EDTA-Ca Chelated Calcium (CAS 62-33-9) - High-efficiency calcium nutritional supplement with ≥10% calcium content and ≥98% chelation degree. Suitable for agricultural micronutrient fertilizers and food additives. Enhances calcium absorption and utilization.
| Bulk Density | About 690 kg/m3 |
| Water-solubility | About 800 g/L (20℃) , about 1500 g/L (80℃) |
| Calcium Content | 10±0.5% |
| Heavy metals | ≤10 mg/kg |
| Aquosity | 5.0%~13.0% |
Product Name: EDTA-Ca (Calcium EDTA)
CAS No.: 62-33-9 (117-277-1)
Molecular Formula: C₁₀H₁₂N₂O₈CaNa₂·2H₂O
Molecular Weight: 410.3 g/mol
Synonyms:
EDTA Calcium Sodium, Calcium Disodium EDTA, Chelated Calcium, EDTA-Ca-10

EDTA-Ca is a stable water-soluble metal chelating agent capable of chelating polyvalent iron ions and releasing calcium ions, forming more stable chelates through calcium-iron replacement. With calcium content ≥10% and chelation degree ≥98%, it serves as an ideal calcium nutritional supplement for agricultural and food industry applications.
Efficient Chelation: Unique calcium replacement mechanism forms stable chelates
High Bioavailability: Organic chelated calcium improves absorption rate by 50% compared to inorganic calcium
Excellent Solubility: Solubility reaches 800 g/L at room temperature and 1500 g/L at elevated temperatures
Good Safety: Near-neutral pH with wide application range
Strong Stability: Resistant to storage and decomposition
| Parameter | Specification |
|---|---|
| Appearance | White free-flowing powder |
| Calcium Content (Ca) | ≥ 10.0% |
| Chelated Calcium Content | ≥ 98.0% |
| pH (1% Aqueous Solution) | 6.5-7.5 |
| pH (20% Aqueous Solution) | 6.5-8.0 |
| Moisture Content | 5.0%-13.0% |
| Heavy Metal Content | ≤ 10 mg/kg |
| Water Solubility (20°C) | ≥ 800 g/L |
| Water Solubility (80°C) | ≥ 1500 g/L |
| Bulk Density | ≈ 690 kg/m³ |
Agricultural Applications
Micronutrient fertilizer: Provides highly absorbable calcium nutrition
Foliar fertilizer formulations: Prevents calcium deficiency symptoms in crops
Integrated water-fertilizer systems: Suitable for drip and sprinkler irrigation
Soil conditioning: Improves fertility of calcium-deficient soils
Food Industry
Food additive: Serves as colorant and nutritional fortifier
Quality improver: Enhances food texture and stability
Applications: Dairy products, beverages, baked goods, etc.
Other Fields
Pharmaceutical原料: Raw material for calcium supplements
Industrial uses: Water treatment, etc.
Agricultural Use:
Foliar spray: Dilution concentration 0.2%-0.5%
Drip irrigation: Dosage of 300-600g per acre
Application timing: Key calcium-demanding growth stages
Food Additives:
Use according to GB standard dosages
Recommended addition: 0.1%-0.5%
Packaging Specifications: 25 kg/bag (moisture-proof packaging with inner plastic liner)
Storage Conditions: Store sealed in a cool, dry place away from light
Shelf Life: 24 months
Stacking Requirements: Avoid heavy pressure; store separately from toxic and hazardous substances
This product has certain environmental impacts (refractory degradation, COD value 580 mg/g). Please follow recommended dosages. For food additive use, comply with relevant standard regulations.
Documentation:
[Safety Data Sheet (SDS)]
[Technical Data Sheet (TDS)]
[Application Guide Manual]
Sample Request:
Contact us for complimentary samples and technical information
Disclaimer: Product information is for reference only. Please read the product manual and comply with relevant regulations before use.
| Bulk Density | About 690 kg/m3 |
| Water-solubility | About 800 g/L (20℃) , about 1500 g/L (80℃) |
| Calcium Content | 10±0.5% |
| Heavy metals | ≤10 mg/kg |
| Aquosity | 5.0%~13.0% |
| pH Value (20% aqueous solution) | 6.5~8.0 |
| pH Value (1% aqueous solution) | 6.5~7.5 |
| Chelated Calcium Content | ≥98.0% |
| Appearance | Free-flowing white powder |