Citric acid ingredients
Citric acid is also called citric acid, and its chemical name is 2-hydroxypropane-1,2,3-tricarboxylic acid. Structurally, citric acid is a tricarboxylic acid compound, and therefore has similar physical and chemical properties to other carboxylic acids. When heated to 175 ℃, it will decompose to produce carbon dioxide and water, leaving some white crystals. Citric acid is a strong organic acid with 3 H+ that can be ionized; it can be decomposed into various products when heated, and react with acids, alkalis, glycerin, etc.
The role of citric acid
Citric acid is mainly used as a sour agent, solubilizer, buffer, antioxidant, deodorant, flavor enhancer, gelling agent, toner, etc. In addition, citric acid also inhibits bacteria, protects color, improves flavor, and promotes sucrose conversion. Citric acid also has a chelating effect, which can remove certain harmful metals. Citric acid can prevent oxidation caused by enzyme catalysis and metal catalysis, thereby preventing quick-frozen fruits from discoloring and flavoring.
The main purpose of citric acid
Used in the food industry: Because citric acid has a mild and refreshing sour taste, it is commonly used in the manufacture of various beverages, sodas, wines, candies, snacks, biscuits, canned juices, dairy products and other foods. In all organic acid markets, citric acid has a market share of more than 70%. Flavoring agents can also be used as antioxidants for edible oils.
For environmental protection: The citric acid-sodium citrate buffer solution is a desulfurization absorbent with great development value due to its low vapor pressure, non-toxicity, stable chemical properties, and high SO2 absorption rate.
Used for sterilization: The combined effect of citric acid and 80°C temperature has a good effect of killing bacterial spores, and can effectively kill bacterial spores contaminated in the hemodialysis machine pipeline, which is very good for food hygiene.
Used in medicine: Citrate ions and calcium ions can form a soluble complex that is difficult to dissociate, thereby reducing the concentration of calcium ions in the blood and hindering blood coagulation. This product is used as an in vitro anticoagulant during blood transfusion or laboratory blood sample anticoagulation.
To sum up, a citric acid that can be used in both food and medicine, is ubiquitous and widely used in life, do you still doubt its safety? Are you still worried that using it to clean water pipes will threaten water pipes and your health?