Tetrapotassium Pyrophosphate K4P2O7
| HS Code | 768865 |
| Name | Tetrapotassium Pyrophosphate K4P2O7 |
| Chemical Formula | K4P2O7 |
| Molar Mass | 330.33 g/mol |
| Appearance | White, granular or crystalline powder |
| Solubility In Water | Soluble |
| Ph In Aqueous Solution | Basic |
| Density | 2.534 g/cm³ |
| Melting Point | 1109 °C |
| Boiling Point | Decomposes |
| Hygroscopicity | Hygroscopic |
| Use | Used in food industry as a sequestrant, in detergents for water softening |
As an accredited Tetrapotassium Pyrophosphate K4P2O7 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Tetrapotassium Pyrophosphate K4P2O7 is packaged in thick paper bags or wooden boxes, lined with moisture-proof paper, and sealed tightly. The content of each box and bag depends on the needs and the product name is clearly marked. |
| Storage | When storing Tetrapotassium Pyrophosphate K4P2O7, choose a dry warehouse, away from moisture and acid and alkali. The stacking should not be too high to facilitate ventilation and inspection. |
| Shipping | When transporting Tetrapotassium Pyrophosphate K4P2O7, it needs to be protected from rain, handled gently, prevent the packaging from being damaged, and separated from other items. |
Competitive Tetrapotassium Pyrophosphate K4P2O7 prices that fit your budget—flexible terms and customized quotes for every order.
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Historical Development
The origin of Tetrapotassium Pyrophosphate K4P2O7 can be traced back to the early days of chemistry. In the past, many scholars continued to study phosphate potassium compounds and explore their properties and uses. At the beginning, the preparation method was simple and the product was impure. However, after years of changes, countless craftsmen and scholars have worked hard, repeatedly tested and improved the process. From the control of the temperature to the ratio of raw materials, everything has become more and more accurate. Today, the process is mature and the product quality is stable. It occupies an important position in many fields such as industry and food, and its application is becoming more and more extensive.
Product Overview
Tetrapotassium Pyrophosphate K4P2O7 is a snow-white crystalline powder or granule, odorless and tasteless. It dissolves in water, and its aqueous solution is alkaline. In industrial production, it can be used as a chelating agent and dispersant to help materials mix evenly; in food processing, it can be used as a quality improver and moisture retainer to improve the taste and extend the shelf life. It is indeed an indispensable good product in the chemical industry.
Physical & Chemical Properties
In terms of its physical properties, Tetrapotassium Pyrophosphate K4P2O7 has a high melting point, a fine texture like powder, moderate hygroscopicity, and a slight caking state when left in the air for a long time. Its chemical properties are relatively stable, but when it encounters metal ions, it can undergo complexation reactions to form stable complexes; in aqueous solutions, it can also slowly hydrolyze to change the pH of the solution.
Technical Specifications & Labeling
Technical Specifications has very strict requirements for Tetrapotassium Pyrophosphate K4P2O7. The main content (measured in K4P2O7) must meet the specified standards without any deviation; the content of impurities such as chlorides and heavy metals is strictly limited and must not exceed the standard. When labeling, the full name of the product, specification model, manufacturer, production date, and implementation standards are clearly marked in a conspicuous place on the package in clear fonts, and warnings such as "moisture-proof" and "keep away from acids and alkalis" are also marked in eye-catching signs for easy access and supervision.
Preparation Method
Phosphoric acid and potassium hydroxide are often used as raw materials for the preparation of Tetrapotassium Pyrophosphate K4P2O7. First, the two are placed in a special container in a precise proportion, and then heated to a high temperature. Initially, the two react with each other to generate an intermediate product; then, after polymerization and dehydration, the finished product is obtained. The entire process requires precise control of the temperature, time, and ratio of raw materials, just like a skilled craftsman carving an object. If you are not careful, the quality of the product will be affected.
Chemical Reactions & Modifications
Tetrapotassium Pyrophosphate K4P2O7 can undergo hydrolysis in aqueous solution to generate products such as potassium dihydrogen phosphate, thereby adjusting the composition of the solution. When it meets metal ions, it can form a stable complex, which is often used for the separation and purification of metal ions. By adding specific reagents or changing the reaction conditions, it can be modified to meet the special needs of different industries.
Synonyms & Product Names
The Synonyms of Tetrapotassium Pyrophosphate K4P2O7 include tetrapotassium pyrophosphate, etc. Although the names are different in different documents, industries or regions, they all refer to this compound.
Safety & Operational Standards
When using and operating Tetrapotassium Pyrophosphate K4P2O7, operators must wear protective gloves, masks, goggles and other equipment to prevent the product from contacting the skin and splashing into the eyes. If accidentally contaminated, rinse immediately with plenty of clean water and seek medical treatment if necessary. Storage and transportation must follow established procedures, keep the workplace well ventilated, and prepare sufficient fire-fighting facilities to prevent unexpected changes.
