Industrial grade Dipotassium hydrogen phosphate trihydrate CAS 16788-57-1

What is Dipotassium Hydrogen Phosphate Trihydrate?

Dipotassium hydrogen phosphate trihydrate is a hydrate of dipotassium hydrogen phosphate . It consists of potassium ions, hydrogen phosphate ions, and three molecules of water of crystallization, and belongs to the potassium phosphate salt family.

Its common chemical formula is:

K2HPO 4⋅3H2O

in:

· K + represents potassium ions;

· HPO42− represents hydrogen phosphate ion ;

· 3H₂O represents three molecules of water of crystallization.

In water, it can dissociate into:

K2HPO4⋅3H2O→2K++HPO42−+3H2O K2HPO 4 ⋅3H2O →2K + +HPO 42− + 3H2O

Judging from the name:

· Dipotassium : meaning it contains two potassium ions;

· Hydrogen phosphate : hydrogen phosphate ion;

· Trihydrate : a compound containing three molecules of water of crystallization.

In simple terms, it is dipotassium hydrogen phosphate trihydrate , which has the same main ion as anhydrous dipotassium hydrogen phosphate, but contains three molecules of water of crystallization.

Industrial-grade Dipotassium hydrogen phosphate trihydrate is usually a white or colorless crystal, crystalline powder or granule . It is easily soluble in water, and its aqueous solution is weakly alkaline, with good pH adjustment and buffering capacity.

Dipotassium hydrogen phosphate trihydrate typically has the following characteristics:

· White or colorless crystalline substance ;

· Easily soluble in water ;

· The aqueous solution is weakly alkaline ;

· It contains potassium and phosphate ;

· It has good buffering capacity ;

· It can be used for pH adjustment ;

· It can provide potassium ions and phosphate ions ;

· It contains three molecules of water of crystallization, and its effective content per unit mass is lower than that of the anhydrous form .

· It can be used in industrial water treatment, cleaning agents, dyeing and finishing, and metal processing systems .

· Industrial-grade products cannot be used in food, medicine, feed, or any ingestion scenario .

What are the main uses of industrial-grade Dipotassium Hydrogen Phosphate Trihydrate?

The application value of industrial-grade Dipotassium hydrogen phosphate trihydrate mainly comes from its functions such as pH adjustment, buffering, providing potassium and phosphate, washing aid, dispersion, metal ion control, and chemical reaction assistance .

1. Industrial water treatment

In industrial water treatment, Dipotassium hydrogen phosphate trihydrate can be used to adjust the pH of water, participate in buffer system design, and serve as a component in compound water treatment agents.

Main function:

· Adjusting the pH of the water;

· Stabilize the acid and alkaline environment of the system;

· Buffer pH fluctuations;

· Interacts with calcium and magnesium ions;

· Helps reduce the risk of scaling;

· Improve the stability of water treatment agent formulations.

Possible applications:

· Boiler water treatment;

· Circulating cooling water;

· Industrial circulating water;

· Process water treatment;

· Industrial cleaning water system.

In practical applications, it is often used in combination with other phosphates, corrosion inhibitors, scale inhibitors, dispersants, or bactericides.

2. Cleaning agents and detergent additives

Dipotassium hydrogen phosphate trihydrate can be used in industrial cleaning agents, equipment cleaning agents, and hard surface cleaners.

Main function:

· Adjust the pH of the cleaning solution;

· Enhance the stability of the cleaning system;

· Soften water;

· Disperse dirt;

· It helps remove oil stains;

· Improve the effectiveness of surfactants;

· Reduce the impact of inorganic salt deposition on cleaning effectiveness.

Possible applications:

· Industrial equipment cleaning;

· Cleaning of metal parts;

· Hard surface cleaning;

· Laboratory glassware cleaning;

· Workshop cleaning agents;

· Cleaning of processing equipment.

It should be noted that phosphorus-containing cleaning agents may be subject to environmental restrictions in some areas, and special attention should be paid to total phosphorus emissions in wastewater.

3. Metal Surface Treatment

In metal processing and surface treatment, it can be used as a pH buffer, cleaning aid, or component of surface treatment formulations.

Main function:

· Assisted metal degreasing;

· Adjust the pH of the treatment solution;

· Improve cleaning uniformity;

· Improve the stability of subsequent coating or electroplating pretreatment;

· Reduce surface contamination;

· Maintain the process window for the treatment fluid.

Possible applications:

· Cleaning of steel parts;

· Aluminum material processing;

· Hardware cleaning;

· Automotive parts processing;

· Pretreatment before electroplating;

· Pre-treatment before spraying;

· Cleaning of machined parts.

