E5391
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E5391
Sigma
Ethylenediaminetetraacetic acid tetrasodium salt hydrate
SigmaUltra, ≥99.0%
| Synonym: | Edathamil, EDTA tetrasodium salt, Tetrasodium ethylenediaminetetraacetate hydrate |
| CAS Number: | 194491-31-1 |
| Linear Formula: | (NaOOCCH2)2NCH2CH2N(CH2COONa)2 · xH2O |
| Molecular Weight: | 380.17 (anhydrous basis) |
| Beilstein Registry Number: | 3861753 |
| EC Number: | 200-573-9 |
| MDL number: | MFCD00150025 |
| PubChem Substance ID: | 24894613 |
Description
| Application | Used to eliminate inhibition of enzyme catalyzed reactions due to traces of heavy metals. |
Properties
| grade | SigmaUltra |
| assay | ≥99.0% |
| total impurities | Insoluble matter, passes filter test |
| pH | 11.0-12.0 (20 °C, 0.1 M in H2O) |
| solubility | H2O: 0.1 M at 20 °C, clear, colorless |
| anion traces | chloride (Cl-): ≤0.05% |
| sulfate (SO42-): ≤0.01% | |
| cation traces | Al: ≤0.001% |
| As: ≤0.0001% | |
| Ba: ≤0.0005% | |
| Bi: ≤0.0005% | |
| Ca: <0.001% | |
| Cd: ≤0.0005% | |
| Co: ≤0.0005% | |
| Cr: ≤0.0005% | |
| Cu: ≤0.0005% | |
| Fe: ≤0.0005% | |
| Li: ≤0.0005% | |
| Mg: ≤0.0005% | |
| Mn: ≤0.0005% | |
| Mo: ≤0.0005% | |
| Ni: ≤0.0005% | |
| Pb: ≤0.0005% | |
| Sr: ≤0.0005% | |
| Zn: ≤0.0005% | |
| abs. | A |
| A |
Safety
| Personal Protective Equipment | dust mask type N95 (US), Eyeshields, Gloves |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26 |
| WGK Germany | 2 |
References
| Beilstein | Beil. 4,IV,2451 |
