Description

Sodium Tripoly Phospate [STPP) – 25 Kg

Sodium tripolyphosphate ($\text{Na}5\text{P}_3\text{O}{10}$), often abbreviated as STPP, is a highly versatile inorganic salt that serves as a cornerstone in industrial chemistry. It typically presents as a white, odorless, granular powder or crystalline substance that is highly soluble in water, forming a mildly alkaline solution. The compound is the sodium salt of the polyphosphate penta-anion, which gives it its strong chelating or sequestering properties. This means it can bind tightly to di- and trivalent metal ions, notably calcium ($\text{Ca}^{2+}$) and magnesium ($\text{Mg}^{2+}$). This ability to sequester hard water minerals is its most critical function in industrial applications, enhancing the performance of other active agents like surfactants and preventing mineral scale formation. It is commercially produced on a massive scale by heating a precise mixture of monosodium phosphate and disodium phosphate.

1. Sodium tripolyphosphate (STPP) is a white crystalline powder or granular substance.
2. It’s widely used in industrial detergents and cleaning products as a water softener and emulsifier.
3. STPP effectively removes oil, grease, and dirt from surfaces by preventing them from redepositing.
4. In industrial applications, it’s also utilized in ceramics, textiles, and paper manufacturing.
5. It acts as a sequestrant, helping to control pH and improve the performance of various chemical processes.
6. STPP is a key ingredient in water treatment processes, aiding in the prevention of scale formation and corrosion.

📌 STPP (Sodium Tripolyphosphate) — Product Policy

1. Return & Replacement Policy

• Return available within 24 hours if product is sealed and unused.
• Return valid only for wrong item or damaged packaging.
• No return for used, opened, or contaminated product.
• Replacement within 2–5 business days.

2. Delivery Policy

• Dhaka: 1–2 days
• Outside Dhaka: 2–5 days
• Courier cost based on weight (25kg+).
• Full prepayment is required.

3. Usage & Restriction Policy

• Suitable for detergent, water treatment, and industrial usage.
• Must use PPE; avoid inhalation.
• Prohibited for food-grade applications unless specified.

4. Warranty / Quality Assurance

• No warranty after opening the seal.
• Quality guaranteed only in sealed condition.
• No coverage for storage-related damage.

5. Special Notes

• Hygroscopic (absorbs moisture quickly).
• Keep tightly sealed.
• MSDS available.