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03664 Sigma-Aldrich

Ethylenediaminetetraacetic acid tripotassium salt dihydrate

BioUltra, ≥99.0% (KT)

Synonym: EDTA tripotassium salt, Edathamil, Tripotassium ethylenediaminetetraacetate dihydrate

  • CAS Number 65501-24-8

  • Linear Formula (KOOCCH2)2NCH2CH2N(CH2COOK)CH2COOH · 2H2O

  • Molecular Weight 442.54

  •  Beilstein Registry Number 6762497

  •  MDL number MFCD00149672

  •  PubChem Substance ID 329747757

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Properties

Related Categories Biochemicals and Reagents, Chelators More...
InChI Key   MAPFUJCWRWFQIY-UHFFFAOYSA-K
product line   BioUltra
assay   ≥99.0% (KT)
impurities   insoluble matter, passes filter test
pH   7.0-9.0 (25 °C, 0.1 M in H2O)
mp   182 °C (dec.)(lit.)
solubility   H2O: soluble0.1 M at 20 °C, clear, colorless
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤500 mg/kg
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
λ   0.1 M in H2O
UV absorption   λ: 260 nm Amax: 1.5
  λ: 280 nm Amax: 0.05

Description

Application

Used to eliminate inhibition of enzyme catalyzed reactions due to traces of heavy metals

Ethylenediaminetetraacetic acid tripotassium salt dehydrate can be used to study chelators, biochemicals and reagents. EDTA tripotassium salt has been used in a study to assess the safety of EDTA and HEDTA ingredients in cosmetic formulations.

Other Notes

Same product — same quality — now Sigma-Aldrich brand

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.



Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
Protocols & Articles
Peer-Reviewed Papers
15

References

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