Disodium Hydrogen Phosphate Dodecahydrate

Disodium Hydrogen Phosphate Dodecahydrate (DSP, CAS No. 10039-32-4) is an important inorganic compound with the chemical formula of Na₂HPO₄-12H₂O and molecular weight of 358.142. It is a colorless, crystalline or white powder at room temperature. It is a colorless crystal or white powder at room temperature, widely used in food processing, pharmaceutical, water treatment, laboratory analysis and industrial preparation and other fields. Relying on the production advantages of Shandong Jining New Material Industrial Park, Shandong Jiurunfa Chemical Technology Co., Ltd. focuses on the research, development, production and sales of high-purity DSP, the products comply with international standards (such as ISO, Reag. Ph Eur), to meet the needs of different industries for refinement.

Product Characteristics

Disodium hydrogen phosphate (dodecahydrate) is a colorless monoclinic crystal or white crystalline powder with relative density of 1.52 and melting point of 35℃. It is soluble in water, insoluble in ethanol, aqueous solution is weakly alkaline, 3.5% aqueous solution pH value of 9.0 ~ 9.4. In the air, disodium hydrogen phosphate (dodecahydrate) is easy to weathering, gradually lose the water of crystallization, heated to 100 ℃ lost all the water of crystallization to become anhydrous, and continue to be heated to 250 ℃, then decomposed into sodium pyrophosphate.

Production process

The production process of disodium hydrogen phosphate (dodecahydrate) mainly includes the neutralization reaction between wet phosphoric acid or hot phosphoric acid and edible soda ash or sodium hydroxide, as well as the subsequent steps of removing impurities, decoloration, adjusting pH value, filtration and drying. Shandong Jiurunfa Chemical Technology Co., Ltd. adopts advanced production technology and equipment to ensure that the quality of products is stable and reliable, and meets the relevant standards at home and abroad as well as the needs of customers.

Specifically, purified wet phosphoric acid or hot phosphoric acid is neutralized and reacted with appropriate amount of edible soda ash or sodium hydroxide to produce disodium hydrogen phosphate solution. Then, impurities in the solution are removed by a step of removing impurities, and then the whiteness of the product is improved by a decolorization process. Then, the pH value of the solution is adjusted to a suitable range, the suspended matter is removed by filtration, and finally it is cooled, crystallized and dried to obtain the finished product of disodium hydrogen phosphate (dodecahydrate).

Application field

With its unique physicochemical properties and wide range of applications, disodium phosphate (dodecahydrate) plays an important role in many industries.

1. Food industry: as a quality improver, disodium phosphate (dodecahydrate) can improve the ability of food complexing metal ions, pH value and ionic strength, thus improving the adhesion and water retention of food. China's provisions of disodium hydrogen phosphate (dodecahydrate) can be used for condensed milk, the maximum use of 0.5g/kg; at the same time, it can also be used for complex baking powder, according to the production needs of the appropriate amount of use.

   2. Printing and dyeing industry: Disodium hydrogen phosphate (dodecahydrate) is used as stabilizer for hydrogen peroxide bleaching, which can improve the bleaching effect and reduce fabric damage. In addition, it can also be used as a filler for rayon to enhance the strength and elasticity of silk.

   3. Pharmaceutical field: Disodium hydrogen phosphate (dodecahydrate) is the raw material for the manufacture of sodium pyrophosphate and other phosphates, and is also the culturing agent of monosodium glutamate, erythromycin, penicillin, streptomycin and other drugs. In oral preparations, it is used as an excipient, but attention should be paid to possible side effects such as gastrointestinal disorders.

   4. Other fields: Disodium hydrogen phosphate (dodecahydrate) is also used in electroplating, tanning and other industries, as a boiler water softener, fabric weight gainer, fire retardant, etc. It has a wide range of application prospects.

Shandong Jiurunfa Chemical Technology Co., Ltd. adopts advanced production technology and testing technology to ensure the quality of the products, the production of disodium phosphate dodecahydrate (DSP) with excellent quality, a wide range of application scenarios and flexible service mode, become the preferred partner of the food, pharmaceutical, environmental protection and other industries. For further product details or to obtain samples, please contact us.

sodium phosphate dibasic anhydrous synonym

sodium dihydrogen phosphate medical use

dibasic sodium phosphate other name

sodium phosphate dibasic not dissolving

dibasic sodium phosphate uses

anhydrous dibasic sodium phosphate formula

disodium phosphate side effects

sodium phosphate dibasic anhydrous fisher