Sodium phosphate monobasic SP CAS 7558-80-7 might not be a household name, but it plays a crucial role across multiple industries—from water treatment and food processing to pharmaceuticals and metal finishing. This versatile chemical compound is valued for its buffering capabilities, pH regulation, and solubility properties. Whether you’re a researcher, a product developer, or a procurement specialist, understanding how SP works and where it’s applied can offer insights into better formulation and industrial efficiency Sodium dihydrogen phosphate dihydrate MSP CAS 13472-35-0.
Let’s dive into the many ways this powerful compound is shaping modern industry.
What Is Sodium Phosphate Monobasic (SP) CAS 7558-80-7?
Sodium phosphate monobasic (SP) is an inorganic compound composed of sodium (Na), phosphorus (P), and oxygen (O). Its chemical formula is NaH₂PO₄, and it appears as a white, crystalline powder that is highly soluble in water. The CAS number 7558-80-7 uniquely identifies this specific compound for scientific and industrial use.
Key Properties
- Molecular Weight: 119.98 g/mol
- pH (1% solution): 4.5 – 5.5
- Solubility: Easily dissolves in water
- Appearance: White, odorless crystals or powder
Its acidic pH and excellent buffering capabilities make it a go-to choice in applications where precise control over acidity is needed.
Industrial Applications of Sodium Phosphate Monobasic
1. Water Treatment
Sodium phosphate monobasic is commonly used in boiler water treatment systems to prevent scale buildup and control corrosion.
Key benefits:
- Acts as a pH buffer
- Prevents metal corrosion in pipelines
- Improves water quality for industrial reuse
2. Food and Beverage Industry
In food processing, SP CAS 7558-80-7 is used as a food-grade additive (E339) to maintain moisture, stabilize proteins, and balance pH in various products.
Typical uses:
- Processed meats and poultry
- Cheese and dairy blends
- Baking powders and leavening agents
Its water-binding and emulsifying properties help improve texture, shelf life, and flavor stability.
3. Pharmaceuticals and Health Care
Pharmaceutical manufacturers rely on sodium phosphate monobasic for formulating laxatives, buffering oral medications, and preparing enema solutions.
Uses in pharma:
- Part of colonoscopy prep kits
- Ingredient in antacid formulations
- Used in IV solutions and dialysis fluids
Its biocompatibility and safety profile make it ideal for human health applications.
4. Laboratory and Analytical Use
In research labs, Sodium phosphate monobasic CAS 7558-80-7 is essential for creating phosphate buffer solutions (PBS)—a staple in biochemical and molecular biology experiments.
Applications include:
- Cell culture media
- DNA extraction and PCR reactions
- Enzyme assays
5. Metal Finishing and Surface Treatment
SP is used in metal pretreatment processes, helping improve paint adhesion and reduce corrosion on metal surfaces.
Roles in surface treatment:
- Acts as a cleaner and degreaser
- Neutralizes acidic residues
- Used in phosphate conversion coatings
Its ability to maintain a stable acidic pH makes it a reliable agent in metal finishing workflows.
Advantages of Using Sodium Phosphate Monobasic SP CAS 7558-80-7
Here’s why many industries trust this compound:
- ✅ Highly soluble in water for fast mixing and easy use
- ✅ Reliable buffer agent for controlling pH
- ✅ Non-toxic and safe for food and pharmaceutical uses
- ✅ Versatile applications across multiple industries
- ✅ Cost-effective with long shelf life and easy storage
Handling and Storage Guidelines
To maintain product quality and safety:
- Store in a cool, dry place away from moisture
- Use protective gear when handling large quantities
- Avoid contact with acids and incompatible chemicals
- Seal containers tightly after use
Always follow the MSDS (Material Safety Data Sheet) for safe handling and disposal instructions.
Environmental Considerations
Sodium phosphate monobasic is generally considered environmentally safe when used correctly. However, excessive phosphate runoff into water bodies can contribute to eutrophication—an overgrowth of algae that depletes oxygen in water.
To reduce environmental impact:
- Use precise dosing
- Avoid spillage into drains or soil
- Dispose of in compliance with local environmental regulations
Summary: Why Sodium Phosphate Monobasic Matters
From food production and healthcare to metallurgy and scientific research, Sodium phosphate monobasic SP CAS 7558-80-7 plays an indispensable role. Its buffering power, solubility, and biocompatibility make it an ideal ingredient for diverse applications.
✅ Looking to improve your industrial process or formulation?
Consider incorporating Sodium phosphate monobasic SP CAS 7558-80-7 for its proven performance and versatility. Whether you need it in bulk or lab-grade purity, this compound is a solid investment in quality and efficiency.