Monosodium Phosphate (MSP) CAS No.7558-80-7

As a trusted supplier, we offer anhydrous and hydrated forms of sodium dihydrogen phosphate that adhere to rigorous standards such as USP-NF, Ph. Eur., BP, FCC, and E 339(i). This white, crystalline powder is highly soluble in water, odorless, and provides precise acidity control, making it indispensable for formulations requiring stability and consistency.

Brand:
aozun
Synonym:
Monosodium Phosphate (MSP)
Appearance:
White powder or granular
CAS No.:
7558-80-7
Molecular Formula:
NaH2PO4
Molecular Weight:
119
EINECS:
231-449-2
Solubility:
Easy to dissolve in water

Availability:



Inquiry Add to Basket

Product Description

Product Description

Key Features and Benefits

Effective pH Regulator: Maintains optimal acidity levels (pH 4.0–4.5 in solution) for enhanced product stability and sensory attributes.
High Solubility: Dissolves readily in water (up to 84 g/100 mL at 20°C), enabling easy integration into liquids and semi-solids.
Nutrient Source: Supplies essential phosphorus for nutritional fortification without introducing unwanted flavors or colors.
Multi-Purpose Functionality: Serves as an emulsifier, sequestrant, and leavening agent, improving texture and shelf life in various applications.
Regulatory Compliance: Meets global safety norms, ensuring suitability for food-grade, pharmaceutical, and water treatment uses with minimal impurities.

Technical Specifications

Property	Specification
CAS Number	7558-80-7
Chemical Formula	NaH₂PO₄ (Anhydrous)
Molecular Weight	119.98 g/mol
Appearance	White crystalline powder
Purity	≥98% (dry basis)
Sodium Content	18.5–20.5% (as Na)
Phosphorus Content	25.0–27.0% (as P₂O₅)
pH (1% Solution)	4.0–4.5
Loss on Drying	≤2.0% (at 105°C)
Particle Size	95% through 80 mesh
Solubility	Freely soluble in water; insoluble in alcohol
Shelf Life	24 months under proper storage

Note: Hydrate form (NaH₂PO₄·H₂O, CAS 10049-21-5) available. Custom specifications and packaging options provided upon request. All batches undergo rigorous quality assurance.

Applications

Monosodium Phosphate is a cornerstone ingredient in numerous industries, leveraging its acidifying and buffering properties for superior performance:

Food and Beverage: Functions as an acidity regulator and sequestrant in cheeses, beverages, canned goods, and baked products. It prevents discoloration, stabilizes emulsions, and acts as a leavening agent in doughs for fluffy textures.
Pharmaceuticals: Utilized in oral care products like toothpastes as a mild abrasive and pH adjuster, and in effervescent tablets for controlled release of active ingredients.
Water Treatment: Neutralizes alkaline waters, removes scale, and controls corrosion in boilers and cooling systems, promoting efficient operations.
Animal Feed: Enhances phosphorus bioavailability in premixes, supporting metabolic health and growth in livestock and aquaculture.
Industrial Processes: Acts as a precipitant in metal finishing, a buffer in laboratory reagents, and a component in fireproofing formulations.

From enhancing food quality to optimizing industrial efficiency, our MSP ensures reliable results tailored to your needs.

Frequently Asked Questions (FAQs)

What is Monosodium Phosphate primarily used for?

Monosodium Phosphate (CAS 7558-80-7) is commonly employed as a food additive for pH adjustment, emulsification, and nutrient fortification. It also plays key roles in water softening, pharmaceutical buffering, and industrial chelation processes.

Is Monosodium Phosphate safe for food consumption?

Yes, it is recognized as GRAS (Generally Recognized as Safe) by regulatory bodies and complies with FCC and E 339(i) standards, making it ideal for direct food contact when used within approved limits.

What is the difference between anhydrous and monohydrate forms?

The anhydrous form (CAS 7558-80-7) has higher density and lower moisture, suited for dry blends, while the monohydrate (CAS 10049-21-5) offers better flowability in hydrated applications. Both provide equivalent functionality.

How should Monosodium Phosphate be stored?

Keep in a cool, dry, well-ventilated area in airtight containers to prevent moisture absorption. It maintains efficacy for 24 months under these conditions, away from strong bases or oxidizers.

Does it contain any allergens?

No, Monosodium Phosphate is synthetic and free from allergens, gluten, or GMO-derived materials, supporting clean-label formulations for sensitive consumers.

Are samples or bulk orders available?

Yes, we provide complimentary samples for testing and flexible bulk quantities with competitive pricing. Reach out for personalized quotes and delivery timelines.