Application Area
In the food industry, Tetrapotassium Pyrophosphate K4P2O7 can make meat products tender and juicy, make baked goods soft and delicious, and extend the shelf life of various foods; in the industrial field, in the electroplating industry, it helps to make the coating uniform; in the printing and dyeing industry, it makes the color firm; in the detergent industry, it enhances the decontamination power, and its application is extremely wide.
Research & Development
Currently, the research and development of Tetrapotassium Pyrophosphate K4P2O7 is in the ascendant. Researchers are trying their best to optimize the preparation process, reduce energy consumption, and reduce pollution; they are exploring its application potential in emerging fields such as new energy batteries and new materials, hoping to expand its application and increase the added value of products.
Toxicity Research
Toxicity Research shows that Tetrapotassium Pyrophosphate K4P2O7 is mildly toxic and has little harm to the human body and the environment under normal use. However, if it is ingested in excess or exposed to high-concentration products for a long time, it may still affect human health, so when using it, it is necessary to strictly abide by safety regulations.
Future Prospects
The future prospects of Tetrapotassium Pyrophosphate K4P2O7 are broad. With the development of food, industry and other industries, the demand for it will continue to grow. In addition, with the continuous innovation of scientific research, its application field is expected to be further expanded, the production process will be more advanced, and the product quality and performance will continue to improve.
Where to Buy Tetrapotassium Pyrophosphate K4P2O7 in China?
As a trusted Tetrapotassium Pyrophosphate K4P2O7 manufacturer, we deliver:
Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements.
Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery.
Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
As a leading Tetrapotassium Pyrophosphate K4P2O7 supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
How is Tetrapotassium Pyrophosphate K₄P₂O₇ made?
This substance is mostly made of potassium dihydrogen phosphate, which is calcined and polymerized. Place it in a pottery pot and slowly bake it over a low fire until the water gradually escapes, then adjust the fire to calcine it so that the molecules are bonded, and then white powder Tetrapotassium Pyrophosphate K₄P₂O₇ is obtained. The process is like refining elixir. If the fire is uneven, the quality will be poor. The furnace attendant needs to observe it from time to time, and wait until the color is pure and without impurities, and then a good tool can be obtained. The ancient craftsmen must follow the weather and the location to create things. This also requires the right temperature and humidity to achieve success.
What is the appearance of Tetrapotassium Pyrophosphate K₄P₂O₇?
It looks like a white powder, light and fine, like the end of frost and snow, without the slightest impurity. It feels smooth, and it is easy to loosen when twisted. The best ones are those without lumps. It likes water and dissolves immediately when put into water. The aqueous solution is strongly alkaline. It is safe with air at room temperature, but it reacts easily with acid to produce phosphoric acid and potassium salt. If placed in a humid place, it will absorb moisture and clump after ten months, so it is necessary to strictly follow the drying rules. When it comes into contact with metals, except for a few types such as aluminum and zinc, it is mostly non-corrosive, so you can be at ease when storing it.
Where can Tetrapotassium Pyrophosphate K₄P₂O₇ be applied?
In industry, it can be used as a detergent additive to help decompose oils and make utensils clean; in the electroplating industry, it can make the metal coating uniform and bright, like a mirror effect. In the food industry, it can be used as an emulsifier and added to meat products to make the meat tender and not burnt after long cooking. In the leather industry, it can be used to remove hair and soften, making the leather delicate and flexible. When printing and dyeing, it can fix the color and make the fabric not easy to fade after washing and drying. All these uses depend on its ability to blend, so it is valued by many industries.
How should Tetrapotassium Pyrophosphate K₄P₂O₇ be stored?
It should be stored in a sealed pottery jar or thick plastic bag, and the lid should be airtight to prevent moisture from entering. It should be placed in a high, dry and cool place, away from direct sunlight and next to the stove. When stacking, it should be half a foot off the ground, with wooden boards underneath to prevent moisture, and several inches away from the wall to prevent leakage. If it absorbs moisture and clumps accidentally, it can be used after grinding, but its effectiveness is slightly reduced. In ancient times, good places must be chosen for storage, and this is also the case. Keep it dry so that it can last for years without spoiling.
What is the difference between Tetrapotassium Pyrophosphate K₄P₂O₇ and Sodium Pyrophosphate?
Although both are pyrophosphates, they contain different metal ions and have different properties. Tetrapotassium Pyrophosphate K₄P₂O₇ contains potassium, and its aqueous solution is more alkaline; sodium pyrophosphate contains sodium, and its alkalinity is slightly weaker. In terms of usage, the former is mostly used in industrial electroplating and leather processing, while the latter is more inclined to food and detergents. Like two brothers, although they come from the same source, they have their own specialties. Users should distinguish their properties in order to make the best use of them.