4. Textile printing and dyeing auxiliaries

In the textile printing and dyeing process, pH control has a significant impact on dye uptake, color stability, and batch consistency.

Main function:

· Stabilize the pH of the staining bath;

· Improve staining uniformity;

· Reduce color difference;

· Supports dye stability;

· Improve the state of the printing paste;

· Improve process controllability.

Possible applications:

· Dyeing process;

· Printing process;

· Fiber pretreatment;

· Textile auxiliary formulation;

· Dye stabilization system.

5. Fermentation Industry

Dipotassium hydrogen phosphate trihydrate can be used as a potassium source, phosphorus source, and buffer in fermentation media.

Main function:

· Provides potassium;

· Provides phosphorus;

· Buffer medium pH;

· Supports microbial growth;

· Improve fermentation stability;

· Improve batch consistency.

Possible applications:

· Microbial culture;

· Industrial enzyme preparations;

· Organic acid fermentation;

· Amino acid fermentation;

· Bioengineering production;

· Microbial culture expansion.

Note: If fermented products are used in food, medicine, or feed, raw materials that meet the corresponding grade requirements must be selected.

6. Fertilizer and plant nutrient formulations

Dipotassium hydrogen phosphate trihydrate provides potassium and phosphorus, and can therefore be used in some agricultural or horticultural nutrient systems.

Main function:

· Provide potassium source;

· Provide phosphorus source;

· Adjust the pH of the nutrient solution;

· For use in water-soluble fertilizer systems;

· Involved in plant-based nutrient formulations;

· Improve mineral balance.

Possible applications:

· Plant nutrient solution;

· Water-soluble fertilizer;

· Horticultural fertilizers;

· Foliar fertilizer;

· Compound fertilizer;

· Compounding of agricultural chemicals.

However, when used in agriculture, the appropriate potassium phosphate variety should be selected based on the crop, soil, nutrient solution pH, and formulation objectives.

7. Chemical synthesis and materials manufacturing

Industrial-grade Dipotassium hydrogen phosphate trihydrate can be used as a basic inorganic salt in chemical production.

Possible uses:

· Preparation of other potassium salts and phosphates;

· As a raw material for buffer salts;

· Participating in precipitation reactions;

· Catalyst-assisted system;

· Surface modification system;

· Preparation of special inorganic materials;

· Industrial formulation additives.

8. Industrial experiments and process testing

In industrial experiments that do not involve precise analysis, it can be used for process pilot testing, formulation screening, or pH adjustment testing.

Possible uses:

· Industrial formulation pilot test;

· Process development experiments;

· pH adjustment test;

· Non-analytical grade buffer;

· Cleaning agent research and development;

· Water treatment agent research and development;

· Dyeing and finishing auxiliaries test.

If used for precision analysis, biological experiments, or pharmaceutical research and development, reagent-grade, analytical-grade, or higher-grade products should be selected, rather than ordinary industrial-grade products.

Summarize

Dipotassium hydrogen phosphate trihydrate , also known as potassium hydrogen phosphate trihydrate or potassium hydrogen phosphate trihydrate , is a common potassium salt phosphate hydrate with the following chemical formula:

K 2HPO 4⋅3H 2O

It is readily soluble in water, and its aqueous solution is weakly alkaline. It has good pH regulation and buffering capacity and can provide potassium and phosphate ions.

We may come into contact with it indirectly in our daily lives through the following industrial products or production processes:

· Industrial cleaning agents and specialized cleaning products;

· Water treatment system;

· Textiles and printed/dyed products;

· Metal products and surface-treated products;

· Fertilizers and gardening products;

· Fermentation industry and bioengineering products;

· Chemical products and inorganic materials.

The main uses of industrial-grade Dipotassium hydrogen phosphate trihydrate include:

· Industrial water treatment;

· Cleaning agents and detergents;

· Metal surface treatment;

· Textile printing and dyeing auxiliaries;

· Fermentation industry;

· Fertilizer and plant nutrient formulas;

· Chemical synthesis and materials manufacturing;

· Industrial experiments and process testing.

Finally, it must be emphasized that industrial-grade Dipotassium hydrogen phosphate trihydrate is for industrial use only and should not be used in food, beverages, pharmaceuticals, animal feed, pet food, or any human/animal ingestion scenario. In practical applications, its trihydrate properties should be clearly defined, the effective content conversion should be accurate, and attention should be paid to formulation compatibility, operational safety, storage conditions, and phosphorus-containing wastewater discharge requirements.