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Merck Chemicals (Shanghai) Co., Ltd. is the subsidiary of the globally operating group Merck KGaA, Darmstadt (Germany) and provides Chinese market with high quality life science and chemical products and services
The contact persons for the specific product groups of the Chemicals businesses are listed on the website of Merck Group in China.
*The following content is generated by AI and is for reference only.
Citric acid monohydrate is a widely utilized organic compound derived from the natural fermentation of sugars by the mold *Aspergillus niger*. Chemically, it is the monohydrate form of citric acid, characterized by its crystalline structure and distinct sour taste. As one of the most versatile chemicals in the food and beverage industry, it serves primarily as an acidulant, flavor enhancer, and preservative. In soft drinks, candies, and jams, it provides the characteristic tartness while extending shelf life by lowering pH levels to inhibit microbial growth. Beyond food applications, this compound plays a critical role in pharmaceuticals as an effervescent agent and a chelating agent that binds metal ions, thereby preventing oxidation and stabilizing formulations.
In the household sector, citric acid monohydrate is a key ingredient in eco-friendly cleaning products. Its ability to dissolve calcium carbonate makes it highly effective for removing limescale from kettles, taps, and washing machines without the harsh fumes associated with traditional mineral acids. It is also frequently used in personal care items such as bath bombs, facial cleansers, and exfoliants due to its gentle yet effective exfoliating properties. Furthermore, the chemical industry utilizes it as a biodegradable alternative to phosphates in water treatment processes and as a buffer in various industrial reactions.
When handling citric acid monohydrate, standard safety precautions are essential despite its generally recognized as safe (GRAS) status for food use. While non-toxic, direct contact with high concentrations can cause mild irritation to the skin and eyes. Inhalation of dust should be avoided to prevent respiratory discomfort. Users should store the product in a cool, dry place away from moisture to maintain its crystalline integrity, as exposure to humidity may cause clumping or premature hydration changes. Proper ventilation is recommended during large-scale handling or mixing procedures. By adhering to these guidelines, users can safely leverage the multifaceted benefits of citric acid monohydrate across diverse sectors ranging from culinary arts to industrial manufacturing.