Guangzhou Zhifan Chemical Co., Ltd.
As a chemical trading company with a focus on raw materials, Zhifan Chemical firmly believes in the principles of honesty and cooperation for mutual benefit. Established in 2009, our warehouse boasts 5,000 square meters of space and a stock capacity of 3,000 tons, ensuring a steady supply to meet the needs of our valued customers. We take pride in providing high-quality products and services, while prioritizing ethical business practices to build long-term relationships with our clients. Our commitment to integrity and teamwork has established us as a trusted partner in the chemical industry. Come partner with us for a win-win situation.
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what is Sodium tripolyphosphate (STPP)
Sodium tripolyphosphate is an inorganic compound with the chemical formula Na₅P₃O₁₀. It is an amorphous water-soluble linear polyphosphate. It has two crystalline states, namely type I (high temperature type) and type II (low temperature type). Although the two are different in bond length and bond angle, their chemical properties are the same. Among them, type I has higher thermal stability and hygroscopicity than type II.
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Sodium tripolyphosphate is widely used in many fields. In the food industry, it is often used as a moisture retaining agent, quality improver, pH regulator and metal chelating agent to improve the taste and texture of food. For example, in the curing process of ham raw meat, the use of sodium tripolyphosphate can optimize the curing effect. In addition, it can also be used to make synthetic detergents, industrial water softeners, leather pretanning agents, dyeing auxiliaries, organic synthesis catalysts, etc. In the field of environmental protection, sodium tripolyphosphate can chelate calcium ions, magnesium ions, copper ions, ferrous iron ions, etc. in the solution, reducing the hardness of water, thus purifying water quality. it can quickly soften the peels of fruits and vegetables and improve the extraction efficiency of pectin.
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Regarding the production of sodium tripolyphosphate, there are two main methods: spray drying-converter polycondensation two-stage method and drying-dehydration one-stage method. The former product does not need to be crushed, the drying efficiency is high, and the material is uniform, but the dust loss is large; the latter uses heating to dehydrate and polycondensate the material and convert it into sodium tripolyphosphate.
It is worth noting that sodium tripolyphosphate is generally considered non-toxic and poses no harm to human health, so it is allowed to be used as a food additive. However, the use of any additives should follow precise additive dosage standards to avoid excessive addition.
Overall, sodium tripolyphosphate is a multifunctional and widely used compound that plays an important role in many fields. However, you still need to pay attention to its possible effects when using it, and follow relevant safety regulations and dosage standards.
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