Product Description

1. Ethylenediaminetetrasodium succinate is an environmentally friendly and easily degradable chelating agent. Compared with EDTA, it has no environmental residues and can be completely mineralized by microorganisms within 28 days, meeting the EU green daily chemical regulations.
2. It has excellent selectivity for chelating heavy metals such as iron, copper, and manganese. It is stable in a wide pH range and high-temperature environment, and can inhibit the decomposition of hydrogen peroxide, prevent the oxidation and discoloration of the system, and inhibit the formation of scale.
3. It is suitable for hair care cosmetics, textile bleaching, circulating water treatment, soil remediation, and liquid chelating fertilizers.

Products Specification

Product name	EDDS/TRISODIUMETHYLENEDIAMINE DISUCCINATE
CAS NO	20846-91-7
ITEM NO	M297
Appearance	white powder
Purity	98%
Loss on Drying	≤20.0%
Melting point	220-222℃
Boiling point	516.7±50.0 °C
Acidity coefficient (pKa)	1.74±0.23
Water solubility	150mg/L at 20℃
Density	1.534
Package	100g/1kg/25kg
Delivery	2-3days
Storage	20-25°C
TDS/COA	connect us

Products Application

1.Washing and cleaning: Added to laundry detergent and dishwashing liquid, it chelates the calcium and magnesium ions in the water to prevent the formation of scale, and at the same time enables the surfactants to remove stains more efficiently.

2. Environmental Remediation: This process is used to clean soil or wastewater contaminated by heavy metals (such as copper, lead, and zinc), extracting the heavy metals and eliminating the risk of secondary pollution as it can be degraded.

3. Agricultural Production: In alkaline soil, it acts as a "carrier" to assist plants in better absorbing essential trace elements such as iron and zinc.

4. Industry and Cosmetics: It is used as a stabilizer in textile printing and dyeing, papermaking, and cosmetics to prevent metal ions from causing color changes or deterioration of the products.

FAQ

What are the core environmental advantages compared to EDTA?

EDDS is fully biodegradable and leaves no residue in the soil or water bodies.

How effective is the chelation of calcium and magnesium in hard water conditions?

The calcium and magnesium chelation ability is relatively weak. It primarily captures heavy metals such as iron and copper, and is less likely to form soap-like deposits, thereby reducing skin irritation.

The core application fields of EDDS (CAS: 20846-91-7)?

1. Water treatment industry
2. Cosmetics and toiletries industry (core additives for cleansing / cosmetics)
3. Textile printing and dyeing industry (special chelating agents / dispersants for dyeing and finishing)
4. Agricultural field (enhancing micro-fertilizers / soil remediation)
5. Other industries (metal surface treatment / papermaking / coatings)

How can the use of EDDS (CAS: 20846-91-7) in the textile printing and dyeing industry enhance the efficiency of dyeing and finishing processes and the quality of fabric products?

By leveraging its characteristics of efficient chelation, biodegradability, wide pH compatibility, and full compatibility with dyeing and finishing auxiliaries, it addresses the shortcomings of traditional chelating agents (EDTA, trisodium phosphate) such as low chelation efficiency, cumbersome processes, frequent fabric defects, and difficult wastewater treatment. This enables a 30%+ improvement in dyeing and finishing process efficiency, a defect rate of fabric products reduced to below 1%, and an increase in core quality indicators such as color fastness and whiteness of the fabric. Additionally, it can lower the cost of wastewater treatment.

How to increase the biodegradation rate of EDDS(CAS: 20846-91-7) while ensuring that its chelating property does not deteriorate?

It is by targeting the retention of the chelating core site, strengthening the biodegradable structure, and precisely regulating through the entire process of synthesis, purification and modification - the chelating property is determined by the amino/carbonic acid coordination sites of the ethylenediamine backbone and the side chain of succinic acid, and the biodegradability is determined by the biologically oxidizable carbon chain/taxonomic configuration of the succinic acid side chain. The two can work together to optimize and ultimately achieve a biodegradation rate of ≥ 95% (exceeding the national standard) and maintaining the same chelation efficiency and complexation constant as the original product for Ca²⁺/Fe³⁺/heavy metals.

Can the EDDS product be combined with dyeing uniforming agents, softening agents, and fixation agents?

It can be directly compounded with the commonly used uniforming agents, softening agents, and fixation agents in dyeing processes. There are no any compatibility restrictions. Moreover, when compounded with these auxiliaries, it can form a synergistic effect. EDDS eliminates the interference of its activity on uniforming, softening, and fixation auxiliaries, and instead enhances the efficiency and effect of these auxiliaries. No chemical reactions occur throughout the process, no precipitates or sludge are produced, and the activity of each other is not reduced. It meets the compound requirements for the entire process of pre-treatment, dyeing, and post-treatment in dyeing.

What are the advantages of EDDS in the field of dyeing?

1.Chelating performance: High efficiency, wide compatibility, remains stable at low temperatures and over a wide pH range.
2.Process compatibility: High compatibility, free from defects, and fully integrated throughout the process.
3.Product quality: Achieve comprehensive improvement in fabric quality to meet high-end requirements

4.Environmental compliance: Biodegradable, low residue, compliant with domestic and international environmental standards

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