0
VWR® EDTA disodium salt dihydrate 99.0-101.0%, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. analytical reagent
Catalog No :
CAS Number :
Brand :
In Stock
Specifications:
| Application | Analytical Chemistry | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Powder |
| Product Brand | VWR, part of Avantor | ||
| Product Grade | Analytical grade | Formula | C₁₀H₁₄N₂Na₂O₈·2H₂O |
VWR® EDTA Disodium Salt Dihydrate, AnalaR NORMAPUR® is a high-purity analytical reagent used as a chelating agent for binding metal ions in laboratory, pharmaceutical, biochemical, and analytical workflows. Also known as Titriplex III, edetate disodium dihydrate, or ethylenediaminetetraacetic acid disodium salt dihydrate, this reagent is suitable for applications requiring controlled purity, trace metal limits, and compliance with recognized analytical standards.
With an assay specification of 99.0–101.0%, conformance to ACS and Reag. Ph. Eur. requirements, and low impurity limits for heavy metals, iron, copper, chloride, cyanide, sulphate, and nitrilotriacetic acid, it is well suited for regulated laboratory environments, quality control testing, titrimetric analysis, buffer preparation, and metal ion complexation procedures.
Key Features
- High-purity EDTA disodium salt dihydrate
- AnalaR NORMAPUR® analytical reagent grade
- Conforms to ACS and Reag. Ph. Eur. requirements
- Assay range: 99.0–101.0%
- Effective chelating agent for divalent and polyvalent metal ions
- Suitable for analytical, biochemical, and pharmaceutical laboratory workflows
- Low heavy metal limit: ≤5 ppm as Pb
- Ambient storage
- Available in pack sizes from 100 g to 25 kg
Applications
- Complexometric titration
- Metal ion chelation
- Buffer and reagent preparation
- Analytical chemistry workflows
- Pharmaceutical quality control
- Biochemistry and molecular biology applications
- Water hardness determination
- Trace metal control in formulations
- Laboratory method development
- Reagent preparation for research and QC laboratories
Product Specifications
| Parameter | Specification |
|---|---|
| Brand | VWR® |
| Product Name | EDTA Disodium Salt Dihydrate |
| Grade | AnalaR NORMAPUR® ACS, Reag. Ph. Eur. |
| Reagent Type | Analytical reagent |
| Assay | 99.0–101.0% |
| CAS Number | 6381-92-6 |
| Molecular Formula | C₁₀H₁₄N₂Na₂O₈·2H₂O |
| Molecular Weight | 372.24 g/mol |
| MDL Number | MFCD00150037 |
| EINECS | 205-358-3 |
| Merck Index | 13,03543 |
| Melting Point | 255°C |
| Storage Temperature | Ambient |
Quality Specifications
| Test | Specification |
|---|---|
| Assay | 99.0–101.0% |
| pH at 25°C, 5% solution | 4.0–5.5 |
| Identification by IR | Passes test |
| Identification B | Passes Ph. Eur. test |
| Identification Na | Passes test |
| Appearance of Solution S | Passes Ph. Eur. test |
| Heavy metals as Pb | ≤5 ppm |
| Insolubility in water | ≤50 ppm |
| Loss on drying at 150°C | 9–10% |
| Nitrilotriacetic acid | ≤0.05% |
| Chloride | ≤40 ppm |
| Cyanide | ≤10 ppm |
| Sulphate | ≤0.02% |
| Copper | ≤10 ppm |
| Iron | ≤5 ppm |
| Conforms to ACS | Passes test |
| Conforms to Reag. Ph. Eur. | Passes test |
Ordering Information
| Catalogue Number | Pack Size | Pack Type |
|---|---|---|
| 20302.180 | 100 g | Plastic bottle for solids |
| 20302.236 | 250 g | Plastic bottle for solids |
| 20302.260 | 500 g | Plastic bottle |
| 20302.293 | 1 kg | Plastic bottle for solids |
| 20302.464 | 25 kg | Plastic bucket |
Synonyms
- Ethylenediaminetetraacetic acid, disodium salt, dihydrate
- Ethylenediaminetetraacetic acid disodium salt dihydrate
- EDTA disodium salt dihydrate
- Disodium dihydrogen ethylenediaminetetraacetate dihydrate
- Ethylenedinitrilotetra-acetic acid disodium salt dihydrate
- Ethylenediaminetetraacetic acid disodium dihydrate
- Titriplex III
- Edetate disodium dihydrate
- Edetic acid disodium salt dihydrate
- Sequestrene Na₂
- Kestranal® 2S dihydrate
VWR® EDTA Disodium Salt Dihydrate, 99.0–101.0%, AnalaR NORMAPUR® is a dependable analytical-grade chelating reagent for laboratories requiring high purity, strong metal-binding performance, and recognized ACS and Reag. Ph. Eur. compliance. Its broad applicability in titration, buffer preparation, pharmaceutical QC, water testing, and biochemical workflows makes it a practical reagent for routine and regulated laboratory environments.
- Pack Size: 250g 1kg 100g 500g Plastic bucket, 25kg