Ethylenediaminetetraacetic acid tripotassium salt dihydrate
SIAL/03664 - BioUltra, ≥99.0% (KT)
Synonym: EDTA tripotassium salt; Edathamil; Tripotassium ethylenediaminetetraacetate dihydrate
CAS Number: 65501-24-8
Empirical Formula (Hill Notation): C10H13K3N2O8 · 2H2O
Molecular Weight: 442.54
MDL Number: MFCD00149672
Linear Formula: (KOOCCH2)2NCH2CH2N(CH2COOK)CH2COOH · 2H2O
Product Type: Chemical
λ | 0.1 M in H2O |
anion traces | chloride (Cl-): ≤50 mg/kg |
sulfate (SO42-): ≤500 mg/kg | |
assay | ≥99.0% (KT) |
cation traces | Al: ≤5 mg/kg |
As: ≤0.1 mg/kg | |
Ba: ≤5 mg/kg | |
Bi: ≤5 mg/kg | |
Ca: ≤20 mg/kg | |
Cd: ≤5 mg/kg | |
Co: ≤5 mg/kg | |
Cr: ≤5 mg/kg | |
Cu: ≤5 mg/kg | |
Fe: ≤5 mg/kg | |
Li: ≤5 mg/kg | |
Mg: ≤5 mg/kg | |
Mn: ≤5 mg/kg | |
Mo: ≤5 mg/kg | |
Na: ≤2000 mg/kg | |
Ni: ≤5 mg/kg | |
Pb: ≤5 mg/kg | |
Sr: ≤5 mg/kg | |
Zn: ≤5 mg/kg | |
impurities | insoluble matter, passes filter test |
InChI | 1S/C10H16N2O8.3K.2H2O/c13 |
InChI key | MAPFUJCWRWFQIY-UHFFFAOYSA |
mp | 182 °C (dec.) (lit.) |
pH | 7.0-9.0 (25 °C, 0.1 M in H2O) |
product line | BioUltra |
Quality Level | 100 ![]() |
SMILES string | [K+].[K+].[K+].[H]O[H].[H |
solubility | H2O: 0.1 M at 20 °C, clear, colorless |
UV absorption | λ: 260 nm Amax: 1.5 |
λ: 280 nm Amax: 0.05 |
Application: | Ethylenediaminetetraaceti |
Application: | Used to eliminate inhibition of enzyme catalyzed reactions due to traces of heavy metals |
Symbol | ![]() ![]() |
Signal word | Warning |
Hazard statements | H332 - H373 |
Precautionary statements | P304 + P340 + P312 - P314 |
Hazard Codes | Xi |
Risk Statements | 36/37/38 |
Safety Statements | 26-36 |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 3 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥99.0% (KT) |
mp | 182 °C (dec.) (lit.) |
UNSPSC | 12352200 |