Mob.:
+86 156 3115 5652
Mob.:
+86 156 3115 5652
E-mail:
thinkdo_calvin@126.com/thinkdochem@126.com
Mob.:
+86 156 3115 5652
Mob.:
+86 156 3115 5652
E-mail:
thinkdo_calvin@126.com/thinkdochem@126.com
IDS and Other Chelator Products
Calcium Iminodisuccinate, commonly abbreviated as IDS-Ca (CAS number 144538-83-0), is an eco-friendly aminopolycarboxylic acid chelating agent. It is the calcium salt of iminodisuccinic acid, typically existing as a white to off-white crystalline powder or a colorless to pale yellow transparent liquid—both highly soluble in water. Unlike traditional calcium chelating agents such as EDTA-Ca and DTPA-Ca, which are known for poor biodegradability and potential environmental residue, IDS-Ca combines reliable chelating performance with bioavailable calcium supplementation.
Its core features include high biodegradability, stable chelating capacity, good chemical compatibility, and the ability to provide easily absorbable calcium ions, making it suitable for agriculture, food, personal care, and water treatment fields. Phosphorus-free and non-toxic to aquatic and terrestrial ecosystems, it meets international environmental standards and serves as a sustainable alternative for industries facing strict environmental regulations.
Quick Parameter Table (Technical Specifications & Data Sheet)
Parameter
| Solid IDS-Ca Specification | Liquid IDS-Ca Specification |
Molecular Weight | 346.24 g/mol | 346.24 g/mol |
Appearance | White to off-white crystalline powder | Colorless to pale yellow transparent liquid |
Solid Content | ≥95.0% | ≥40.0% |
IDS Content | ≥47.0% | ≥18.8% |
pH Value (10g/L Aqueous Solution) | 8.6-9.6 | 8.6-9.6 |
Density (20℃) | N/A | ≥1.23 g/cm³ |
Chelating Capacity (as CaCO₃) | ≥248 mg/g | ≥248 mg/g |
Stability (pH Range) | 3-11, especially stable at pH 6-8 | 3-11, especially stable at pH 6-8 |
Calcium Content | ≥15.5% | ≥6.2% |
IDS-Ca degrades rapidly in natural environments, with a 28-day biodegradation rate over 90%—a significant improvement over traditional calcium chelates like EDTA-Ca, which typically degrade less than 10%. Phosphorus-free and non-toxic to soil microbes and aquatic organisms, it complies with global environmental norms and reduces the risk of long-term environmental accumulation.
Beyond effectively chelating alkaline earth metals (magnesium, strontium) and heavy metals (iron, copper, manganese), it can release bioavailable calcium ions in applicable scenarios. This dual function eliminates the need for additional calcium supplements in many formulations, simplifying production processes and reducing raw material costs.
It exhibits good compatibility with surfactants, enzymes, oxidants (such as hydrogen peroxide), and common industrial additives. It can be mixed with these substances without performance degradation or chemical reactions, adapting to complex formulation systems in various industries.
It maintains excellent stability in neutral to weak alkaline conditions (pH 6-8), with a stability rate of over 88% after 20 hours at 85℃. It also retains activity at low temperatures (10-35℃), making it suitable for most agricultural and industrial operating conditions.
The calcium ions in IDS-Ca are chelated and stable, not easily precipitated or inactivated in soil or water. This ensures high absorption and utilization rates in agricultural, food, and personal care applications, avoiding calcium waste caused by precipitation.
• Environmental Compliance Challenges: With the tightening of global environmental regulations, non-biodegradable calcium chelates (EDTA-Ca, DTPA-Ca) are gradually restricted. IDS-Ca’s high biodegradability helps customers meet regulatory requirements, avoid non-compliance penalties, and enhance the environmental friendliness of their end products.
• Low Calcium Utilization Efficiency: In agriculture and food industries, free calcium ions are easily precipitated or inactivated, resulting in low absorption rates and raw material waste. IDS-Ca chelates calcium ions to keep them stable and bioavailable, significantly improving calcium utilization and reducing production costs.
• Formulation Complexity: Many products require both chelating agents and calcium supplements, increasing formulation complexity and production costs. IDS-Ca integrates chelation and calcium supplementation, simplifying formulation design and streamlining production processes.
• Calcium Precipitation in Alkaline Systems: Traditional calcium chelates often precipitate in alkaline environments, losing their effectiveness. IDS-Ca maintains stability in a wide pH range (3-11), avoiding precipitation and ensuring consistent performance in various working conditions.
• Metal Ion Contamination and Scaling: In water treatment and food processing, free calcium ions easily cause equipment scaling and product quality issues. IDS-Ca effectively chelates calcium and other metal ions, preventing scaling and contamination, improving product quality and equipment operating efficiency.
