Sodium Hexametaphosphate
$ 2.55 Original price was: $ 2.55.$ 2.44Current price is: $ 2.44.
Sodium Hexametaphosphate (SHMP) is a high-efficiency sequestrant and dispersing agent widely used across industrial applications. It appears as a white, odorless powder or granule, highly soluble in water, and is valued for its ability to chelate metal ions, soften water, and disperse solids. Its role in preventing scale formation and stabilizing chemical formulations makes it a key ingredient in water treatment, cleaning agents, and textile processing. It is the primary active ingredient in many commercial and industrial water treatment formulations, most notably as the original key component in the Calgon® brand of water softeners and scale inhibitors. While modern “Calgon” products may contain blended formulations, the term has become a common genericized reference for polyphosphate-based scale prevention, rooted in this chemical’s function.
Sodium Hexametaphosphate Industrial Grade
Primary Uses
1. Cleaning and Detergent Chemicals
- Water softener and scale inhibitor: Acts as a water softener and scale inhibitor in industrial and household cleaning products. It is the foundational chemical in branded scale prevention products, such as the historically significant Calgon, used to prevent limescale buildup in appliances.
- Dispersing agent: Functions as a dispersing agent in detergent formulations to prevent soil redeposition.
2. Water Treatment Chemicals
- Sequestrant for scale prevention: Used in boiler and cooling water systems to sequester calcium and magnesium ions, preventing scale build-up and corrosion. This is the core technology behind many industrial water conditioning programs.
- Corrosion and scale control: Prevents scale build-up and corrosion in industrial water systems, including those treated with commercial formulations derived from SHMP.
3. Textile Chemicals
- Dyeing and printing aid: Aids in dyeing and printing processes by preventing metal salt precipitation, which can cause spotty coloration.
- Process water softening: Improves wet processing efficiency by softening water, leading to better chemical uptake and more consistent results.
Secondary Uses
1. Oil and Gas Chemicals
- Drilling and injection fluid additive: Used in drilling fluids and water injection systems to control scale and hardness, protecting downstream equipment.
2. Specialty and Fine Chemicals
- Industrial dispersant and chelator: Functions as a dispersant and chelating agent in various industrial formulations, including ceramics, paper, and paint.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Sodium hexametaphosphate
- Common/Trade Name: SHMP Industrial Grade
- CAS Number: 10124-56-8
- HS Code: 2835.39
- Synonyms:
- SHMP
- Graham’s Salt
- Calgon (commercial product reference)
- Sodium polyphosphate
- Note on "Calgon": "Calgon" is a registered trademark for consumer and industrial water treatment products whose original and primary active ingredient was sodium hexametaphosphate. This synonym reflects its historical and functional identity as the key scale-inhibiting component.
2. Physical & Chemical Properties
- Physical State: Solid (powder or granules)
- Color & Odor: White, odorless
- pH: 5.5–7.5 (1% aqueous solution)
- Density: Approx. 2.48 g/cm³
- Solubility: Freely soluble in water
- Melting Point: Decomposes before melting (~616°C)
3. Safety & Hazard Attributes
- GHS Classification: Not classified as hazardous under normal conditions.
- Toxicity: Low oral toxicity; may cause mild irritation on contact with dust (eyes, skin, respiratory tract).
- Exposure Limits: Follow workplace exposure guidelines for nuisance dust.
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry area in tightly closed containers to prevent caking due to moisture absorption.
- Container Type: Multi-layer paper bags, drums, or bulk containers.
- Shelf Life: Up to 24 months if stored properly in a dry environment.
- Handling Precautions: Avoid dust formation; use protective equipment. Minimize prolonged skin contact.
- Storage Measures: Keep away from moisture and strong acids.
5. Regulatory & Compliance Attributes
- Regulatory Status: Complies with industrial-grade chemical safety standards.
- Labeling: Meets GHS labeling and handling requirements.
- Use Restriction: Not intended for direct food, beverage, or pharmaceutical use. For those applications, Food Grade SHMP is required.
6. Environmental & Health Impact
- Biodegradability: Inorganic; does not degrade biologically.
- Ecotoxicity: Low environmental toxicity in typical usage; however, phosphate release into waterways can contribute to eutrophication.
- Bioaccumulation: Not expected to bioaccumulate.
Safety Handling Precautions
- PPE Required: Use gloves, goggles, and a dust mask during handling, especially when transferring or dumping powder.
- Handling Guidelines: Avoid inhalation of dust; minimize skin and eye contact. Use local exhaust ventilation in enclosed spaces.
- Storage Measures: Store separately from acids and moisture sources.
- Hygiene Practices: Wash hands thoroughly after handling.
First Aid Measures
- Inhalation: Move to fresh air; seek medical help if symptoms (coughing, irritation) persist.
- Skin Contact: Wash with water and mild soap.
- Eye Contact: Rinse thoroughly with water for several minutes, holding eyelids open; seek medical advice if irritation continues.
- Ingestion: Rinse mouth; do not induce vomiting; seek medical attention if large quantities are swallowed.
Firefighting Measures
- Fire Hazards: Non-flammable.
- Extinguishing Media: Water spray, foam, dry chemical, CO₂. Use the media most suitable for the surrounding fire.
- Special Precautions: Use appropriate PPE for surrounding fire conditions. No specific chemical hazards from SHMP itself.
- Hazardous Combustion Products: If involved in a fire and exposed to extreme heat, it may emit fumes of sodium oxides and phosphorus oxides.
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