Disodium Phosphate SDP
| HS Code | 623454 |
| Chemical Formula | Na2HPO4 |
| Molar Mass | 141.96 g/mol |
| Appearance | white, granular or crystalline powder |
| Odor | odorless |
| Solubility In Water | freely soluble |
| Ph Of 1 Solution | 8.0 - 11.0 |
| Density | 1.7 g/cm³ |
| Melting Point | 243 - 245 °C |
| Boiling Point | decomposes |
| Hygroscopicity | moderately hygroscopic |
As an accredited Disodium Phosphate SDP factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Disodium Phosphate SDP is packaged in paper bags, lined with plastic film, and sealed with ropes. The weight of each bag is determined according to needs, and most of them are standard numbers to ensure tightness. |
| Storage | Disodium Phosphate SDP should be stored in a dry warehouse, away from moisture, acid and alkali, and the stacking should not be too dense for easy inspection. |
| Shipping | Disodium Phosphate SDP should be fully protected from the sun and rain, and should be handled gently. Do not damage the packaging to avoid loss. |
Competitive Disodium Phosphate SDP prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Historical Development
The development of Disodium Phosphate SDP is closely linked to the progress of the food industry. In the early days, people discovered its unique properties in the process of exploring food additives, and began to study its preparation methods. From laboratory tests to industrial production, after years of exploration and technological breakthroughs, the production process has continued to mature, and the product has gradually been widely used in the food industry.
Product Overview
Disodium Phosphate SDP is a white crystalline powder or granule, easily soluble in water. It can be used as an acidity regulator, buffer, and moisture retainer in food processing. It can effectively adjust the pH of food and improve the texture and stability of food. It is one of the commonly used additives in the food industry.
Physical & Chemical Properties
In terms of physical properties, Disodium Phosphate SDP is a white crystalline powder or granule, odorless, slightly salty, easily soluble in water, and its aqueous solution is weakly alkaline. In terms of chemical properties, it can react with acids and bases, and can form complexes with metal ions. In the food system, it can adjust the pH value to affect the chemical balance and physical properties of food.
Technical Specifications & Labeling
Technical Specifications clearly stipulates the main content, impurity content, moisture content, pH value and other technical indicators of Disodium Phosphate SDP. During labeling, the packaging must clearly mark the product name (Disodium Phosphate SDP), specifications, manufacturer, production date, shelf life, implementation standards, usage instructions and safety warnings to ensure the standardization and safety of product use.
Preparation Method
Disodium Phosphate SDP is usually prepared with phosphoric acid and sodium carbonate as raw materials. Phosphoric acid is slowly added to the sodium carbonate solution, and the reaction temperature, time and material ratio are controlled to carry out a neutralization reaction. After the reaction is completed, the finished Disodium Phosphate SDP is obtained through concentration, crystallization, separation, drying and other processes. The reaction conditions must be strictly controlled throughout the preparation process to ensure that the product quality meets the standards.
Chemical Reactions & Modifications
In the food ecosystem, Disodium Phosphate (SDP) is capable of engaging in a diverse array of chemical interactions. Within baked confections, it has the ability to regulate the pH level of dough, thereby exerting an influence on yeast fermentation processes; in meat products, it improves the water-holding capacity of meat through chelating with metal ions. Through the process of chemical alteration, its physical and chemical attributes can be modified, thus broadening its scope of application across various food sectors.
Synonyms & Product Names
Disodium Phosphate SDP is also known as disodium phosphate. In the food industry and related fields, these two names are widely used to facilitate the description and communication of the product in different scenarios.
Safety & Operational Standards
undergo verification and accreditation to confirm it poses no harm to human health within the stipulated usage parameters. Operational Protocols encompass every dimension—such as production, warehousing, logistics, and application—mandating strict adherence to standardized operational guidelines to ensure consistent product quality, safety, and trustworthiness.
Application Area
Disodium Phosphate (SDP) finds extensive use in the food industry. In dairy products, it can prevent the aggregation of milk proteins; in beverage production, it functions as a buffering agent to regulate flavor and stability; in meat and flour processing, it improves product texture and water-binding capacity, thereby enhancing food quality and taste.
Research & Development
Currently, the research and development directions of Disodium Phosphate SDP include optimizing production processes, improving product purity and yield; exploring its new applications in special foods and functional foods; and studying its synergy with other additives to develop better quality food products.
Toxicity Research
A large number of Toxicity Research studies have confirmed that within the prescribed dosage, Disodium Phosphate SDP has no toxic effects on the human body and is safe. Normal consumption of foods containing this additive will not have adverse effects on human health.
