Synonyms: Disodium ethylenediaminetetraacetate dihydrate, EDTA disodium salt, EDTA‑Na₂, Edetate disodium, Sequestrene Na2, Disodium edetate

Product Information

Overview

EDTA‑Na₂ (Disodium EDTA) is a widely used chelating agent capable of binding divalent and trivalent metal ions such as calcium, magnesium, iron, and copper. By sequestering metal ions, EDTA‑Na₂ improves stability, consistency, and performance in a wide range of laboratory and industrial systems.

Due to its high solubility and broad compatibility, Disodium EDTA is commonly used in chemical processing, water treatment, cosmetics manufacturing, analytical laboratories, and formulation development.

Technical Overview & Biochemistry

EDTA‑Na₂ is a hexadentate aminopolycarboxylic acid salt. Its four carboxylate groups and two amine nitrogens form a stable octahedral coordination complex with divalent and trivalent metal cations, effectively removing them from solution. This mechanism underlies its use as an anti-oxidant synergist, a stabiliser against metal-catalysed degradation, and an inhibitor of metal-dependent enzymes (e.g. metalloproteases) in analytical and formulation chemistry. Chelation efficiency is pH-dependent, with the disodium salt providing good solubility and buffering behaviour across a moderately acidic to neutral range (pH 4.0–6.0 as a 1% solution).

Typical Applications

• Chelating and sequestering metal ions in laboratory solutions
• Water treatment and water softening processes
• Industrial and chemical formulations
• Cosmetic and personal-care raw material processing
• Analytical chemistry and buffer preparation
• Textile, paper, and cleaning product manufacturing

Key Features

• Strong chelation of calcium, magnesium, iron, and trace metals
• High purity and consistent performance
• Effective across a broad pH range
• Freely soluble in water
• Suitable for laboratory and industrial use

Typical Specifications

Storage & Handling

• Store in a cool, dry place
• Keep container tightly closed
• Protect from moisture

Intended Use

For laboratory, industrial, and manufacturing use only. Not intended for pharmaceutical, therapeutic, or medical use.

Quality & Compliance

• Manufactured under controlled conditions
• Consistent batch quality
• COA and SDS available upon request (see tabs above)

Cross-Reference / Equivalent Products

Cross-reference numbers are provided for chemical-identity comparison (same CAS number) and convenience only; AuSaMicS ASC-8039 is an independently manufactured and specified product.

Frequently Asked Questions

What is EDTA‑Na₂ used for?

It is used to chelate metal ions (calcium, magnesium, iron, copper) in laboratory, industrial, water treatment, and cosmetic-ingredient processing applications.

Is EDTA‑Na₂ the same as EDTA disodium salt or Sequestrene Na2?

Yes — these are all common names for the same compound, CAS 6381-92-6.

Do you provide COA, SDS, and TDS with each order?

Yes — batch-specific COA, full SDS, and TDS documentation are available; see the tabs above or request current versions from our technical team.

Is ASC-8039 suitable for pharmaceutical or medical use?

No — it is manufactured for laboratory, industrial, and manufacturing use only.

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Technical Data Sheet Summary

Document: TDS-ASC-8039 — full Technical Data Sheet available as a downloadable Word/PDF document. Summary specifications below.

Identity

Quality Control Specifications

Mode of Action

EDTA‑Na₂ chelates divalent and trivalent metal cations through its four carboxylate and two amine donor groups, forming a stable 1:1 octahedral metal complex. This sequestration prevents metal-catalysed oxidation, precipitation, and enzymatic activity dependent on free metal ions, stabilising formulations and analytical solutions.

Recommended Storage & Shelf Life

• Store in a cool, dry place in the original tightly closed container
• Protect from moisture
• Typical shelf life: refer to batch-specific Certificate of Analysis

Literature / References

• Dwyer, F.P. & Mellor, D.P. (1964). Chelating Agents and Metal Chelates. Academic Press.
• Bell, C.F. (1977). Principles and Applications of Metal Chelation. Oxford University Press.
• Martell, A.E. & Hancock, R.D. (1996). Metal Complexes in Aqueous Solutions. Springer.

Safety Data Sheet Summary

Document: SDS-ASC-8039 — full 16-section GHS-compliant Safety Data Sheet (Australian regulatory format) available as a downloadable Word/PDF document.

Product & Company Identification

Hazard Overview

Disodium EDTA is generally regarded as having low acute toxicity, but the full SDS should always be consulted before handling. Typical hazard considerations include mild irritation potential to eyes and skin on prolonged/repeated exposure and dust inhalation irritation. This summary is not a substitute for the complete SDS.

• Signal Word: Warning (refer to full SDS for classification specific to this batch/grade)
• Physical form: Solid powder — minimise dust generation
• Incompatibilities: Strong oxidising agents

First Aid & Handling Highlights

• Eye contact: Rinse cautiously with water for several minutes; remove contact lenses if present
• Skin contact: Wash with plenty of soap and water
• Inhalation: Remove to fresh air
• Handling: Use appropriate PPE (gloves, safety glasses); avoid dust formation; ensure adequate ventilation

This is a summary for quick reference only. Always consult and follow the complete, current Safety Data Sheet before use, handling, storage, or disposal.

Certificate of Analysis

Each batch of ASC-8039 is supplied with a batch-specific Certificate of Analysis confirming compliance with the specifications below.

Batch Traceability

Batch/lot number, manufacture date, and re-test/expiry date are printed on the product label and the corresponding Certificate of Analysis issued with each shipment. Quote your batch number when requesting a COA reprint.