Ethylenediaminetetraacetic acid, EDTA, disodium salt, dihydrate, Pharmpur®, Ph Eur, BP, USP

- 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): 99,0 - 101,0 %rassay (complexometric): 98,5 - 101,0 %rIdentification IR: passes testrIdentification sodium: passes testrIdentification B (USP): passes testridentification B (EP): passes testrIdentification C (EP): passes testrappearance of solution: clear and colourlessrpH (5 %, H2O): 4,0 - 5,5rcalcium (Ca): passes testriron (Fe): max. 80 ppmrnitrilotriacetic acid [(HOCOCH4)3N]: max. 0,1 %rloss on drying (150ºC, 6 h): 8,7 - 11,4 %r