Sodium Tripolyphosphate STPP

A chemical formula of na5p3o10 is sodium tripolyphosphate, an organic substance. It's a type of water-soluble, amorphous linear polyphosphate.

Description of Tripolyphosphate sodium tpp： 

Chemical structure: Sodium tripolyphosphate is a compound of three phosphoric acid molecules linked by Na5P3O10.

Physical properties: Sodium tripolyphosphate is a white crystalline powder with hygroscopic properties, easily soluble in water but insoluble in organic solvents. Its aqueous solution is weakly alkaline, with a 1.62g/cm3 density and a melting point of 680℃.

Chemical properties: Sodium tripolyphosphate is stable and cannot decompose quickly at room temperature. It has a solid chelating ability, can form a complex with various metal ions, and can react with calcium ions to produce insoluble calcium phosphate precipitation. Sodium tripolyphosphate, when consumed on average, will not cause harm to the human body, but excessive intake may affect the body's absorption of calcium, magnesium, and other elements. Therefore, the amount of sodium tripolyphosphate used in food processing should be controlled. In addition, because sodium tripolyphosphate is hygroscopic, long-term exposure to air may absorb water and caking, affecting its use effect. Therefore, pay attention to sealed storage during use.

 Technical Parameters Sodium tripolyphosphate    

Production Method of Tripolyphosphate sodium tpp：  
Chemical synthesis

Chemical synthesis is the primary method to produce sodium tripolyphosphate. The method converts inorganic phosphorus salt into sodium tripolyphosphate by chemical reaction. The raw material commonly used is phosphoric acid or phosphate, such as sodium phosphate, disodium hydrogen phosphate, etc.

The phosphate and sodium hydroxide solution are mixed in the synthesis process, and the reaction is carried out under heating conditions. The reaction temperature and concentration need to be controlled during the reaction to ensure that the resulting product is sodium tripolyphosphate and not other compounds.

The advantages of chemical synthesis are a mature production process, large yield and stable quality. However, this method requires many chemical reagents and energy, so the production cost is high.

Biological fermentation

Biological fermentation is a method to produce sodium tripolyphosphate by microbial fermentation. This method uses certain microorganisms to convert inorganic phosphorus salts into sodium tripolyphosphate.

In the biological fermentation method, the appropriate amount of phosphate is mixed with the strain, and the fermentation is carried out under suitable conditions. Microbes take up the phosphorus in the salt and convert it into sodium tripolyphosphate. High-purity sodium tripolyphosphate can be obtained by controlling fermentation conditions.

The advantages of biological fermentation are simple production processes, low energy consumption and low cost. In addition, the method can also produce other types of phosphate compounds. However, the biological fermentation method has a lower yield and requires the use of a large number of microorganisms, so it is not suitable for large-scale production.

Pyrolysis method

Pyrolysis is a method of decomposing organic matter into sodium tripolyphosphate at high temperatures. This method uses some organic matter as raw material, such as polyphosphate, ammonium polyphosphate, etc.

In the pyrolysis method, the raw material is heated to a high temperature and held for a specific time to break down into sodium tripolyphosphate and other gases. The resulting product is cooled, separated and dried to obtain sodium tripolyphosphate.

The advantages of pyrolysis are a simple production process, low energy consumption and low cost. In addition, the method can use waste as raw materials, so it has a particular environmental significance. However, the pyrolysis method has a low yield and requires high-temperature equipment, so it is unsuitable for large-scale production.

Electrochemical method

The electrochemical method is a method of producing sodium tripolyphosphate by electrolytic reaction. The method uses an electrolytic cell and electrode reaction to synthesize sodium tripolyphosphate.

In electrochemical methods, a phosphate solution is used as an electrolyte and an electric current is applied. Chemical reactions occur at the electrodes to produce sodium tripolyphosphate and other compounds. The resulting product is separated and dried to obtain sodium tripolyphosphate.

The electrochemical method has the advantages of a simple production process, low energy consumption and low cost. In addition, the method does not use chemical reagents and high-temperature equipment, so it is environmentally friendly. However, the electrochemical method has a low yield and requires a large amount of electricity, so it is unsuitable for large-scale production.

Applications of Tripolyphosphate sodium tpp：  

Detergent industry

Sodium tripolyphosphate is the most widely used in the detergent industry. As one of the main components of detergent, sodium tripolyphosphate has good decontamination, emulsification, dispersion and buffering properties. It can effectively remove various stains on clothing, tableware and household items and improve the washing effect of detergent. In addition, sodium tripolyphosphate can reduce the detergent's skin irritation, increase its gentleness, and make it more suitable for daily use.

Food processing industry

In the food processing industry, sodium tripolyphosphate is mainly used as a food additive to improve food's water retention and texture. For example, in meat products, sodium tripolyphosphate can increase the water retention of meat, allowing it to maintain a tender taste during cooking. In soy products, sodium tripolyphosphate can increase the elasticity and texture of products such as tofu and improve its taste and quality. In addition, sodium tripolyphosphate can be used to make cold drinks such as ice cream to increase its stability and taste.

The pharmaceutical industry

In the pharmaceutical industry, sodium tripolyphosphate is mainly used as pharmaceutical intermediates and excipients. It can ensure drugs, such as antibiotics, vitamins, etc. In addition, sodium tripolyphosphate can also be used as drug excipients to regulate the solubility and stability of drugs and improve the bioavailability and efficacy of drugs.

Agricultural industry

In the agricultural industry, sodium tripolyphosphate is mainly used as phosphate fertilizer and soil amendment. In addition, sodium tripolyphosphate can also regulate soil pH, improving soil structure and fertility. Therefore, agricultural production widely uses it to improve crop yield and quality.

Be aware of the following:   Sodium tripolyphosphate      

 1. This product is not toxic and innocuous, it can be biodegraded, but it cannot be eaten.
 2. You should rinse it off with lots of water if it gets in your eyes.
 3. A doctor should be consulted immediately if allergies are caused to any portion of the body.

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