The product we are discussing is phosphonic acid, disodium salt with the CAS number 13708 - 85 - 5. This compound is often supplied straight from the factory at the best price.
Chemical Formula: The chemical formula of phosphonic acid, disodium salt is generally represented as Na₂HPO₃. It consists of two sodium (Na) atoms, one hydrogen (H) atom, one phosphorus (P) atom, and three oxygen (O) atoms.
Molecular Weight: The molecular weight of this compound can be calculated based on the atomic masses of its constituent elements. With sodium having an atomic mass of approximately 23 g/mol, hydrogen about 1 g/mol, phosphorus around 31 g/mol, and oxygen roughly 16 g/mol, the molecular weight of Na₂HPO₃ is approximately 126 g/mol.
Appearance: Usually, it appears as a white crystalline powder. This physical form makes it easy to handle and store under appropriate conditions.
Solubility: It is soluble in water. This solubility property is crucial as it allows for various applications where an aqueous solution is required.
Water Treatment: Phosphonic acid, disodium salt is widely used in water treatment processes. It can act as a scale inhibitor, preventing the formation of scale in pipes and industrial equipment. By chelating metal ions such as calcium and magnesium, it stops them from precipitating out as scale, thus extending the lifespan of water - handling systems.
Food Industry: In the food industry, it can be used as a food additive. It may function as a sequestrant, helping to maintain the stability and quality of food products. It can also be involved in controlling the acidity or alkalinity of foodstuffs during processing.
Metal Surface Treatment: It is employed in metal surface treatment. It can passivate metal surfaces, protecting them from corrosion. By forming a thin protective layer on the metal, it enhances the metal's resistance to environmental factors.
Preparation of Solution: When using phosphonic acid, disodium salt, first, a suitable container should be chosen. Add an appropriate amount of the compound to distilled water. Stir gently until it is completely dissolved. The concentration of the solution depends on the specific application. For water treatment, a typical concentration might range from 10 - 50 ppm (parts per million).
Application in Water Treatment: In water treatment systems, the prepared solution can be added continuously or intermittently. The addition point should be carefully selected to ensure good mixing with the water. Regular monitoring of water quality parameters such as pH, hardness, and scale formation is necessary to adjust the dosage of the compound.
Application in Food Industry: In the food industry, it should be added according to the relevant food safety regulations. The compound should be thoroughly mixed with the food ingredients during the processing stage. Precise measurement is crucial to ensure the safety and quality of the final food product.
Case 1: Industrial Water Cooling System
A large - scale industrial plant had a problem with scale buildup in its water cooling system. The scale was reducing the heat transfer efficiency, leading to increased energy consumption. After implementing the use of phosphonic acid, disodium salt as a scale inhibitor, the scale formation was significantly reduced. The plant added a 20 ppm solution of the compound to the cooling water. Over a period of six months, the heat transfer efficiency improved by 15%, and the energy consumption decreased by 12%.
Case 2: Canned Food Production
A canned food manufacturer was facing issues with the discoloration and spoilage of its canned fruits. By using phosphonic acid, disodium salt as a sequestrant, the quality of the canned fruits improved. The manufacturer added the compound at a concentration of 0.1% during the canning process. As a result, the shelf - life of the canned fruits was extended by two months, and the discoloration problem was effectively solved.
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