As a chelated calcium fertilizer, it is used to produce water-soluble fertilizers, foliar fertilizers, and NPK compound fertilizers. The chelated calcium in IDS-Ca is not easily precipitated in soil—especially alkaline soil—improving the absorption and utilization rate of calcium by crops. It effectively prevents calcium deficiency in crops, enhancing cell wall strength, reducing fruit cracking and blossom-end rot, and improving crop yield and quality. It is particularly suitable for calcium-deficient soils and calcium-sensitive crops, such as tomatoes, peppers, citrus, and leafy vegetables.
It is used as a calcium supplement in food and feed (dosage: 0.05-0.2%), providing bioavailable calcium for human and animal bodies. Its mild performance and high safety meet the relevant national standards for food and feed additives, suitable for fortified foods, dairy products, infant formula, and animal feed.
It serves as a metal ion stabilizer and scale inhibitor in industrial circulating cooling water systems and domestic water treatment. It chelates calcium, magnesium and other metal ions to prevent scale formation and equipment corrosion, improving water treatment efficiency. It is suitable for water treatment systems that require low phosphorus and low irritation.
It is used as a stabilizer and calcium supplement in facial cleansers, lotions, and hair care products (dosage: 0.09-0.48%). It can chelate metal ions in water to enhance cleaning and conditioning effects, and release calcium ions to nourish skin and hair, complying with COSMOS organic certification standards.
In the bleaching and dyeing process (dosage: 0.28-1.4 g/L), it stabilizes hydrogen peroxide, prevents fiber damage, and chelates trace calcium ions in water to avoid fabric hardening and color difference, improving the quality of dyed fabrics.
Liquid IDS-Ca is packed in food-grade plastic barrels with specifications of 20kg, 25kg, 250kg, or 1250kg IBC ton barrels. Solid IDS-Ca is packed in woven bags lined with polyethylene film, with a specification of 20kg per bag. Customized packaging is available upon customer request.
Store in a cool, dry, well-ventilated indoor warehouse, away from direct sunlight, high temperatures (above 40℃), and open flames. The storage temperature should be maintained above 5℃ to prevent liquid products from crystallizing due to low temperatures. Store separately from strong acids, strong oxidants, and incompatible substances, and protect from moisture and contamination. Avoid prolonged exposure to air to prevent moisture absorption.
Under proper storage conditions, the shelf life of liquid IDS-Ca is 12 months, and the shelf life of solid IDS-Ca is 24 months. After the shelf life expires, inspect the product performance before use; it can only be used if it meets technical specifications.
Transport as a non-dangerous good, avoiding collision, extrusion, and leakage during transit. Protect from rain and sunlight, and follow relevant transportation regulations. For long-distance transportation in cold weather, take insulation measures to prevent crystallization of liquid products.
• Dilution: Liquid IDS-Ca can be used directly or diluted with deionized water or soft water to the required concentration based on application needs. For solid IDS-Ca, first dissolve it in deionized water (with gentle stirring to accelerate dissolution) before diluting to the target concentration. Avoid using hard water for dilution to prevent premature chelation of metal ions.
• Dosage Recommendations: The specific dosage varies by application field and actual working conditions:
• Agriculture (Foliar Fertilizer): 0.09-0.23% of the spray solution; (Water-Soluble Fertilizer): 0.07-0.23% of the fertilizer formula
• Food and Feed Additives: 0.05-0.2% (based on total product weight)
• Water Treatment: 2.0-14 ppm for circulating cooling water; 0.2-0.9 ppm for domestic water treatment
• Textile Printing and Dyeing: 0.28-1.4 g/L (according to specific bleaching and dyeing processes)
• Personal Care Products: 0.09-0.48% (lotions/cleansers); 0.08-0.3% (hair care products)
• Addition Sequence: When compounding with oxidants (such as sodium percarbonate), add them separately to avoid chemical reactions that affect performance. When mixing with other additives, the order is not critical, but thorough stirring is required to ensure uniform mixing.
• Operational Precautions: Wear gloves and goggles during handling to avoid direct skin and eye contact. If contact occurs, rinse immediately with plenty of clean water. Do not mix directly with high-concentration Al³⁺/Fe³⁺ solutions to prevent precipitation. Store diluted solutions in sealed containers and use them within 48 hours for optimal stability. Avoid contact with strong acids, as this may cause decomposition.
Our sales and technical teams can work with you to understand your requirements and recommend the most appropriate product based on your application and conditions.
Yes, please refer to the safety data sheets provided for each product for detailed handling and safety instructions.
Yes, upon request and subject to certain conditions, we can provide samples for your evaluation and testing.
Yes, we have a dedicated technical support team available to assist customers with any questions or issues related to the use of our products.
We have strict quality control processes in place, including raw material inspection, in-process monitoring, and final product testing to ensure consistent quality.
