EDTA disodium salt dihydrate Ph. Eur., USP, BP, JP, ACS
Supplier: VWR Chemicals
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
Caution: Not for use as Active Pharmaceutical Ingredient (API)
Formula:
C₁₀H₁₄N₂Na₂O₈·2H₂O MW: 372,24 g/mol Melting Pt: 255 °C Storage Temperature: Ambient |
MDL Number:
MFCD00150037 CAS Number: 6381-92-6 EINECS: 205-358-3 Merck Index: 13,03543 |
Specification Test Results
Appearance: |
99.0 -- |
White or almost white crystalline powder | Passes test |
Heavy metals (as Pb) | Max. 10 ppm |
Residual solvents | Passes test |
Residual metal catalysts (skip lot): . | Passes test Ph.Eur./BP |
As (Arsenic) | Max. 2 ppm |
Cd (Cadmium) | Max. 1 ppm |
Co (Cobalt) | Max. 1 ppm |
Hg (Mercury) | Max. 3 ppm |
Ni (Nickel) | Max. 1 ppm |
Pb (Lead) | Max. 3 ppm |
V (Vanadium) | Max. 6 ppm |
Conforms to Ph.Eur./USP/BP/JP/ACS | Passes test |
Ph.Eur./BP specifications: | Passes test Ph.Eur./BP |
Assay [Ph.Eur./BP] | 98.5 --> 101.0 % |
Identification A | Passes test USP |
Identification B | Passes test USP |
Identification D | Passes test Ph.Eur./BP |
Appearance of solution | Passes test Ph.Eur./BP |
pH (5 %) [Ph.Eur./BP] | 4.0 --> 5.5 |
Impurity A (*) [Ph.Eur./BP] | Max. 0.1 % |
Fe (Iron) [Ph.Eur./BP] | Max. 80 ppm |
USP specifications: | Passes test |
Assay (calculated on dried basis) [USP] | 99.0 --> 101.0 % |
Identification C | Passes test USP |
Ca (Calcium) | Passes test USP |
Limit of nitrilotriacetic acid [USP] | Max. 0.1 % |
pH (25°C; 50 mg/ml) [USP] | 4.0 --> 6.0 |
Loss on drying (150°C; 6 h) [USP] | 8.7 --> 11.4 % |
JP specifications: | |
Assay [JP] | Min. 99.0 % |
Identification 1 | Passes test JP |
Identification 2 | Passes test JP |
Identification 3 | Passes test JP |
pH (1 %) [JP] | 4.3 --> 4.7 |
Clarity and colour of solution | Passes test JP |
CN (Cyanide) | Passes test JP |
Residue on ignition [JP] | 37.0 --> 39.0 % |
ACS specifications: | |
Assay [ACS] | 99.0 --> 101.0 % |
pH (25°C; 5 %) [ACS] | 4.0 --> 6.0 |
Insoluble matter [ACS] | Max. 0.005 % |
Nitrilotriacetic acid [ACS] | Max. 0.1 % |
Heavy metals (as Pb) [ACS] | Max. 0.005 % |
Fe (Iron) [ACS] | Max. 0.01 % |
(*): Impurity A (Nitrilotriacetic acid): result guaranteed by supplier |
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