Molekula
EDTA disodium salt dihydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
EDTA disodium salt dihydrate (ethylenediaminetetraacetic acid disodium salt dihydrate) is a widely used chelating agent that binds metal ions, preventing precipitation and maintaining solution clarity. It is essential in pharmaceuticals, cosmetics, food preservation, and laboratory applications for stabilizing formulations, controlling pH, and enhancing product efficacy. This chemical has a CAS number of 6381-92-6, with the molecular formula C10H14N2Na2O8 and a molecular weight of 372.24 g/mol. It is stable at ambient storage conditions and carries a signal word of "Warning" for safety. Molekula supplies EDTA disodium salt dihydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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50 g — £14.00 per pack ex VAT · £16.80 inc. VAT
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100 g — £15.50 per pack ex VAT · £18.60 inc. VAT
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1 kg — £38.60 per pack ex VAT · £46.32 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Grade | USP/ Food Grade |
| Identification | Conforms to structure |
| pH | 4.3 - 5.7 (5% aq. at 25°C) |
| Loss on Drying | 8.7% - 11.4% |
| Purity | 99.0 - 101.0% (M=372.24) |
| Appearance of Solution | Clear colourless liquid |
| Heavy Metals (Pb) | ≤ 0.001% |
| Iron (Fe) | ≤ 0.001% |
| Cyanide | ≤ 0.001% |
| Calcium (Ca) | Test: Pass |
| Copper (Cu) | ≤ 0.0025% |
| Sulphates (SO4)(2-) | ≤ 0.001% |
| Nitrilotriacetic acid | <0.1% |
| Chelate Value | ≥ 260mg/g |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
Source: PubChem CID 44120005 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 24136970 |
| CAS Number | 6381-92-6 |
| IUPAC Name | disodium;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;dihydrate |
| Molecular Formula | C10H14N2Na2O8 |
| Molecular Weight | 372.24 |
| Exact Mass | 372.0757 |
| SMILES | C(CN(CC(=O)[O-])CC(=O)[O-])N(CC(=O)O)CC(=O)O.O.O.[Na+].[Na+] |
| InChIKey | OVBJJZOQPCKUOR-UHFFFAOYSA-L |
| InChI | InChI=1S/C10H16N2O8.2Na.2H2O/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;;;;/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);;;2*1H2/q;2*+1;;/p-2 |
| PubChem CID | 44120005 |
| REACH Code | Y110 |
| HTS Code | 2922.49.8000 |
| Tariff Code | 2922498590 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H303 May be harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H332 Harmful if inhaled
- H335 May cause respiratory irritation
- H373 May cause damage to organs through prolonged or repeated exposure
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P314 Get medical advice/attention if you feel unwell
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 139-33-3(Anhydrate CAS)
- C10H18N2Na2O10
- Disodium dihydrogen ethylenediaminetetraacetate dihydrate
- disodium edetate (edta)
- Disodium edetate dihydrate; Disodium ethylenediaminetetraacetate dihydrate
- Edta disodium
- EDTA disodium salt
- ethylenediaminetetraacetic acid disodium dihydrate
- Ethylenediaminetetraacetic acid disodium salt, dihydrate
Frequently asked questions
What is EDTA disodium salt dihydrate commonly used for?
EDTA disodium salt dihydrate is primarily used as a chelating agent in pharmaceuticals, cosmetics, and water treatment to bind metal ions and prevent precipitation or degradation.
What is the chemical formula and molecular weight of EDTA disodium salt dihydrate?
The chemical formula is **C₁₀H₁₄N₂Na₂O₈**, and the molecular weight is **372.24 g/mol**.
How should EDTA disodium salt dihydrate be stored?
Store at **ambient temperature** in a cool, dry place, away from direct sunlight and moisture.
What grades of EDTA disodium salt dihydrate does Molekula supply?
Molekula supplies **pharmaceutical-grade (USP/EP/JP)** and **analytical-grade** EDTA disodium salt dihydrate.
Can Molekula supply EDTA disodium salt dihydrate in bulk quantities?
Yes, we offer **bulk packaging options** (e.g., 5 kg, 25 kg, and custom quantities) for industrial and commercial applications.
What documentation comes with an order of EDTA disodium salt dihydrate?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.