Monosodium Citrate Anhydrous Granular

Food, industrial and pharmaceutical-grade buffering salt with controlled granular particle size for stable dry processing

Monosodium Citrate Anhydrous Granular Product Overview

Monosodium citrate anhydrous granular is a water-free citrate salt supplied as a free-flowing granular material, designed for applications where process stability, low dustiness, and controlled buffering performance are required.

This granular grade is primarily used in dry blends, premixes, and granulated systems where consistent flow, reliable dosing, and homogeneous mixing are critical.As the partially neutralized salt of citric acid, it functions as a buffering agent, flavour modulator, and mild acidification agent, supporting reproducible formulation behaviour across food, beverage, pharmaceutical, and selected personal care applications.

Citribel produces monosodium citrate anhydrous granular in Europe, under certified conditions, with a defined particle size distribution to ensure predictable handling, stable processing, and consistent product quality across batches.

Why choose Monosodium Citrate Anhydrous Granular?

Water-free form for moisture-sensitive formulations
As an anhydrous (water-free) citrate salt, this product is suitable for systems where low residual moisture is essential, including hygroscopic dry blends and effervescent base formulations. The absence of crystal water supports chemical stability and shelf-life control.

Stable flow behaviour and low dustiness
The granular particle structure provides improved flowability compared to powder grades, reducing dust formation during handling, conveying, and dosing. This supports cleaner processing, improved operator safety, and reduced material loss in industrial environments.

Reliable dosing and blend uniformity
Granular monosodium citrate anhydrous enables accurate gravimetric and volumetric dosing, particularly in continuous or semi-continuous processes. The controlled particle size reduces segregation risks and supports uniform distribution in dry blends and premixes.

Controlled dissolution and buffering performance
Once dissolved, the granular grade delivers reproducible buffering behaviour, supporting stable pH control in aqueous systems. In effervescent formulations, granular grades are often selected for handling stability and controlled reaction behaviour, while finer powder grades are typically used where very rapid dissolution is required.

Defined particle size for process consistency
Citribel monosodium citrate anhydrous granular is supplied with controlled sieve specifications, ensuring consistent flow, predictable dissolution behaviour, and reliable performance under validated manufacturing conditions.

Product identification

Chemical name: 2-hydroxy-1,2,3-propanetricarboxylic acid monosodium salt
Synonyms: monosodium citrate; citric acid monosodium salt
CAS number: 18996-35-5
E-number: E 331 (i)
INCI name: Sodium citrate
Empirical formula: C₆H₇NaO₇
Molecular mass: 214.11 g/mol
Appearance: white to off-white crystalline granules, practically odourless, slightly acidic taste

Typical Applications

Food and beverage

Buffering agent in dry beverage mixes, powdered drinks, and instant food systems
Supports flavour balance through mild acidic and saline taste modulation
Used in granulated or premixed formulations where flow stability is required

Pharmaceutical preparations

Buffering component in pharmaceutical formulations
Used in effervescent tablets and granulated dosage forms
Supports controlled pH in reconstitution systems

Personal care

Used as a pH-adjusting and buffering ingredient
Applied in dry or reconstituted personal care formulations
Supports formulation stability in pH-sensitive systems

Industrial & polymer-related applications

Water-based polymer dispersions and coatings
Supporting pH control and system stability during production and storage.
Bio-based and biodegradable polymer processing
Used as a processing aid in PLA-based systems and starch–polymer blends to support stable processing conditions.
Polymer processing with sensitivity to trace metal ions
Providing mild chelation to help maintain colour and processing stability
Set retarder for cement and cement composites
Effective, less-aggressive, and less-hygroscopic alternative to citric acid for retarding the setting time of cement, gypsum, and concrete, extending working time by inhibiting early hydration, enhancing rheological properties, and improving compressive strength.
Blowing agent for polymers
Effective, non-toxic, endothermic, and food-grade blowing agent for plastics, rubber, and polymers to create fine, uniform, and stable foam structures, providing an eco-friendly alternative to hazardous exothermic agents like azo compounds.

Food & Beverage

Citribel’s ingredients function as reliable buffering agents in dry beverage mixes, powdered drinks, and instant food systems, supporting flavour balance, flow stability, and consistent performance in granulated and premixed formulations.

Personal Care

Citribel’s personal care ingredients, including high-purity citric acid and citrate salts, provide precise pH adjustment, buffering capacity, and formulation stability for skincare, haircare and hygiene products.

Pharmaceuticals

Citribel’s citrate ingredients are used as pH-adjusting and buffering agents in personal care formulations, supporting stability and performance in dry, powder-based, and reconstituted systems.

Industrial & Polymer Applications

For industrial and polymer-related applications, Citribel’s solutions support pH control, mild chelation, polymer processing stability, cement set retardation, and endothermic blowing performance, offering a safer and more controlled alternative to conventional additives in coatings, biodegradable polymers, cement systems, and plastics.

Technical Highlights

Selected essential specifications of our monosodium citrate anhydrous granular are listed here. For a full specification list, see the product data sheet for download below.