IDS-Na₄ Tetrasodium Iminodisuccinate - 100% biodegradable chelating agent (CAS 144538-83-0). Eco-friendly alternative to EDTA/DTPA for industrial cleaning, water treatment, detergents and more. Free samples available.
| Density (20 ℃, g/cm ³ | Liquid: ≥ 1.20 |
| pH (1% solution) | >7 |
| Solid content (%) | Liquid: ≥ 42 Solid: ≥ 92 |
| Effective content (%) | Liquid: ≥ 33.0 Solid: ≥ 76 |
| appearance | Colorless to light yellow aqueous solution or white powder |
Product Name: Tetrasodium Iminodisuccinate (IDS-Na₄)
CAS No: 144538-83-0
Molecular Formula: C₈H₇NO₈Na₄
Molecular Weight: 337.1 g/mol
Synonyms:
Tetrasodium
iminodisuccinate, Sodium iminodisuccinate, Iminodisuccinic acid
tetrasodium salt, N-(1,2-Dicarboxyethyl)-DL-aspartic acid tetrasodium
salt

Tetrasodium Iminodisuccinate (IDS-Na₄) is a new generation 100% biodegradable green chelating agent, renowned for its excellent environmental properties and outstanding chelation performance. As an ideal replacement for traditional chelating agents (such as EDTA, DTPA, HEDP), IDS provides powerful metal ion control while fully complying with the most stringent environmental standards.
Available in both liquid and solid forms to meet various industrial application requirements.
Ultimate Eco-Friendliness: Phosphorus-free, non-toxic, with over 80% biodegradation within 28 days (OECD 301F certified)
High Chelation Efficiency: Excellent chelating capability for calcium, magnesium, iron, copper and other metal ions
Exceptional Stability: Resistant to high temperatures and strong alkalis, excellent hydrogen peroxide stabilization performance
Broad Spectrum Compatibility: Good compatibility with surfactants, silicates and other formulation components
| Parameter | Liquid Form | Solid Form |
Appearance | Colorless to light yellow clear liquid | White powder |
Active Content | ≥ 33.0% | ≥ 76% |
Solid Content | ≥ 42% | ≥ 92% |
pH (1% solution) | > 7 | > 7 |
Density (20°C) | ≥ 1.20 g/cm³ | — |
Bulk Density | — | ≥ 0.3 kg/L |
Industrial Cleaning: Hard surface cleaning, metal ion chelation, pipeline descaling
Peroxide Stabilization: Textile bleaching, pulp bleaching, silica scale inhibition
Daily Chemicals & Detergents: Liquid detergents, soap formulations, product preservation
Textile Dyeing: Dye color stabilization, metal ion shielding
Agriculture & Environmental: Soil remediation, micronutrient fertilizers, drip irrigation systems
Water Treatment: Circulating water systems, scale inhibitors, water softeners
Cosmetics: Preservation enhancement, heavy metal chelation
Liquid Packaging: 25kg/drum, 250kg/drum (customization available)
Solid Packaging: 25kg/moisture-proof kraft paper bag
Storage Conditions: Keep sealed and protected from light, store at room temperature
Shelf Life: 24 months (under proper storage conditions)
This product is alkaline. Wear appropriate protective equipment (gloves, safety glasses) during handling. Avoid contact with skin and eyes. In case of contact, rinse immediately with plenty of water. For detailed safety information, please refer to the Safety Data Sheet (SDS).
Documentation:
[Safety Data Sheet (SDS)]
[Technical Data Sheet (TDS)]
[Test Report]
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Disclaimer: Product information is based on current knowledge and experience and is provided for reference only. We recommend users conduct thorough testing to determine suitability for specific applications. All products are supplied subject to our standard terms and conditions of sale.
| Density (20 ℃, g/cm ³ | Liquid: ≥ 1.20 |
| pH (1% solution) | >7 |
| Solid content (%) | Liquid: ≥ 42 Solid: ≥ 92 |
| Effective content (%) | Liquid: ≥ 33.0 Solid: ≥ 76 |
| appearance | Colorless to light yellow aqueous solution or white powder |