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Sodium tripolyphosphate

Price 1050 USD ($)/ Metric Ton

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MOQ : 1 Metric Ton

Sodium tripolyphosphate Specification

Application
Detergents, water treatment, ceramics, food additive (emulsifier & preservative), textile processing

Shelf Life
2 years if properly stored

Purity
94%

Storage
Keep in a cool, dry, and well-ventilated place, away from moisture and acids

CAS No
7758-29-4

EINECS No
231-838-7

Physical Form
Powder

Product Type
Chemical Compound

Grade
Industrial Grade

Structural Formula
O=P(O)(O)OP(=O)(O)OP(=O)(O)O

Properties
White, odorless crystalline powder; good solubility in water, excellent cleansing and dispersing properties, non-flammable, hygroscopic

Ph Level
9.2 10.0 (1% solution)

Appearance
White powder or granules

Melting Point
622C

Shape
Crystalline powder or granule

Ingredients
Sodium, phosphorus, oxygen

Taste
Alkaline

Molecular Formula
Na5P3O10

Poisonous
Non-poisonous

Solubility
Soluble in water

Smell
Odorless

HS Code
28353100

Molecular Weight
367.86 g/mol

Usage
Used as water softener, dispersing agent, emulsifier, and preservative

Density
2.52 Gram per cubic centimeter(g/cm3)

UN Number
Not regulated

Hazard Class
Not classified as hazardous

pH Value (1% solution)
9.210.0

Loss on Ignition
0.7%

Free from Heavy Metals
10 ppm

Bulk Density
0.7 1.0 g/cm

Packing
25kg woven bag with PE liner or as required

Insoluble in Water
0.1%

About Sodium tripolyphosphate

white powder, apparent density:0.35-0.90g/ml, melting point: 622C, easily dissolving in water; water solution is alkaline (PH value of 1% solution is 9.7); can hydrolyze into phosphate in water, has good ability in complexing metal ions, can be used to soften water; has some surfactant properties.

STPP mainly used as syndet adjuvant, soap synergist and prevent bar soap from oiling off and blooming; has strong emulsification on lubricant and oils and fats, can be used to adjust the PH value of buffer soap solution; can be used as water softener for industrial water, pretanningagent and dyeing adjuvant; drilling mud dispersant; dispersant in preparing suspension in paint, kaolinite, magnesium oxide, calcium carbonate etc.; oil-proofing agent and antifoulant in paper industry.

Spec

Specifications	Superior quality	First-grade	Qualified products
Sodium Tripolyphosphate (as Na5P3O10) %	96	94	85
Phosphorus Pentoxide (as P2O5) %	57.0	57	55.0
Water insoluble matter %	0.10	0.10	0.15
Fe%	0.007	0.015	0.030
PH value	9.2--10.0
Whiteness %	90	80	70
Granularity (tail over through 1.00mm test sieve) %	5.0

Versatile Applications Across Industries

Sodium tripolyphosphate serves as a crucial ingredient in various sectors, including detergents, water treatment, ceramics, food processing, and textiles. Its unique properties-such as powerful cleansing, dispersing, and water-softening abilities-make it highly valued for both industrial and food-related uses, ensuring optimal performance in each application.

Key Properties and Safety

This product is a white crystalline powder with an alkaline pH (9.2-10.0 in 1% solution), solubility in water, and low solubility in other solvents. It is classified as non-hazardous and non-poisonous, and contains minimal heavy metals. Its non-flammable and odorless nature makes it particularly user-friendly and safe for routine handling.

Efficient Packaging and Storage

Sodium tripolyphosphate is supplied in 25kg woven bags with PE liners, preserving powder quality and preventing moisture exposure. For long-term storage, keep STPP in a cool, dry, and well-ventilated area, away from acids and moisture. Proper storage extends its shelf life up to two years, ensuring product stability and usability.

FAQ's of Sodium tripolyphosphate:

Q: How is Sodium tripolyphosphate commonly used in industry?

A: Sodium tripolyphosphate is primarily used as a water softener, dispersing agent, emulsifier, and preservative. Its exceptional cleansing and water-softening abilities make it a key ingredient in detergents, while its preserving and emulsifying qualities are valuable in food processing and ceramics manufacturing.

Q: What benefits does Sodium tripolyphosphate provide in detergents?

A: In detergents, STPP softens water to improve cleaning performance by preventing the formation of insoluble mineral salts. Its dispersing properties help suspend dirt, enhancing the overall effectiveness of cleaning products for both household and industrial use.

Q: Where should Sodium tripolyphosphate be stored to maintain its quality?

A: Sodium tripolyphosphate should be stored in a cool, dry, and well-ventilated area, away from sources of moisture and acids. Proper storage conditions help maintain its efficacy and extend its shelf life to up to two years.

Q: What is the recommended packing and typical bulk density of Sodium tripolyphosphate?

A: STPP is generally supplied in 25kg woven bags lined with polyethylene for moisture resistance. Its bulk density ranges from 0.7 to 1.0 g/cm3, facilitating efficient storage and handling for industrial applications.

Q: What safety and regulatory information should I be aware of regarding Sodium tripolyphosphate?

A: Sodium tripolyphosphate is not classified as hazardous, is non-poisonous, and is not regulated under UN hazardous substance guidelines. It is also free from heavy metals (10 ppm), making it safe for use in various applications where safety and purity are priorities.

Q: How does Sodium tripolyphosphate benefit food processing applications?

A: STPP acts as an effective emulsifier and preservative in food processing, helping to maintain texture and extend shelf life. Its ability to bind with water also increases the juiciness and firmness of processed foods, meeting regulatory purity standards and safety requirements.

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