When you bring a new couch with comfortable, firm cushioning into your home, you can expect that it has been treated to meet flammability standards. In a fire, polyurethanefoam in upholstered furniture without flame retardant treatment can ignite easily and support rapid flame spread – synthetic fibers can melt and fuel combustion. Although fireis certainly…
Polychlorinated biphenyls (PCBs) are chlorinated organic compounds widely used in various industrial applications from the 1930s until their ban in the late 1970s. The compounds have excellent heat resistance and electrical insulating properties, so they were commonly used in industrial equipment. PCBs were also prevalent in caulking as a plasticizer in buildings constructed between 1950…
You probably know what salmon and tires are, but have you ever heard of 6PPD? How about 6PPD-q? 6PPD stands for N-(1,3-dimethylbutyl)-N’-phenyl-p-phenylenediamine. When this compound is exposed to air, ozone reacts with 6PPD to form its quinone, 6PPD-q. How about salmon and tires? 6PPD is a tire stabilizer that prevents tires from breaking down. As…
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