Sodium Tripolyphosphate, CAS NO.：7758-29-4

Pentasodium phosphate; Sodium pyrometaphosphate; STPP; Pentasodium tripolyphosphate.
white powder or fine particles, easily soluble in water, and its aqueous solution is alkaline.

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Description

Overview of Sodium Tripolyphosphate
Alias: Pentasodium phosphate; Sodium pyrometaphosphate; STPP; Pentasodium tripolyphosphate
Chemical formula: Na5P3O10
CAS NO.：7758-29-4
Properties: white powder or fine particles, easily soluble in water, and its aqueous solution is alkaline.

Application of of Sodium Tripolyphosphate
In industry, it is used as the main additive for synthetic detergents, soap synergist, leather pre-tanning agent, and water softener for industrial water; effective dispersion in the treatment of suspensions such as paint, kaolin, magnesium oxide, and calcium carbonate drilling mud. agent; used in papermaking as an anti-grease agent; (2) In the food industry, it is mainly used as a quality improver for canned food, dairy products, juice drinks, soy milk, etc.; as a water-retaining agent and tenderizer for meat products such as ham and luncheon meat; in the food industry In the processing of aquatic products, it can not only retain water and tenderize, but also play a role in swelling and bleaching; it can soften skin beans in canned broad beans; it can also be used as a water softener, chelating agent, PH regulator and thickener, and in the beer industry middle. Sodium tripolyphosphate is generally added at 3-5‰ in food processing, and the maximum amount in aquatic product processing is 3%.

Industrial Grade (tested according to GB/T9984-2008)

Test items	Standard value	Test data	Test judgement
Exterior	White Powder	White Powder	qualified
White rate/%	≥85	89.4	qualified
Sodium tripolyphosphate (Na5P3O10)/%	≥90	94.81	qualified
Phosphorus pentoxide (P2O5)/%	≥56.5	56.6	qualified
Water insoluble matter/%	≤0.1	0.01	qualified
Iron(Fe)/%	≤0.015	0.006	qualified
PH value (10g/L solution)	9.2-10	9.71	qualified
1mm test sieve pass rate %	≥95	99	qualified

Food Grade (tested according to GB1886.335-2021)

Test items	Standard value	Test data	Test judgement
Exterior	White Powder	White Powder	qualified
Sodium tripolyphosphate (Na5P3O10)/%	≥85	97.9	qualified
Phosphorus pentoxide (P2O5)/%	56-58	57.9	qualified
Water insoluble matter/%	≤0.1	0.006	qualified
PH value (10g/L solution)	9.1-10.1	9.9	qualified
Fluorine(F) mg/kg	≤20	2.3	qualified
Lead(Pb)mg/kg	s2	1.2	qualified
Arsenic (As) mg/kg	s3	0.2	qualified
Heavy metal (calculated as Pb)mg/kg	≤10	<10	qualified

Company Profile
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.
If you are looking for high-quality Sodium Tripolyphosphate, please feel free to contact us or click on the needed products to send an inquiry.

Payment Methods of Sodium Tripolyphosphate
L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment of Sodium Tripolyphosphate
It could be shipped by sea, by air, or by reveal ASAP as soon as repayment receipt.

Package of Sodium Tripolyphosphate
We have many different kinds of packaging, which depend on amount.
vacuum packaging, 100g, 500g, or 1kg/bag, 25kg/barrel, or as you request.

FAQ

Q1
Is sodium tripolyphosphate harmful to the human body?
Answer: Sodium tripolyphosphate is safe when used in moderation, but excessive intake may cause harm to the human body. For example, too much sodium tripolyphosphate may cause gastrointestinal discomfort, calcium loss, liver and kidney damage, and other problems. Therefore, the dosage needs to be strictly controlled when using sodium tripolyphosphate in food.

Q2
What is the role of sodium tripolyphosphate in detergents?
Answer: In detergents, sodium tripolyphosphate is used as a water softener. It can prevent the calcium and magnesium ions in the water from combining with the active ingredients in the detergent, thereby improving the cleaning effect of the detergent.

Q3
Does sodium tripolyphosphate have any impact on the environment?
Answer: If sodium tripolyphosphate is directly discharged into water bodies without treatment, it may lead to eutrophication of water bodies, causing algae blooms and deterioration of water quality. Therefore, environmental protection needs to be paid attention to when using and handling sodium tripolyphosphate.

Q4
How to choose a suitable sodium tripolyphosphate product?
Answer: When choosing a suitable sodium tripolyphosphate product, you need to consider factors such as product purity, particle size, moisture content, and application fields. At the same time, choosing suppliers with good reputation and stable supply is also the key to ensuring product quality.

Q5
What are the storage conditions for sodium tripolyphosphate?
Answer: Sodium tripolyphosphate should be stored in a dry, ventilated, and cool place, away from direct sunlight and high temperatures. At the same time, it should be stored separately from acids, oxidants and other substances to prevent chemical reactions.

Q6
What is the solubility of sodium tripolyphosphate?
Answer: Sodium tripolyphosphate has high solubility and is easily soluble in water. Its solubility may change under different temperature and pH conditions.

Q7
What is the production process of sodium tripolyphosphate?
Answer: The production of sodium tripolyphosphate usually involves the reaction of phosphoric acid and soda ash or caustic soda, and is produced through steps such as neutralization, concentration, crystallization, separation, and drying. The specific production process may vary depending on the manufacturer and equipment.

Q8
How to avoid overuse of sodium tripolyphosphate?
Answer: In order to avoid excessive use of sodium tripolyphosphate, its addition amount needs to be strictly controlled during food processing, detergent manufacturing, etc. At the same time, strengthening product quality testing and supervision is also an important means to ensure the rational use of sodium tripolyphosphate.