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Titanium dioxide (TiO2) is a white pigment used in various food products, adding brightness and enhancing colors. Its safety and use in food have been a subject of regulatory scrutiny. The European Food Safety Authority (EFSA) in 2021 declared titanium dioxide no longer considered safe as a food additive due to concerns about its potential to damage DNA. This marked a shift from previous assessments which allowed a daily intake of up to 2.5 mg/kg body weight. Consequently, many countries are reviewing or have restricted its use in food products. In contrast, other regions may still permit titanium dioxide, but the evolving scientific understanding and regulatory landscape suggest caution and a trend toward reduction or elimination in foods.
It is generally considered safe by the U.S. Food and Drug Administration FDA to be a food additive. Nanoparticles. however. have sparked much scientific debate about potential health risks. since they make up less than 1% of a food's weight. Therefore. while small amounts are usually safe. it is recommended that consumption be limited as much as possible until more definitive research conclusions are reached.
Polypropylene (PP) and Polystyrene (PS) are both thermoplastic polymers, widely used in the packaging industry, household items, and much more. PP is known for its high flexural strength, resistance to chemicals, and higher melting point (160°C), making it suitable for containers that can withstand boiling water. It is also more resistant to fatigue, meaning it's used in items like living hinges. Polystyrene, on the other hand, is more rigid, offers clear or foam options (think clear food containers and Styrofoam), and has a lower melting point (around 100°C), which limits its use with hot contents. PS is cost-effective for producing rigid and brittle products but poses environmental challenges due to its poor biodegradability. PP, while also challenging to degrade, is slightly more environmentally friendly due to its recycling potential. Each material's choice depends on the application's specific requirements, including temperature resistance, flexibility, clarity, and environmental impact.
Caustic soda, also known as sodium hydroxide, is a highly corrosive chemical used in various industrial processes, including cleaning and unclogging drains. While it's effective for removing grease and organic matter, using caustic soda in your washing machine is not recommended. It can cause significant damage to the machine's components, including the seals, hoses, and plastic parts, due to its corrosive nature. Additionally, if not thoroughly rinsed, it could leave hazardous residues that might damage fabrics or irritate skin upon contact. For cleaning or maintaining your washing machine, it's safer and more advisable to use products specifically designed for washing machines, following the manufacturer's guidelines to avoid any damage.
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