CAS 7758.29.4 Highly Purified Alkaline Ph STPP For Fiber Bleach
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. |
The development prospect of Sodium Tripolyphosphate
1. Technological innovation and upgrading
Production process optimization:
By improving the production process, the energy consumption
and pollution in the production process of sodium tripolyphosphate
can be reduced,
and its environmental protection can be improved.
Develop high value-added sodium tripolyphosphate derivative
products and expand its application fields.
Exploration of new application fields:
In the field of new energy and new materials, explore new uses of
sodium tripolyphosphate,
such as battery materials, catalysts and other applications.
2. Regional market differences
Developed countries:
Environmental regulations are strict, the use of sodium
tripolyphosphate is greatly restricted,
and the market demand is gradually declining.
The market share of phosphorus-free or low-phosphorus alternatives
continues to expand.
Developing countries:
Environmental regulations are relatively loose,
and sodium tripolyphosphate still has a large market demand in
detergent, food and other fields.
With increased environmental awareness, there may be a gradual
transition to phosphorus-free alternatives in the future.
3. Future development direction
Environmentally friendly sodium tripolyphosphate:
Develop low - or phosphorus-free sodium tripolyphosphate
alternatives to meet environmental requirements.
Through technical improvement, the impact of sodium
tripolyphosphate on the environment can be reduced.
High value-added products:
Develop sodium tripolyphosphate products with high purity and
special functions to meet the needs of the high-end market.
Expand its application in new energy, new materials and other
fields.
Circular economy:
Reduce resource waste and environmental pollution by recycling and
reusing sodium tripolyphosphate.
Riel Chemical product advantages
Riel Chemical is a company located in Weifang, Shandong Province,
focusing on the development,
production and sales of chemical products. The advantages of its
products are mainly reflected in the following aspects:
Advanced technology
Riel Chemical has advanced research and development team and
production equipment,
can continue to introduce high-performance, high-quality chemical
products to meet the needs of different industries.
Product diversification
The company has a rich product line, covering many fields, such as
environmentally friendly coatings,
industrial auxiliaries, specialty chemicals, etc., to provide
customers with comprehensive solutions.
Environmental protection and safety
Riel Chemical focuses on environmental protection and safe
production,
products comply with national and international environmental
standards,
and is committed to reducing the impact on the environment.
Customized service
The company provides customized services to adjust product
formulation
and performance according to customer needs to ensure that the
requirements of specific application scenarios are met.
Ideally located
Weifang is located in Shandong Peninsula, convenient
transportation, logistics developed,
easy to quickly transport products to all parts of the country and
the international market.
Quality assurance
Rier Chemical strictly implements the quality management system
to ensure that every link of products from raw materials to
finished products is strictly tested to ensure quality stability.
Perfect after-sales service
The company provides comprehensive technical support and
after-sales service
to help customers solve problems in use and ensure customer
satisfaction.
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.
