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Chemically, 2-butyne can undergo various reactions common to alkynes. It can participate in hydrogenation, where hydrogen gas is added to saturate the compound, resulting in the formation of alkanes. This reaction can be catalyzed by metals such as palladium or platinum. Additionally, 2-butyne can undergo halogenation and hydrohalogenation, where halogens or hydrogen halides are added across the triple bond, leading to the formation of haloalkenes.
2-butyne formula

Calcium propionate is predominantly utilized in the production of bread, cakes, and other baked goods, where mold growth is a significant concern. It is also employed in dairy products, such as cheese, and in processed meats to prolong their shelf life. The recommended usage levels for calcium propionate typically range from 0.1% to 0.5% of the total recipe, depending on the specific product and desired shelf stability.
calcium propionate preservative
