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Spanish Tripolifosfato de sódio (STPP)
Tripolifosfato de sódio (STPP)
Tripolifosfato de sódio (STPP) , also known as Sodium Tripolyphosphate 95% ou Pentasodium Triphosphate, is a white granular or powdered inorganic compound. It acts as a powerful sequestrant and water softener in industrial and household applications. STPP is the additive of choice for:
- Superior water softening (binds Ca²⁺/Mg²⁺ ions)
- Enhanced detergency (prevents redeposition of dirt)
- Effective deflocculation in drilling muds
- Scale inhibition in water treatment systems
- Oil & grease prevention in paper and textile processing
| Propriedade | Especificação |
|---|---|
| Fórmula química | Na₅P₃O₁₀ |
| Peso molecular | 367.86 |
| Aparência | White granular or powder |
| Densidade a granel | 0.35 – 0.90 g/cm³ |
| Melting Point | 622°C |
| pH (solução 1%) | 9.2 – 10.0 |
| Standard Grades | 96% (Top Grade) / 90% / 85% |
Aplicativos recomendados
Household & Industrial Detergents
Automatic Dishwashing Tablets
Water Treatment (Boiler/Cooling Tower)
Drilling Mud Dispersant
Soap & Bar Soap Manufacturing
Clay & Ceramic Processing
Industrial Cleaning Formulations
Typical Dosage Guidelines
| Aplicativo | Dosagem recomendada | Função |
|---|---|---|
| Laundry Powder | 10% – 25% of formula | Water softening & anti-redeposition |
| Dishwashing Detergent | 15% – 30% | Soil suspension & glass protection |
| Boiler/Cooling Water | 5 – 30 ppm | Scale inhibition |
| Drilling Mud | 0.5 – 2.0 kg/m³ | Viscosity control & deflocculation |
| Industrial Cleaner | 5% – 15% of concentrate | Metal chelation & degreasing |
Always run lab trials before batch production to optimize for ambient temperature, cement type, and target strength.
Try Our FREE STPP Sample
Experience the difference of high-purity Sodium Tripolyphosphate in your formulation.
At Tenessy, experience our Sodium Tripolyphosphate product firsthand with a FREE sample!
- Tamanho da amostra: 25kg or 50kg.
- Envio: Rápido via FedEx ou DHL.
- Serviço: Suporte especializado para ajuste de fórmulas.
Por que usar Sodium Tripolyphosphate in Detergents & Water Treatment?
Sequesters Hard Water Ions
STPP forms soluble complexes with calcium (Ca²⁺), magnesium (Mg²⁺), and iron (Fe²⁺) ions. This prevents soap scum formation and allows surfactants to work efficiently even in hard water.
Prevents Dirt Redeposition
As an inorganic surfactant, STPP disperses and suspends loosened dirt particles, preventing them from settling back onto fabrics or surfaces during washing.
Enhances Bleaching Efficiency
In laundry powders and dishwashing formulas, STPP boosts the performance of oxygen-based bleaches, improving stain removal at lower temperatures.
Controls Scale in Water Systems
For cooling towers, boilers, and pipes, STPP acts as a threshold inhibitor, preventing calcium carbonate and sulfate scales from forming on equipment.
Performance Comparison: STPP vs. Other Builders
| Recurso | STPP (Sodium Tripolyphosphate) | Sodium Carbonate (Soda Ash) | Zeolite A |
|---|---|---|---|
| Calcium Binding Capacity | High (≥150 mg CaO/g) | Low (precipitation only) | Médio |
| Magnesium Binding | ✅ Excellent | ❌ Poor | ❌ Very Poor |
| Anti-Redeposition | ✅ Yes | ❌ No | ✅ Moderate |
| Alkalinity (1% pH) | 9.2–10.0 (mild) | >11 (harsh) | 10–11 |
| Water Solubility | Fully soluble | Soluble | Insolúvel |
| Works in Cold Water | ✅ Yes | ✅ Yes | ❌ Slow |
Looking for a multifunctional builder? STPP offers solubility, sequestration, and dispersion in one molecule.
Why Industrial Buyers Choose Our STPP
✅ Fornecimento direto da fábrica – Reduce costs with consistent, traceable quality from our ISO-certified plant.
✅ Custom Particle Sizing – Available in powder, fine granular, or medium granular (0.35–0.90 g/cm³ bulk density) to suit your mixing process.
✅ Global Logistics – Fast shipping via CFR, CIF, or FOB terms. Standard 25kg bags or jumbo bags with palletized options.
✅ Non-Toxic & Stable – Safe for handling with proper PPE. Store in dry, ventilated warehouses away from direct sunlight.
Real-World Case: Laundry Detergent Manufacturer
A Southeast Asian detergent producer switched from zeolite to 96% STPP in their powder formulation. Results:
✅ Reduced formulation cost by 12% (lower surfactant demand)
✅ Increased whiteness retention by 25% after 5 wash cycles
✅ Eliminated hard water residue on washing machine drums
✅ Stable pH during storage (no caking or decomposition)
STPP Packaging & Storage
Saco de 25 kg
Embalagem de pó padrão com função à prova de umidade para garantir a estabilidade do produto durante o transporte e o armazenamento.
Embalagem personalizada
