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Another key category includes flotation agents or collectors. In the mining of copper and other base metals, flotation agents are used to promote the separation of minerals from gangue, enhancing ore recovery. These chemicals work by increasing the hydrophobicity of target minerals, allowing them to attach to air bubbles and rise to the surface, forming a froth that can be easily removed. Common flotation agents include xanthates, which can pose environmental risks if they enter waterways, thus necessitating careful monitoring and management.
chemicals used in mining industry

In the food industry, acetic acid serves as a food preservative, contributing to the tangy flavor of vinegar, which has an acetic acid concentration of around 4-8%. Additionally, glacial acetic acid is a precursor in manufacturing various chemical substances, including vinegar, esters, and anhydrides. The production of acetic anhydride, which is derived from acetic acid, plays a crucial role in the synthesis of pharmaceuticals and plastics.
glacial acetic acid 99

In addition to food, preservatives are also widely used in personal care products, such as lotions, shampoos, and cosmetics. Products that contain water are susceptible to microbial growth, making preservatives essential in these contexts as well. Parabens, which include methylparaben and propylparaben, are among the most commonly used preservatives in cosmetics. They serve to prolong the shelf life of products, preventing them from becoming contaminated and ensuring they remain safe for consumer use.
common preservatives

There are various categories of food additives recognized in China, including preservatives, flavor enhancers, colorings, emulsifiers, and stabilizers. Preservatives, such as sodium benzoate and sorbic acid, are commonly used to extend the shelf life of products by inhibiting microbial growth. Similarly, flavor enhancers like monosodium glutamate (MSG) are popular in many Chinese dishes, enhancing the umami taste and overall flavor profile of foods. While these additives provide benefits, they have also faced scrutiny over potential health risks and negative consumer perceptions.
food additives in china
