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Ethylenediaminetetraacetic acid, EDTA, disodium salt, dihydrate, for molecular biology

- Synonyms: Edetic acid disodium salt, Disodium dihydrogen ethylenediaminetetraacetater- C10H14N2Na2O8·2H2Or- M = 372,24 g/molr- CAS [6381-92-6]r- EINECS-No.: 205-358-3r- Solub. in water: (20 ºC): 100 g/lr- Melting point: 252 ºC (decomposes)r- LD 50 (oral, rat): 2000 mg/kgr- GHS-signal word: Warningr- GHS-H sentences: H332 - H373 - - r- GHS-P sentences: P260 - P271 - P304+P340 - P312 - P314 - P501ar- Tariff number: 2922 49 95 90r- Applications: analytical chemistry, sequestering agent.rrSPECIFICATIONSrassay (complexometric, referred to dried sample): min. 99 % : rpH (5 %, H2O, 25 °C): 4 - 5 rchlorides (Cl): max. 0,0005 %rsulfates (SO4): max. 0,01 %rarsenic (As): max. 0,0005 %rcopper (Cu): max. 0,001 %riron (Fe): max. 0,001 %rlead (Pb): max. 0,001 %rloss on drying (150ºC, 6 h): max. 10,0 %rDNases, RNases, Proteases : non detectedr