types. Polycarbonate is one such plastic that is vulnerable to degradation and discolouration when exposed to baby oil. This is because baby oil can cause scratches or discolouration on polycarbonate surfaces, which are often clear containers and lenses.
To prevent scratches and discolouration, it is important to avoid prolonged exposure of baby oil on polycarbonate surfaces. Even a small scratch on a polycarbonate material can affect its aesthetics and create room for more damage. Therefore, it is recommended to always test baby oil on a small, inconspicuous area of the polycarbonate item before applying it to a larger area. This will help identify any adverse reactions and prevent unwanted damage.
If baby oil is to be used on polycarbonate, it is important to note that alternative cleaning options, such as soap and water or specialised plastic cleaners, are safer for maintaining the integrity of the plastic. These cleaning options can also be used to remove oil or grease from polycarbonate surfaces. When using soap and water, it is important to use mild soap and gently rub the surface with a soft cloth dampened in water. Avoiding abrasive cleaning agents is crucial, as they can scratch or haze the material.
In summary, baby oil can scratch or discolour polycarbonate surfaces due to its interaction with the plastic. To safely use and maintain polycarbonate items, it is important to understand their durability and avoid prolonged exposure to baby oil. Testing on a small area and using alternative cleaning options are recommended to protect polycarbonate items from potential damage.
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Polycarbonate is chemically resistant to many oils
Polycarbonate is a material that is chemically resistant to many oils and other substances. Its chemical resistance describes its ability to maintain mechanical integrity while being exposed to specific chemical environments. It is important to note that temperature, chemical concentration, state of mechanical stress, and duration of exposure are critical variables that can influence the performance of polycarbonate in a given situation.
Polycarbonate exhibits excellent resistance to a wide range of chemicals, including acids, oxidizing and reducing agents, neutral and acidic salt solutions, greases, oils, detergents, and various hydrocarbons. Its compatibility with oils and other substances makes it a versatile material for a variety of applications.
However, it is important to understand that polycarbonate is not compatible with all substances. For example, it should not be exposed to methyl alcohol, acetone, ketones, ethers, or aromatic hydrocarbons. These substances can degrade the polycarbonate material and affect its performance.
While polycarbonate is resistant to many oils, it is important to note that not all oils are the same. For instance, when it comes to baby oil, primarily made of mineral oil and fragrance, polycarbonate exhibits varying degrees of resistance. Prolonged exposure to baby oil can lead to discoloration, scratching, and even structural weakening of polycarbonate surfaces. Therefore, it is always recommended to test any oil on a small, inconspicuous area of the polycarbonate surface before full application to ensure compatibility and avoid potential damage.
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Pure essential oils should not be stored in plastic
Pure essential oils are highly concentrated and potent, with their own aromatic and medicinal properties. They need to be stored in containers that are not only airtight but also protect the oil from sunlight and heat.
While plastic bottles are convenient for storing essential oils, there are potential issues to consider. Firstly, essential oils can dissolve certain types of plastic over time, causing leaks and contaminating the oil. For example, polystyrene is easily dissolved by d-limonene in lemon oil, which disrupts the van der Waals forces, causing the polystyrene chains to break apart. Citrus oils can also cause oxidation when stored in plastic, altering the chemical composition of the oil, reducing its effectiveness, and potentially making it a skin irritant.
Additionally, essential oils are sensitive to light, and plastic may not offer sufficient protection against UV rays. Prolonged exposure to UV rays can cause the oil to lose its aroma and therapeutic properties.
When it comes to dilution, caution is required with plastic containers as certain types can react with essential oils. Diluted essential oils can be stored in plastic containers, typically PET plastics, which are less expensive than glass. However, it is important to ensure that the lids are of high quality and airtight to prevent oxidation and evaporation.
To summarise, while some plastics are suitable for storing diluted essential oils, pure essential oils are best stored in glass containers to maintain their quality and effectiveness. Glass is impervious to essential oils, easy to clean, and provides better protection from UV rays.
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Diluted essential oils can be stored in PET plastic
Some essential oils tend to be caustic and need to be stored in non-porous and non-reactive containers. Traditionally, essential oils have been packaged in glass jars and bottles, but glass is heavy, expensive, and prone to breaking if dropped. This has led to the search for alternative materials, like plastics, that can safely store essential oils.
Not all plastics are created equal when it comes to storing diluted essential oils. Most plastics tend to break down when exposed to the corrosive properties of these oils. However, there are two types of plastic that are widely recognized as being compatible with essential oils: HDPE (High-Density Polyethylene) and PET (Polyethylene Terephthalate). These plastics are known for their durability and resistance to breaking down and leaking. They are also lightweight and won't shatter if dropped, making them safer alternatives to glass.
PET plastic, in particular, is a good option for storing, shipping, and selling essential oils. It is transparent, durable, and has a good barrier against moisture and gas, helping to preserve the quality of essential oils by preventing external elements from affecting them. To ensure the safe storage of essential oils in PET plastic containers, it is recommended to use tinted or completely dark containers to protect the oils from direct sunlight, which can affect their color and constituents. Additionally, essential oils should be stored in a cool, dark place to maintain their potency and effectiveness.
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Glass is recommended for storing essential oils
Pure essential oils contain volatile organic compounds, which means they are flammable and sensitive to heat, light, oxygen, and moisture. Therefore, essential oils must be stored in a cool, dark place. Glass is recommended for storing essential oils because it is non-porous and will not interact with the chemical composition of these liquids.
Glass bottles, particularly amber and cobalt blue glass, are ideal for storing essential oils. These coloured glass bottles protect the oils from UV rays, keeping them potent for longer periods. Additionally, the type of closure for the bottles is also important. Child-resistant dropper caps with threaded closures that provide a tight seal, such as phenolic screw caps, are preferred. They help prevent oil evaporation and loss of potency, and phenolic caps are designed to withstand most chemical substances.
While plastic can be used for diluted essential oils, the ratio of dilution is critical to the plastic's stability over time. The plastic must be tinted or completely dark to maintain the oil's potency. However, certain plastics may deteriorate from the chemical composition of the pure essential oil, and the oil may degrade the plastic itself over time.
Prominent aromatherapy expert Robert Tisserand suggests storing essential oils in a refrigerated environment whenever possible. If refrigeration is not an option, it is recommended to store them in a cool location.
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Frequently asked questions
Polycarbonate is not considered safe for use with fragrance oils. It is vulnerable to degradation, softening, and discoloration when exposed to fragrance oils for prolonged periods.
Polycarbonate (PC) is a type of plastic used in clear containers and lenses. It has a high melting point of around 288°C (550°F).
Fragrance oils can cause polycarbonate to scratch, discolour, soften, and weaken structurally. These effects are due to the chemical composition of both the oil and the plastic.
To avoid damaging your polycarbonate items, keep them away from prolonged exposure to fragrance oils. Always test new products on a small, inconspicuous area first to check for any adverse reactions. Instead of fragrance oils, use soap and water or specialised plastic cleaners to maintain the integrity of your polycarbonate items.
