Sodium Tripolyphosphate (STPP)

Name: Sodium Tripolyphosphate (STPP)
Brand: RYAN INTERNATIONAL
Price: 76 INR
Availability: InStock

Price 76 INR/ Kilograms

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MOQ : 500 Kilograms

Sodium Tripolyphosphate (STPP) Specification

Grade Standard
Industrial Grade

Appearance
White crystalline powder

Molecular Formula
Na5P3O10

Packing
25 kg net in plastic woven bag with PE liner

P2O5 Content
57% Min

Solubility in Water
Completely soluble

Density
2.52 g/cm³

Product Name
Sodium Tripolyphosphate (STPP)

Water Insoluble Matter
0.1% Max

Whiteness
90% Min

Application
Detergent, water treatment, ceramics, textile, food additive (when specified)

Purity
94% Min

CAS No.
7758-29-4

Storage
Keep in dry, cool and well-ventilated place

Odor
Odorless

Shelf Life
24 months (if properly stored)

PH Value (1% Solution)
9.2-10.0

Melting Point
622°C

HS Code
28353100

Sodium Tripolyphosphate (STPP) Trade Information

Minimum Order Quantity
500 Kilograms

Delivery Time
10-15 Days

About Sodium Tripolyphosphate (STPP)

Technical specification

Parameters	Guaranteed
P2 O 5content%	56+/-0.5
Roh 1 minute minimum	81
Maximum	93
Roh 5 minute minimum	84
Maximum	95
Bulk density, g/ml maxium	1.2
Whiteness level % minimum	82
Sodium tripolyphosphate (Na5P3O10) (Expressed as a % of total ) Phasphate content ), minium	92
Phase from 1, % minimum	25
% maximum Paticle size destribution	55
On 425 micrro (tyler 35 mesh or equvalent) % maximum	5
Thru 150 micrro (tyler 100 mesh or equvalent) % maximum	75
Iron, mg/kg , maximum	300
Ph ( 1.0% in distilled water @ 25C) mi9nimum	9
maximum	10
Whater insoulble % maximum	0.10
Appearancr	White free flowing power, free of foreign materials free from objectionable odours
Odour

Versatile Industrial Applications

Sodium Tripolyphosphate (STPP) serves multiple industries, from detergents and ceramics to water treatment and textiles. Its powerful chelating ability enhances cleaning, improves water quality, and boosts processing efficiencies in manufacturing and treatment plants alike. In specified food uses, it supports preservation and quality control under regulated conditions.

High Purity and Stability

With a minimum purity of 94% and excellent whiteness (90% min), our STPP offers outstanding stability during storage and application. Its long shelf life (24 months when properly stored), complete solubility, and low insoluble content make it a reliable choice for industrial-scale demands and exacting quality standards.

FAQs of Sodium Tripolyphosphate (STPP):

Q: How should Sodium Tripolyphosphate (STPP) be stored for maximum shelf life?

A: STPP should be kept in a dry, cool, and well-ventilated environment to maintain its quality and ensure the 24-month shelf life. Avoid exposure to moisture and direct sunlight, and keep the product securely sealed in its original 25 kg packaging.

Q: What are the main industrial uses of STPP?

A: Sodium Tripolyphosphate is widely used in detergent formulations, water treatment, ceramics, and textile industries. It acts as a water softener, dispersant, and emulsifier, and is also utilized as a food additive when specifically designated and regulated.

Q: When is STPP added to detergent formulations, and why?

A: STPP is typically blended during the production of detergents to improve cleaning performance. Its chelating properties bind hard water ions, enhancing detergent efficiency and preventing scale formation on fabrics and equipment.

Q: Where is Sodium Tripolyphosphate commonly supplied or distributed from in India?

A: STPP is distributed and supplied across India through established chemical distributors and suppliers, serving both domestic and export markets with industrial-grade packaging and compliance to HS Code 28353100 standards.

Q: What is the recommended process for dissolving STPP in water?

A: To dissolve STPP, add the required amount gradually to water while stirring to ensure complete dissolution, as STPP is fully soluble. A homogeneous solution forms readily at room temperature under normal agitation.

Q: How does the use of STPP benefit industrial water treatment?

A: In water treatment, STPP sequesters calcium and magnesium ions, preventing scale deposits and ensuring the smooth operation of pipes and machinery. This leads to lower maintenance costs and prolonged equipment lifespan.

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