Ethylenediaminetetraacetic acid diammonium salt
Ethylenediaminetetraacetic acid diammonium salt (CAS: 20824-56-0), with the molecular formula (NH 4 OOCCH 2 ) 2 NCH 2 CH 2 N(CH 2 COOH) 2 and a molecular weight of 326.30 g/mol, is a key chelating agent. It is widely utilised in analytical chemistry, particularly for complexometric titrations due to its ability to form stable complexes with metal ions. This diammonium salt form offers specific solubility and handling characteristics beneficial in laboratory settings.
- IUPAC
- Diammonium ethylenediaminetetraacetate
- Synonyms
- Diammonium ethylenediaminetetraacetate
Complexometric Titration
This diammonium salt of EDTA is extensively used as a titrant for the quantitative determination of metal ions. Its high purity and consistent assay ensure accurate and reproducible results in analytical laboratories.
Metal Ion Sequestration
The compound acts as an effective chelating agent, sequestering various metal ions from solutions. This property is valuable in applications requiring the control of metal ion reactivity or removal.
Analytical Reagent
As a high-purity analytical reagent, it is employed in a range of laboratory analyses and research applications where precise control over metal ion concentrations is critical.
| Molecular weight | 326.30 |
|---|---|
| Linear formula | (NH4OOCCH2)2NCH2CH2N(CH2COOH)2 |
| Assay | ≥99.0% (KT)≥99.0% |
| Grade | for complexometry |
| pH | 4.0-5.0 (25 °C, 50 mg/mL in H2O) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Cation traces | Ca: ≤10 mg/kgCd: ≤5 mg/kgCo: ≤5 mg/kgCr: ≤5 mg/kgCu: ≤5 mg/kgFe: ≤5 mg/kgK: ≤50 mg/kgMg: ≤5 mg/kgMn: ≤5 mg/kgNa: ≤500 mg/kgNi: ≤5 mg/kgPb: ≤5 mg/kgZn: ≤5 mg/kg |
| Anion traces | chloride (Cl-): ≤50 mg/kgsulfate (SO42-): ≤50 mg/kg |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Ethylenediaminetetraacetic acid diammonium salt used for?
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Ethylenediaminetetraacetic acid diammonium salt (CAS: 20824-56-0) is primarily used as a chelating agent in complexometric titrations for the determination of metal ions, and as a general analytical reagent in laboratories.
What are the CAS number and formula for this compound?
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The CAS number is 20824-56-0 and the linear formula is (NH 4 OOCCH 2 ) 2 NCH 2 CH 2 N(CH 2 COOH) 2 .
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethylenediaminetetraacetic acid diammonium salt in a 'for complexometry' grade with an assay of ≥99.0% (KT) or ≥99.0%. We do not represent this product as USP, BP, or EP grade unless explicitly stated.
How should this chemical be handled safely?
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Handling requires personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The substance is classified with WGK Germany 3, indicating it is hazardous to water.
How is Ethylenediaminetetraacetic acid diammonium salt packed and shipped?
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This chemical is carefully packed and exported by Tech Serve Solutions in compliance with international shipping regulations for chemical substances.
How can I request a quote or sample?
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To request a quote or sample of Ethylenediaminetetraacetic acid diammonium salt, please contact our sales team via the website or by phone.
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