Tetrasodium Pyrophosphate, with the CAS number 7722 - 88 - 5, is a high - quality chemical product offered at a low price. It appears as a white crystalline powder. The chemical formula of Tetrasodium Pyrophosphate is Na₄P₂O₇. It has a molecular weight of approximately 265.90 g/mol.
This product is highly soluble in water, and its aqueous solution is alkaline. It has good chelating properties, which means it can bind to metal ions such as calcium, magnesium, and iron. The pH value of a 1% aqueous solution of Tetrasodium Pyrophosphate is typically around 9.5 - 10.5. It is stable under normal storage conditions but should be kept away from moisture and strong acids.
Tetrasodium Pyrophosphate has a wide range of applications in various industries:
Food Industry: It is used as a food additive, functioning as a quality improver, emulsifier, and stabilizer. In meat products, it can improve water - holding capacity, enhance tenderness, and prevent oxidation. In dairy products, it helps to prevent the coagulation of milk proteins and maintain the stability of the product.
Detergent Industry: Due to its excellent chelating ability, it is added to detergents to remove metal ions from water, thereby improving the washing efficiency and preventing the precipitation of metal salts on fabrics. It also helps to disperse dirt and prevent redeposition.
Water Treatment: It can be used to control the hardness of water by chelating calcium and magnesium ions. This application is important in boiler water treatment to prevent scale formation, which can reduce energy efficiency and damage equipment.
Food Application: When using Tetrasodium Pyrophosphate in the food industry, it should be dissolved in water first. The amount of use depends on the specific food product. For example, in meat products, the recommended usage range is usually 0.3% - 0.5% of the total weight of the meat. The dissolved solution can be added to the meat during the marinating process. It is important to follow the relevant food safety regulations and standards.
Detergent Application: In the detergent industry, it can be directly added to the detergent formulation during the production process. The addition amount is typically determined by the type and performance requirements of the detergent, usually ranging from 1% - 5% of the total weight of the detergent.
Water Treatment: For water treatment, the appropriate dosage of Tetrasodium Pyrophosphate is calculated based on the hardness of the water. It can be added to the water in the form of a solution, and proper mixing is required to ensure uniform distribution.
Meat Processing Factory: A meat processing factory was facing the problem of low water - holding capacity in its beef products, resulting in weight loss during cooking and poor texture. After adding 0.4% Tetrasodium Pyrophosphate to the beef marinating solution, the water - holding capacity increased significantly. The cooked beef was more tender and juicy, and the yield increased by about 10%, which improved the economic benefits of the factory.
Laundry Detergent Manufacturer: A laundry detergent manufacturer found that its detergent had poor cleaning performance in hard water areas. By adding 3% Tetrasodium Pyrophosphate to the detergent formulation, the chelation of calcium and magnesium ions in the water was enhanced. As a result, the washing efficiency improved, and the detergent was able to remove stains more effectively. Customer feedback on the product quality also improved.
Boiler Water Treatment Company: A boiler water treatment company was responsible for treating the water in a large - scale industrial boiler. Due to the high hardness of the water source, scale formation on the boiler tubes was a serious problem. After adding an appropriate amount of Tetrasodium Pyrophosphate to the boiler water, the scale formation was effectively controlled. The energy consumption of the boiler decreased by about 15%, and the service life of the boiler equipment was extended.
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