Sodium Hexametaphosphate(SHMP) CAS No.10124-56-8

Sodium Hexametaphosphate (SHMP), also known as glassy sodium polyphosphate or Graham's salt, is a versatile inorganic polyphosphate compound essential for chelation, sequestration, and dispersion in various industries.

Brand:
aozun
Synonym:
Sodium Hexametaphosphate
Appearance:
White powder, granular or flake in appearance
CAS No.:
10124-56-8
Molecular Formula:
(NaPO3)6
Molecular Weight:
611
EINECS:
233-343-1
Solubility:
Soluble in water

Availability:



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Product Description

Product Description

Key Features and Benefits

Powerful Sequestrant: Forms stable complexes with metal ions, preventing scaling, precipitation, and turbidity for superior water softening and stabilization.
Emulsifying and Dispersing Agent: Enhances texture and uniformity in formulations by binding fats, proteins, and pigments, reducing separation and improving mouthfeel.
pH Regulator: Maintains optimal acidity in solutions, supporting microbial control and product shelf life without harsh additives.
High Solubility and Stability: Dissolves readily in water (up to 90 g/100 mL at 20°C) with low hydrolysis rate, enabling easy incorporation into liquids and powders.
Non-Toxic Profile: GRAS status for food use, with low acute oral toxicity (LD50 >3 g/kg), minimizing health risks in consumer products.
Versatile Compatibility: Works synergistically with surfactants, polymers, and enzymes, boosting efficacy in multi-component systems.

Applications

SHMP is a multi-functional additive across food processing, industrial cleaning, and water management, delivering enhanced quality and efficiency:

Food and Beverages: Acts as an emulsifier, stabilizer, and sequestrant in dairy (cheese, milk), meats (sausages, poultry), seafood, canned goods, beverages (beer, juices), and desserts (ice cream, jellies) to retain moisture, prevent discoloration, and improve texture.
Water Treatment: Serves as a corrosion inhibitor and scale preventer in boilers, cooling towers, and municipal systems, softening hard water by chelating calcium and magnesium.
Detergents and Cleaners: Boosts cleaning power in laundry, dishwashing, and industrial formulations by dispersing soils and preventing redeposition.
Personal Care: Incorporated into toothpastes for tartar control and anti-staining, leveraging its chelating properties for oral health.
Industrial Processes: Used in ceramics (deflocculant for clay slips), textiles (dyeing auxiliary), paper manufacturing (dispersant), and oil drilling (viscosity modifier for mud).
Other Uses: Enhances whipping in proteins, clarifies liquids, and acts as a rust inhibitor in metal treatments.

Compliance with standards like FDA GRAS, EU E452i, and JECFA ensures safe integration into regulated products.

Product Specifications

Property	Specification
CAS Number	10124-56-8
EC Number	233-343-1
Molecular Formula	(NaPO₃)₆ / Na₆P₆O₁₈
Molecular Weight	611.77 g/mol
Appearance	White crystalline powder or glassy solid
Purity (as P₂O₅)	≥68.0%
Melting Point	628°C
Solubility in Water	Freely soluble (>90 g/100 mL at 20°C)
pH (1% Aqueous Solution)	5.8-7.3
Density	2.484 g/cm³
Moisture Content	≤2.0%
Water-Insoluble Matter	≤0.05%
Iron (Fe) Content	≤0.05%
Packaging	25 kg multi-wall paper bags or 1 MT jumbo bags
Shelf Life	24 months in dry conditions

Note: Food-grade and technical grades available. All lots tested for heavy metals (As ≤3 ppm, Pb ≤10 ppm) and microbial contaminants.

Safety and Handling Information

SHMP is classified as a mild irritant (GHS Warning: H319 - Causes eye irritation) with low overall toxicity, making it suitable for broad applications. Standard handling practices ensure safe use:

Personal Protective Equipment (PPE): Wear safety goggles, gloves, and dust masks to prevent eye/skin contact and inhalation of fine particles.
Storage: Store in a cool, dry, well-ventilated area below 30°C in sealed containers to avoid moisture absorption and clumping. Keep away from strong acids or bases.
First Aid: For eye contact, rinse with water for 15 minutes and seek medical advice. Wash skin with soap and water if irritated. If ingested in large amounts, drink water and consult a physician.
Spill Response: Sweep up dry spills or dilute with water; avoid dust generation. Dispose as non-hazardous waste per local environmental guidelines.
Environmental: Biodegradable under aerobic conditions with low aquatic toxicity. Monitor phosphate levels in effluents to prevent eutrophication.

Full Safety Data Sheet (SDS) available upon request, aligning with OSHA and GHS standards.

Frequently Asked Questions (FAQs)

What is Sodium Hexametaphosphate (SHMP)?

SHMP (CAS 10124-56-8) is a sodium polyphosphate used as a sequestrant, emulsifier, and dispersant. Its cyclic structure of six phosphate units enables strong binding to metal ions, making it valuable in food, water, and cleaning products.

What are the main applications of SHMP?

SHMP is widely applied in food processing (e.g., meat tenderizing, dairy stabilization), water softening, detergents for soil dispersion, toothpastes for tartar control, and industrial uses like ceramics and textiles.

Is SHMP safe for food use?

Yes, SHMP is FDA GRAS and EU-approved as E452i, with an ADI of 40 mg/kg body weight (as phosphorus). It poses low risk at regulated levels, though excessive intake may cause mild digestive discomfort in sensitive individuals.

How does SHMP function as a sequestrant?

SHMP chelates divalent metals like calcium and magnesium, forming soluble complexes that prevent scaling, precipitation, and interference in formulations, outperforming simpler phosphates in efficiency.

What is the solubility and pH profile of SHMP?

SHMP is highly water-soluble (>90 g/100 mL at 20°C) but dissolves slowly due to its glassy nature. Its 1% solution has a pH of 5.8-7.3, suitable for neutral to mildly acidic systems.

Can SHMP be used in custom industrial formulations?

Yes, available in various grades (food, technical), it can be tailored for specific viscosity, purity, or particle size needs, with expert support for optimization.

What storage conditions are recommended for SHMP?

Store in dry, sealed containers at ambient temperatures to prevent hydrolysis. Shelf life extends to 24 months under proper conditions, avoiding high humidity.