Future Prospects
In times ahead, Disodium Phosphate (SDP) is set to maintain its pivotal role in the food sector. Alongside the advancement of food technology and the evolution of consumer demands, its manufacturing processes will become more eco-friendly and efficient, with product performance undergoing further optimization. It is anticipated to find applications in a broader range of novel food products and high-end food domains, injecting fresh momentum into the development of the food industry.
Where to Buy Disodium Phosphate SDP in China?
As a trusted Disodium Phosphate SDP 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 Disodium Phosphate SDP supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
How to prevent Disodium Phosphate SDP from deteriorating during storage?
Although Disodium Phosphate SDP is relatively stable, it is easy to deteriorate if stored improperly. To preserve its quality, first choose a dry, ventilated, and cool place. If you store delicacies in a dark room, avoid moisture and heat sources. In the warehouse, it should not be mixed with acids, alkalis, and toxic and harmful substances to prevent their interaction and accidents. The packaging must be tight, usually using sealed woven bags or kraft paper bags, lined with food-grade film to block moisture from the outside. And check it regularly to see if there are any signs of caking or discoloration. If there are any abnormalities, deal with them in time. In this way, Disodium Phosphate SDP can be stored for a long time without deterioration.
How is Disodium Phosphate SDP used in food processing?
Disodium Phosphate SDP has a wide range of uses in food processing. In dairy products, it can prevent milk protein from agglomerating, making the emulsion uniform and delicate, with a mellow taste, just like a skilled woman blending, making the milk fat blend without dispersing. In beverage production, it acts as a buffer to adjust the taste and stability, just like a musician tuning the instrument, making the sweet and sour taste just right, and preventing the beverage from becoming turbid and precipitating, keeping it clear and bright. In meat and pasta processing, it can improve the texture and water retention, making the meat tender and juicy, and the pasta soft and chewy, just like a good chef cooking, giving the ingredients a different flavor. When using it, according to different foods and different needs, accurately control the amount and timing of addition to show its full potential.
What is the key to preparing Disodium Phosphate SDP?
To prepare Disodium Phosphate SDP, phosphoric acid and sodium carbonate are often used as materials. The key lies in accurately controlling the reaction. First, slowly add phosphoric acid into the sodium carbonate solution, like a stream flowing into a river or sea. This process requires strict control of the material ratio. If there is one more, the acid will be too much, and if there is one less, the alkaline will be too much, and it will be difficult to produce a good product. At the same time, the reaction temperature and time must be just right. If the temperature is too high, the product will easily decompose; if the time is insufficient, the reaction will be incomplete. After the reaction is completed, it will go through the processes of concentration, crystallization, separation, and drying. Each link is closely linked. Concentration requires controlled heat, crystallization requires observation of morphology, separation requires purity, and drying requires moderation. Only by fine operation throughout the process, like a craftsman carving a beautiful jade, can high-quality Disodium Phosphate SDP be produced.
Is there any taboo when Disodium Phosphate SDP is mixed with other substances?
There are indeed taboos when Disodium Phosphate SDP is mixed with other substances. Because it has certain chemical activity, it cannot be mixed with strong acidic substances. When the two meet, it is like cooking oil in a raging fire, and it is easy to react violently, not only losing its efficacy, but also potentially dangerous. When mixed with some metal salts, caution is also required, as precipitation may be generated, changing the properties of the system and affecting the effect of use. In addition, alkaline substances should not be mixed with it. Acids and bases are in conflict and consume each other, which greatly reduces the performance. Therefore, before mixing, the physical properties should be carefully checked, or a small test should be conducted first, such as a doctor testing a prescription. After ensuring that there is no risk, the mixture can be used to avoid mistakes.
How to ensure safety when using Disodium Phosphate SDP?
When using Disodium Phosphate SDP, safety is the first priority. Operators must wear protective gloves, masks and other equipment, such as armor and protective gear to prevent contact with the skin and eyes. If careless, rinse with plenty of clean water quickly, such as flooding to cleanse the dirt, and then seek medical attention as appropriate. During storage and transportation, follow relevant regulations, keep the packaging intact, keep away from fire and heat sources, and do not mix with dangerous goods. Keep the workplace well ventilated and prepare fire-fighting facilities, such as building a city fortification. The dosage should be strictly followed according to the standard and should not be increased or decreased at will. Excessive use may be harmful to the human body and the environment. Only in this way can the effect of Disodium Phosphate SDP be exerted while keeping people and things safe.
