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Bisphenol A (BPA) is a chemical compound primarily used in the manufacturing of various plastics. It is a colourless solid which is soluble in most common organic solvents, but has very poor solubility in water. [2] [7] BPA is produced on an industrial scale by the condensation reaction of phenol and acetone. Global production in 2022 was ...
Exceptions include bisphenol S, P, and M. "Bisphenol" is a common name; the letter following denotes the variant, which depends on the additional substituents. Bisphenol A is the most popular representative of the group, with millions of metric tons produced globally in the past decade, often simply called "bisphenol".
Bisphenol A is an endocrine disruptor that can mimic estrogen and has been shown to cause negative health effects in animal studies. Bisphenol A closely mimics the structure and function of the hormone estradiol by binding to and activating the same estrogen receptor as the natural hormone.
Baking Powder. For one 1 teaspoon of baking powder, use 1/4 tsp. baking soda and 1/2 tsp. vinegar or lemon juice and milk to total half a cup. Make sure to decrease the liquid in your recipe by ...
Because curing increases the solute concentration in the food and hence decreases its water potential, the food becomes inhospitable for the microbe growth that causes food spoilage. Curing can be traced back to antiquity , and was the primary method of preserving meat and fish until the late 19th century.
Bisphenol A diglycidyl ether slowly hydrolyzes to 2,2-bis[4(2,3-dihydroxypropoxy)phenyl)propane (bis-HPPP). Similarly, DGEBA reacts with acrylic acid to give vinyl ester resins . The reaction results in opening of the epoxide ring, generating unsaturated esters at each terminus of the molecule.
As of 1999, only 7% of municipal wastewater treatment facilities in the United States have the tertiary treatment processes needed to remove greater than 20% of the phosphate from affluent wastewater. [15] Even today, there remains a lack of technologies for phosphate removal in the smaller water treatment facilities found in non-urban areas. [16]
Baking soda and water have also been used to improve physical performance in sports, says Prest, “since it can potentially neutralize lactic acid buildup.” But more research is needed for a ...