Key attributes
Molecular formula: Na5P3O10
Molecular weight: 367.86
Industrial grade CAS 7758-29-4
Industrial grade products & COA meets GB/T 9983-2004 standard:
| Items for detecting and analyzing | Standard value |
| Main content: sodium tripolyphosphate ≥ | 96.0% |
| Phosphorus pentoxide P2O5≤ | 57.0% |
| Water insoluble≤ | 0.10% |
| Iron ≤ | 0.007% |
| Ph Value (1%) | 9.2-10.0 |
| Whiteness ≥ | 90 |
Physical and chemical properties of Sodium Tripolyphosphate
| Chemical Formula | Na₅P₃O₁₀ |
| Molecular Weight | 367.86 g/mol |
| Appearance | White crystalline or powdery solid. |
| Form | Typically exists as an anhydrous compound (Na₅P₃O₁₀) or a
hexahydrate (Na₅P₃O₁₀·6H₂O). |
| Water Solubility | Highly soluble in water, with solubility increasng with
temperature. At 20°C, solubility is approximately 14 g/100 mL. At 60°C, solubility is approximately 30 g/100 mL. |
| Other Solvent | Insoluble in organic solvents (e.g., ethanol). |
| Aqueous Solution pH | The pH of a 1% aqueous solution is approximately 9.5-10.5, making
it alkaline |
| Decomposition Temperature | Decomposes at high temperatures (around 622°C) into sodium
pyrophosphate (Na₄P₂O₇) and sodium metaphosphate (NaPO₃). |
| Hydrate Stability | The hexahydrate tends to effloresce in dry air, losing its water of
crystallization. |
| Property | Strong hygroscopicity; easily absorbs moisture from the air and may
form clumps. |
| Property | STPP has strong chelating ability, forming stable soluble complexes
with metal ions such as calcium, magnesium, and iron in water. |
| Application | This property makes it highly valuable in water treatment,
detergents, and food processing. |
Application of Sodium Tripolyphosphate in industry
1. Detergents and cleaners
Core role: As a washing aid, sodium tripolyphosphate can soften
water quality
and enhance the decontamination ability of detergent.
Specific functions:
Chelate calcium and magnesium ions in water to prevent scale
formation.
Disperse dirt and prevent it from reattaching to clothing or
utensil surfaces.
Maintain the alkaline environment of the detergent and improve the
cleaning effect.
2. Food industry
Application: As a food additive (No. E451), mainly used to improve
food quality.
Specific uses:
Water retaining agent: Used in meat, seafood and other products to
retain moisture and improve taste.
Texture Improvers: Improve texture and stability in dairy products
and processed meats.
Preservatives: Extend the shelf life of food.
3. Water treatment
Application scenario: For industrial water treatment, especially
boiler water and cooling water systems.
Main functions:
Prevent scale formation and improve heat exchange efficiency.
Chelate metal ions to reduce corrosion in pipes and equipment.
4. Ceramics and building materials industry
Application: As a dispersant, used in the preparation of ceramic
paste.
Functions:
Improve the flow of the slurry to make it more uniform.
Improve the strength and surface finish of ceramic products.
5. Textile industry
Application: As an auxiliary agent in textile printing and dyeing
process.
Features:
Improve the dispersion and uniformity of dyes.
Enhance dyeing effect and color fastness.
6. The petroleum industry
Application: For drilling fluids and oilfield chemicals.
Functions:
Adjust the viscosity of drilling fluid to prevent scaling.
Protect equipment and reduce corrosion.
7. Other industrial applications
Metal treatment: used as metal cleaning agent and rust prevention
agent.
Paper industry: as a dispersant for fillers and coatings, improve
paper quality.
Coatings industry: Improve the stability and fluidity of coatings.
8. Environmental issues and alternatives
Environmental impact: Sodium tripolyphosphate may lead to
eutrophication of water bodies,
causing environmental problems.
Substitution trend: With the strengthening of environmental
regulations,
it is gradually replaced by non-phosphorus or low-phosphorus
additives (such as zeolite, polycarboxylate).
Product Advantages of Riel Chemical
The product advantages of Weifang Riel Chemical are mainly
reflected in the following aspects:
1. High quality raw materials
Strict selection of materials: Weifang Rier Chemical uses
high-quality raw materials
to ensure the high performance and stability of products.
Environmental standards: Raw materials meet environmental
requirements to reduce the impact on the environment.
2. Advanced production technology
Leading technology: The use of international advanced production
equipment and processes
to ensure high quality and consistency of products.
Automated production: Fully automated production lines improve
production efficiency and reduce human error.
3. Diversify product lines
A wide range of products: covering many fields, including
industrial chemicals,
environmental protection materials, specialty chemicals, etc., to
meet the needs of different customers.
Customized services: Provide customized product solutions according
to customer needs to enhance customer satisfaction.
4. Strict quality control
Quality management system: Through ISO9001 and other international
quality system certification,
to ensure that every link of products from raw materials to
finished products are strictly tested.
Continuous improvement: regular quality audit and improvement,
constantly improve product quality.
5. Environmental protection and safety
Environmental protection products: Focus on the development of
environmentally friendly products
to reduce environmental pollution.
Safety standards: Products comply with national and international
safety standards to ensure safe use.
6. Market recognition and customer trust
Brand reputation: With high-quality products and good service, we
have won a wide range of market recognition
and customer trust.
Customer feedback: Actively listen to customer feedback, and
constantly optimize products and services.
7. R&d and innovation
R&d team: Has a high-quality R&D team, committed to the
development of new products and technological innovation.
Innovation ability: Constantly launch new products with market
competitiveness and maintain the leading position in the industry.
FAQ
1.What is your payment term?
We can accept T/T and L/C at sight as payment term.
2.Are you able to deliver on time?
Of course! we specialised in this line for many years,
many customer make a deal with me because we can deliver the goods
on time and keep the goods top quality!
3.Do you provide free sample?
Yes, we can provide free sample . You only need to take the express
fee.
4.How about the price?Can you make it cheaper?
We always take the customer’s benefit as the top priority.
Price is negotiable under different conditions, we are assuring you
to get the most competitive price.
5.Can I visit your company and factory in China?
Sure. You are very welcomed to visit our company in Weifang, China.
(We will have someone responsible for picking up and dropping off
at Weifang Airport)
6.What if there is a quality problem?
We have a professional and perfect after-sales service team, timely
for you to deal with all problems.
