RAW MATERIAL
CAA
CAA Series Citric Acid Anhydrous
CAA Series Citric Acid Anhydrous is a colorless crystalline raw material used for pH control, chelation, water softening, and functional support in liquid detergent, food, cosmetic, and chemical applications.
Chemical Name
Citric Acid Anhydrous
Molecular Weight
192.122 g/mol
Molecular Formula
C6H8O7
EINECS
201-069-1
PRODUCT OVERVIEW
Product Description
CAA Series Citric Acid Anhydrous is a crystalline organic acid supplied as a colorless to white semi-transparent crystalline material. It is widely used across liquid detergent, food-processing, cosmetic, and specialty chemical applications due to its acidity, chelating capability, water solubility, and buffering performance.
In detergent formulations, Citric Acid Anhydrous is valued as a water-softening and chelating ingredient capable of interacting with calcium, magnesium, and other multivalent metal ions. These properties help support detergent performance in hard-water conditions and make citric acid a useful phosphate-reduction alternative or auxiliary in selected formulation systems.
The material also provides effective pH-adjustment and buffering functionality. Its high water solubility supports incorporation into aqueous formulations, while different particle-size grades provide flexibility for processing and handling requirements.
Outside detergent applications, Citric Acid Anhydrous is widely used as an acidity regulator and functional ingredient in food processing, cosmetic formulations, and chemical manufacturing. Final suitability should be evaluated according to the intended application, required product grade, supplier-specific documentation, and applicable regulatory requirements.
PRODUCT PARAMETERS
General Parameters
Appearance
Colorless to white semi-transparent crystalline powder
Physical Form
Crystalline powder
Melting Point
153°C
Density
1.665 g/cm³ at 18°C
Anhydrous / Monohydrate Transition Temperature
36.6°C
Water Solubility
Highly soluble
Alcohol Solubility
Moderately soluble
Ether Solubility
Slightly soluble
Particle Size Type 1
10~40 mesh
Particle Size Type 2
30~100 mesh
Solubility at 10°C
54
Solubility at 20°C
59.2
Solubility at 30°C
64.3
Solubility at 40°C
68.6
Solubility at 50°C
70.9
Solubility at 60°C
73.5
Solubility at 70°C
76.2
Solubility at 80°C
78.8
Solubility at 90°C
81.4
Solubility at 100°C
84
Solubility Data Basis
Source-reported temperature-dependent values; measurement basis not specified in the reference data
KEY PROPERTIES
Product Characteristics
Highly water-soluble crystalline organic acid suitable for aqueous detergent and industrial formulation systems.
Provides effective chelating functionality for calcium, magnesium, and other multivalent metal ions.
Supports water-softening performance in liquid detergent and related cleaning formulations.
Provides reliable pH adjustment and buffering functionality across a broad range of formulation systems.
Available in different particle-size grades to support varied processing, dissolution, and handling requirements.
Suitable as an acidity-regulating and formulation-support ingredient in food, cosmetic, detergent, and chemical applications.
Offers good compatibility with many aqueous formulations where controlled acidity and metal-ion chelation are required.
Anhydrous crystalline form provides a water-free citric acid option for applications requiring controlled moisture contribution.
TECHNICAL SPECIFICATIONS
Specification Data
| Specification | Standard |
|---|---|
| Appearance | Colorless to white semi-transparent crystalline powder |
| Melting Point | 153°C |
| Density | 1.665 g/cm³ at 18°C |
| Anhydrous / Monohydrate Transition Temperature | 36.6°C |
| Particle Size Type 1 | 10~40 mesh |
| Particle Size Type 2 | 30~100 mesh |
APPLICATIONS
Typical Uses
✓
Used as a water-softening and chelating ingredient in liquid detergent formulations where calcium and magnesium control is required.
✓
Applied as a pH-adjusting and buffering ingredient in liquid detergents and other aqueous cleaning formulations.
✓
Used as an acidity regulator in beverage, confectionery, canned-food, and other suitable food-processing applications.
✓
Applied in sugar-processing systems where citric acid functionality is required for controlled sucrose-conversion processes.
✓
Used in selected fruit and vegetable processing applications to support color and quality preservation.
✓
Applied as a pH modifier and buffering ingredient in a variety of processed-food formulation systems.
✓
Used as a functional antioxidant-support ingredient in selected food-processing applications.
✓
Applied in selected bakery and cereal-based formulations where controlled acidity modification is required.
✓
Used in selected canned and salted-food processing applications for flavor and odor adjustment.
✓
Applied in beverage-processing systems where controlled acidity can help support product quality and stability.
✓
Used as a phosphate-reduction or alternative water-softening ingredient in suitable detergent formulations.
✓
Applied as a chelating ingredient for calcium, magnesium, and other suitable multivalent metal ions in cleaning and treatment systems.
✓
Used in cosmetic and personal-care formulations as a pH-adjusting, buffering, and chelating ingredient.
✓
Applied in chemical-processing and specialty formulation systems requiring controlled acidity or metal-ion complexation.
✓
Used in selected metal-cleaning and equipment-treatment formulations where citric-acid chelation is beneficial.
STORAGE & HANDLING
Handling Guidance
Store in tightly sealed and appropriately labeled packaging in a cool, dry, and well-ventilated location. Protect the material from moisture, excessive heat, direct sunlight, and contamination.
Citric Acid Anhydrous can absorb moisture from humid air and may cake during prolonged exposure. Packaging should therefore remain securely closed when the product is not in use.
Minimize unnecessary dust generation during handling and follow the applicable supplier-specific Safety Data Sheet and workplace hygiene requirements. Citric acid dust and concentrated material may cause eye or respiratory irritation.
Storage, transportation, and handling requirements should comply with applicable regulations and the technical and safety documentation supplied by the actual PBL supplier.
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