EDTA disodium salt dihydrate 99.0-101.0% (by titrimetric analysis) for HPLC, Supelco®
Supplier: Merck
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Warning
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Synonyms:
Ethylenediaminetetraacetic acid, disodium salt, dihydrate, Ethylenediaminetetraacetic acid disodium salt dihydrate, Kestranal® 2S dihydrate, Disodium dihydrogen ethylenediaminetetraacetate dihydrate, Ethylenedinitrilotetra-acetic acid disodium salt dihydrate, Ethylenediaminetetraacetic acid disodium dihydrate, Titriplex III, Ethylenediaminetetra-acetic acid disodium salt dihydrate, Kestranal® 2S 2 H2O, Sequestrene Na₂, Edetate disodium dihydrate, Edetic acid disodium salt dihydrate
Chelator of divalent cations. Inhibits enzymes, such as metalloproteases, that require divalent cations for activity.
Formula:
C₁₀H₁₄N₂Na₂O₈·2H₂O MW: 372,24 g/mol Melting Pt: 248 °C (dec., lit.) |
MDL Number:
MFCD00150037 CAS Number: 6381-92-6 EINECS: 205-358-3 |
Specification Test Results
Appearance (Color) | Colorless or White |
Appearance (Form) | Powder or crystals |
Titration (Kt) ZnSO4 0.1M | 99.0 - 101.0 % |
Suitability Test (HPLC) | Corresponds to Standard |
Metal Trace Analysis (ICP) | Corresponds to Requirements |
Aluminium (ICP) | ≤ 5.0 mg/kg |
Barium (ICP) | ≤ 5.0 mg/kg |
Bismuth (ICP) | ≤ 5.0 mg/kg |
Calcium (ICP) | ≤ 10 mg/kg |
Cadmium (ICP) | ≤ 5.0 mg/kg |
Cobalt (ICP) | ≤ 5.0 mg/kg |
Chromium (ICP) | ≤ 5.0 mg/kg |
Copper (ICP) | ≤ 5.0 mg/kg |
Iron (ICP) | ≤ 5.0 mg/kg |
Potassium (ICP) | ≤ 50 mg/kg |
Lithium (ICP) | ≤ 5.0 mg/kg |
Magnesium (ICP) | ≤ 5.0 mg/kg |
Manganese (ICP) | ≤ 5.0 mg/kg |
Molybdenum (ICP) | ≤ 5.0 mg/kg |
Nickel (ICP) | ≤ 5.0 mg/kg |
Lead (ICP) | ≤ 5.0 mg/kg |
Strontium (ICP) | ≤ 5.0 mg/kg |
Zinc (ICP) | ≤ 5.0 mg/kg |
Total Sulfur As SO4 (ICP) | ≤ 50 mg/kg |
Chloride (Cl) | ≤ 50 mg/kg |
Solubility (Method) | 1.117 g in 30 ml H2O=0.1M |
Appearance (Solution) | Clear Colorless |
Residue (Filter Test) | No Residue |
UV - Abs. At 260 nm | ≤ 0.145 |
UV - Abs. At 280 nm | ≤ 0.025 |
Recommended Retest Period | 54 Months |
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