Industrial grade Sodium phosphate monobasic 7558-80-7

What is Sodium Phosphate Monobasic?

Sodium phosphate monobasic , also known as sodium dihydrogen phosphate , is an inorganic phosphate composed of sodium ions and dihydrogen phosphate ions. It belongs to the acid salt family of sodium phosphates.

The chemical formula for anhydrous sodium dihydrogen phosphate is usually:

NaH₂PO₄

in:

· Na+ and Na + represent sodium ions;

· H2PO4−H 2 PO 4 − represents the dihydrogen phosphate ion.

In water, it can dissociate into:

NaH2PO4→Na++H2PO4− NaH 2 PO 4 → Na + +H 2 PO 4−

Judging from the English name:

· Sodium indicates sodium;

· Phosphate means phosphate;

· Monobasic indicates a single base, which usually corresponds to dihydrogen phosphate;

· Monosodium Phosphate refers to monosodium phosphate.

Industrial-grade Sodium Phosphate Monobasic typically has the following characteristics:

· White or off-white powder/granules/crystals ;

· Easily soluble in water ;

· The aqueous solution is acidic or weakly acidic ;

· It can provide sodium ions and dihydrogen phosphate ions ;

· It has acidity regulating ability ;

· It can participate in phosphate buffer systems ;

· It can interact with metal ions ;

· It can be used for cleaning, descaling, metal treatment, and water treatment ;

· It can be used in textile printing and dyeing, chemical synthesis, and materials processing ;

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

What are the main uses of industrial-grade Sodium Phosphate Monobasic?

The application value of industrial-grade Sodium Phosphate Monobasic mainly comes from its water solubility, acidity, pH adjustment ability, buffering capacity, phosphate reactivity, and interaction with metal ions .

1. pH adjusters and buffers

Sodium Phosphate Monobasic is an acidic phosphate that can be combined with other phosphates such as Sodium Phosphate Dibasic to form a buffer system.

Main function:

· Adjust the pH of the system;

· Stabilize acid and alkaline environments;

· Buffer pH fluctuations;

· Improve the stability of the reaction system;

· Improve the repeatability of industrial processes.

Possible applications:

· Industrial formulation;

· Cleaning agent;

· Water treatment;

· Dyeing and finishing processes;

· Chemical reaction system;

· Industrial experimental buffer solution.

2. Industrial cleaning agents

In industrial cleaning, Sodium Phosphate Monobasic can be used as an acidic salt, pH adjuster, or buffer component.

Main function:

· Stabilize the pH of the cleaning solution;

· It helps remove inorganic dirt;

· Improve surfactant performance;

· Reduce the impact of mineral deposition;

· Improve the stability of the cleaning system;

· Supports mild acidic cleaning environments.

Possible applications:

· Equipment cleaning;

· Pipe cleaning;

· Metal cleaning;

· Hard surface cleaning;

· Workshop maintenance and cleaning;

· Industrial descaling formula.

3. Metal Surface Treatment

Sodium Phosphate Monobasic can be used in metal surface treatment solutions for pH adjustment, cleaning, rust removal, or phosphate treatment.

Main function:

· Adjust the acidity of the treatment solution;

· Assists in cleaning metal surfaces;

· Improve the environment for rust and scale removal;

· Provides conditions for phosphating or pre-coating treatment;

· Improves the adhesion of subsequent coatings;

· Stabilized metal treatment formulation.

Possible applications:

· Pretreatment before electroplating;

· Pre-treatment before spraying;

· Metal cleaning;

· Rust removal and cleaning;

· Hardware processing;

· Automotive parts processing;

· Surface treatment of steel structures.

4. Water treatment and boiler treatment

In the field of water treatment, phosphates are commonly used for pH adjustment, buffering, scale inhibition, precipitation control, and system stabilization. Sodium Phosphate Monobasic can be used as a compound component.

Main function:

· Adjusting the pH of the water;

· Participating in phosphate buffer systems;

· It reacts with calcium and magnesium ions;

· Aids in controlling limescale;

· Improve the stability of water treatment agents;

· Supports pH adjustment in wastewater treatment.

Possible applications:

· Industrial circulating water;

· Boiler water treatment;

· Cooling water system;

· Process water;

· Industrial wastewater;

· Treatment of cleaning waste liquid.

5. Textile printing and dyeing auxiliaries

In textile printing and dyeing processes, Sodium Phosphate Monobasic can be used to adjust the pH of the dye bath or stabilize the dyeing and finishing system.

Main function:

· Control the pH of the dye bath;

· Stabilize the dye system;

· Reduce color difference;

· Improve staining uniformity;

· Improve process repeatability;

· Supports the stability of printing pastes.

Possible applications:

· Dyeing process;

· Printing process;

· Fiber pretreatment;

· Post-finishing processes;

· Textile auxiliary formulation.

6. Chemical synthesis and inorganic materials

Industrial-grade Sodium Phosphate Monobasic can be used as a chemical raw material to participate in the preparation of other phosphates or inorganic materials.

Possible uses:

· Preparation of other sodium phosphate salts;

· As a phosphorus source;

· Participating in precipitation reactions;

· Catalyst-assisted system;

· Additives for ceramics and glass;

· Surface modified materials;

· Inorganic material synthesis;

· A mixture of cleaning agents and water treatment agents.

7. Ceramics, glass and materials processing

In the field of materials processing, Sodium Phosphate Monobasic can be used as a phosphate additive, pH adjuster, or reaction component.

Main function:

· Adjust the pH of the slurry;

· Improve the dispersion of inorganic powders;

· Incorporate into ceramic or glass formulations;

· Introduced into the material system as a phosphorus source;

· Improve material processing stability;

· Assisted surface modification.

Possible applications:

· Ceramic preparation;

· Glaze processing;

· Specialty glass;

· Inorganic powder dispersion;

· Material modification;

· Industrial slurry systems.

Summarize

Sodium phosphate monobasic , commonly known as sodium dihydrogen phosphate , is also called monosodium phosphate or acid sodium phosphate . It is a common acid sodium phosphate salt. Common forms include:

· Anhydrous substance: NaH2PO4

· Monohydrate: NaH2PO4⋅H2O

· Dihydrate: NaH2PO4⋅2H2O

It is readily soluble in water, and its aqueous solution is acidic or weakly acidic. In industry, it is mainly used for:

· pH adjustment and buffering;

· Industrial cleaning agents;

· Metal surface treatment;

· Water treatment and boiler treatment;

· Textile printing and dyeing auxiliaries;

· Chemical synthesis and inorganic materials;

· Ceramics, glass and materials processing.

In our daily lives, we may indirectly come into contact with Sodium Phosphate Monobasic through the following scenarios:

· Industrial cleaning agents and specialized cleaning products;

· Metal products and surface treatment;

· Textiles and dyeing/printing processing;

· Industrial water treatment systems;

· Ceramics, glass, and inorganic materials;

· Coatings, corrosion protection and surface protection materials;

· Chemical products and industrial research and development.

Finally, it must be emphasized that industrial-grade Sodium Phosphate Monobasic is only for industrial production, materials processing, and chemical systems. It cannot be used in food, beverages, pharmaceuticals, animal feed, pet food, or any human/animal ingestion scenario. In practical use, it is essential to confirm whether the product is anhydrous, monohydrate, or dihydrate, and to convert the concentration based on the effective content. Simultaneously, attention should be paid to formulation compatibility, operational safety, moisture protection during storage, and requirements for phosphorus-containing wastewater discharge.