Product Description
Sodium Tripolyphosphate (STPP) is a high-quality inorganic phosphate compound widely used in laboratory research, analytical chemistry, water treatment, detergent manufacturing, ceramics, textile processing, food processing, and industrial applications. It is generally available as a white crystalline or granular powder and is freely soluble in water.
Sodium Tripolyphosphate has the chemical formula Na₅P₃O₁₀, CAS Number 7758-29-4, and molecular weight 367.86 g/mol. It is valued for its water-softening, dispersing, emulsifying, and metal-ion sequestration properties.
The product is available in a 500gm pack and may be supplied under Molychem,Loba, Researchlab, or Merck brands, depending on availability. The listed origin is India.
Sodium Tripolyphosphate 500mg – High-quality laboratory and industrial chemical
Key Features
- Chemical Name: Sodium Tripolyphosphate
- Common Name: STPP
- Chemical Formula: Na₅P₃O₁₀
- CAS Number: 7758-29-4
- Molecular Weight: 367.86 g/mol
- Appearance: White crystalline or granular powder
- Purity: ≥98%
- Solubility: Freely soluble in water
- pH (1% Solution): 9.0–10.0
- Odor: Odorless
- Weight: 500gm
- Brand: Molychem/ Loba / Researchlab / Merck
- Origin: India

Applications
Sodium Tripolyphosphate is commonly used as a dispersing and sequestration agent in laboratory and industrial processes. It is useful in analytical research involving phosphate chemistry, water hardness, and metal-ion interaction.
In the detergent industry, STPP helps soften water and improve cleaning performance. It is also used in water treatment, ceramics, textile processing, tanning, and specialty chemical manufacturing.
Certain food-grade Sodium Tripolyphosphate products are used as a food additive (E451) in permitted applications. Food processing should only use material specifically certified for food-grade use.
Safety & Handling
Handle Sodium Tripolyphosphate with appropriate laboratory precautions. The powder may cause irritation to the eyes, skin, or respiratory tract. Wear gloves, safety goggles, and suitable protective equipment during handling and avoid inhaling dust.
Store in a cool, dry place in a tightly closed container, protected from moisture. Always follow the manufacturer’s SDS for detailed safety and disposal information.
Price & Availability in Bangladesh
Sodium Tripolyphosphate 500gm is available from M/S Bright Scientific Co. subject to current stock. Other pack sizes may also be available depending on requirements.
For current price, brand, stock availability, quotation, bulk order, and nationwide delivery, contact Bright Scientific.
Why Choose Sodium Tripolyphosphate from M/S Bright Scientific Co.?
- High-quality laboratory and industrial chemical
- Suitable for research and analytical applications
- Freely soluble in water
- Useful for water treatment and detergent applications
- Available in convenient 500gm packaging
- Brand options: Loba / Researchlab / Merck
- Secure packaging
- Competitive pricing
- Bulk supply available
- Nationwide delivery across Bangladesh
Product Specifications
| Parameter | Details |
|---|---|
| Product Name | Sodium Tripolyphosphate (STPP) |
| Weight | 500gm |
| Chemical Formula | Na₅P₃O₁₀ |
| CAS Number | 7758-29-4 |
| Molecular Weight | 367.86 g/mol |
| Appearance | White Crystalline or Granular Powder |
| Purity | ≥98% |
| Solubility | Freely Soluble in Water |
| pH (1% Solution) | 9.0–10.0 |
| Odor | Odorless |
| Brand | Loba / Researchlab / Merck |
| Country of Origin | India |
Frequently Asked Questions (FAQ)
1. What is Sodium Tripolyphosphat?
Sodium Tripolyphosphate, or STPP, is an inorganic phosphate compound used as a dispersing, sequestration, and water-softening agent.
2. What is the CAS Number of STPP?
The CAS Number is 7758-29-4.
3. What is the molecular weight of STPP?
Its molecular weight is 367.86 g/mol.
4. Is STPP soluble in water?
Yes, Sodium Tripolyphosphate is freely soluble in water.
5. What is STPP used for?
It is used in laboratory research, detergents, water treatment, ceramics, textile processing, and selected food-processing applications.
6. What is the available pack size?
The listed pack size is 500gm.
7. Where can I buy Sodium Tripolyphosphat in Bangladesh?
You can contact M/S Bright Scientific Co. for price, availability, quotation, and delivery information.
Contact Information
M/S Bright Scientific Co.
Phone: +880 1711285976











Reviews
There are no reviews yet.