Sodium Tripolyphosphate (STPP), with the CAS number 7758 - 29 - 4, is an inorganic compound. It typically appears as a white crystalline powder. The molecular formula of STPP is Na₅P₃O₁₀.
In terms of purity, our factory - supplied STPP can reach high levels, usually above 94%. It has a density of about 2.52 g/cm³. The melting point of STPP is around 622 °C. It is highly soluble in water, and its aqueous solution is alkaline.
Our STPP is produced through advanced manufacturing processes, ensuring high - quality and stable performance in various applications.
1. Detergent Industry: STPP is a key ingredient in laundry detergents, dishwashing detergents, and industrial cleaners. It acts as a water softener, preventing the precipitation of calcium and magnesium ions, which can improve the cleaning efficiency of detergents.
2. Food Industry: It is used as a food additive. In meat products, it can increase the water - holding capacity, improve texture, and prevent color changes. In canned seafood, it helps to maintain the moisture and flavor of the product.
3. Water Treatment: STPP can be used to control corrosion and scale in water systems, such as cooling towers and boilers. It forms a protective film on metal surfaces, reducing the damage caused by corrosion.
4. Ceramic Industry: It is used as a deflocculant in ceramic slurries, improving the fluidity and stability of the slurry, which is beneficial for the molding process of ceramic products.
1. Detergent Manufacturing: When using STPP in detergent production, it should be added to the mixture at an appropriate stage. Usually, it is mixed with other raw materials, such as surfactants and builders. The dosage of STPP depends on the formulation of the detergent, but generally, it accounts for 15% - 30% of the total mass.
2. Food Processing: In the food industry, the usage of STPP must comply with relevant food safety standards. For meat products, it can be dissolved in water and then used to marinate the meat. The concentration of the STPP solution is usually 0.1% - 0.5%.
3. Water Treatment: For water treatment in industrial systems, STPP can be added directly to the water. The dosage needs to be determined according to the water quality and the scale and corrosion control requirements of the system.
4. Ceramic Production: In the ceramic industry, STPP is usually added to the ceramic slurry in the form of an aqueous solution. The dosage is adjusted according to the properties of the ceramic raw materials and the requirements of the slurry.
**Case 1: Laundry Detergent Manufacturer**
A laundry detergent manufacturer used our STPP in their new formula. Before using STPP, their detergent had poor cleaning performance in hard water areas. After adding 20% STPP to the detergent formulation, the cleaning efficiency increased significantly. Consumers in hard water areas reported that the new detergent could remove stains more effectively, and the clothes became softer after washing.
**Case 2: Meat Processing Factory**
A meat processing factory used STPP in their beef products. They prepared a 0.3% STPP solution to marinate the beef. After marinating, the beef had better water - holding capacity. During the cooking process, the beef lost less water, and the texture was more tender and juicy. The factory's product quality was improved, and the sales volume increased.
**Case 3: Cooling Tower Water Treatment**
An industrial plant had problems with scale and corrosion in their cooling tower. They added an appropriate amount of our STPP to the cooling water. After a period of use, the scale formation in the cooling tower was significantly reduced, and the corrosion rate of the metal pipes decreased. This reduced the maintenance cost and improved the operating efficiency of the cooling tower.
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