Trisodium Phosphate (TSP)
Chemical Appearance:
Trisodium phosphate, abbreviated as TSP, is a crystalline substance that appears as a white, granular powder.
Applications:
Trisodium phosphate is actively utilized in various applications across different industries:
– Cleaning Agent: It serves as a powerful cleaning agent, commonly used in household cleaning solutions and industrial cleaners.
– Painting and Surface Preparation: Applied as a degreaser and surface preparation agent before painting, ensuring proper adhesion of coatings.
– Food Industry: Used as a food additive, particularly in certain food products, where it acts as a buffering agent and emulsifier.
– Water Treatment: Employed in water treatment processes to adjust pH levels and soften water.
– Textile Industry: Utilized in the textile industry for fabric dyeing and finishing processes.
– Metal Treatment: Applied in metal treatment processes, such as metal cleaning and phosphating.
– Tanning Industry: Used in the tanning industry during leather processing.
– Flux in Soldering: Acts as a flux in soldering applications to facilitate the soldering process.
– Photography: Historically used in photography as a developer.
Specification
| inspection standard | manufacturer’s standard | |
| inspecting item | Standard requirements | The measured results |
| content,% | ≥98.5 | 98.7 |
| surface | Colorless or white crystals | White crystallization |
| Clarification test / No | ≤2 | <2 |
| free alkali,% | ≤0.8 | 0.2 |
| disodium salt,% | <0.3 | 0.1 |
| Chloride (C1),% | <0.002 | <0.002 |
| Sulphate (S04),% | <0.005 | <0.005 |
| nitrogen pool (N),% | <0.001 | <0.001 |
| iron (Fe),% | ≤0.0003 | <0.0003 |
| arsenic (As),% | <0.0001 | <0.0001 |
| Heavy metals (in Pb),% | <0.0005 | <0.0005 |
