1. Product Introduction & Main Application
Arnico’s Sodium Tripolyphosphate (STPP) is a white, water-soluble powder or granule, recognized as the primary “Builder” in the detergent industry. With its exceptional ability to soften water (by sequestering calcium and magnesium ions), emulsify fats, and prevent soil redeposition, this substance multiplies the cleaning power of laundry and automatic dishwashing detergents many times over.
2. Technical Specifications
| Technical Parameter | Detergent Grade | Technical / Water Treatment Grade | Unit |
|---|---|---|---|
| Purity (as Na₅P₃O₁₀) | ≥ 94.0 | ≥ 90.0 | % |
| Phosphorus Pentoxide (P₂O₅) | ≥ 57.0 | ≥ 56.5 | % |
| Tripolyphosphate Phase I (High Phase I) | ≥ 40 | ≥ 30 | % |
| Water Insoluble Matter | ≤ 0.1 | ≤ 0.5 | % |
| Iron (Fe) | ≤ 50 | ≤ 100 | ppm |
| pH (1% Solution) | 9.5 – 10.0 | 9.5 – 10.5 | – |
3. Features & Benefits
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Superior Water Softening: By forming a soluble complex with calcium and magnesium ions, it eliminates water hardness, multiplying the efficiency of surfactants.
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High Phase I Content: Provides a faster hydration and dissolution rate, preventing white residue from remaining on fabrics.
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Excellent Dispersing Power: Prevents detached grease and soil particles from reattaching to the fabric surface.
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Ideal Alkaline Buffer: Maintains an optimal washing pH in the 9.5 to 10 range, which is essential for maximum cleaning performance.
4. Industrial Applications
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Detergent Industry: The primary builder in laundry powders, automatic dishwashing detergents, and industrial cleaners.
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Water Treatment: A corrosion and scale inhibitor in cooling water systems and industrial boilers.
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Food Industry: An emulsifier, moisture retainer, and texture improver in the processing of meat and seafood.
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Ceramics & Tile Industry: A deflocculant in ceramic slurries to reduce water and energy consumption.
5. Safety & Handling
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MSDS (Material Safety Data Sheet): This material is a mild skin and eye irritant, and its dust causes respiratory tract irritation. The Arnico MSDS file is available for more information.
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Storage Conditions: Store in sealed bags in a dry, cool place. It is highly hygroscopic and will cake on contact with moisture.
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Personal Protective Equipment (PPE): When decanting the powder, the use of a dust mask and safety goggles is recommended.
6. Quality Assurance & COA
Arnico STPP shipments are supplied with a validated Certificate of Analysis (COA) including purity percentage, Phase I content, and P₂O₅ level, which guarantees optimal performance in your detergent formulation.
