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Zinc sulfate heptahydrate, for analysis, ExpertQ®, ACS, ISO, Reag. Ph Eur

- Synonyms: Sulfuric acid zinc salt heptahydrate, Zinc vitriolr- ZnSO4·7H2Or- M = 287,54 g/molr- CAS [7446-20-0]r- EINECS-No.: 231-793-3r- Solub. in water: (20 ºC): 960 g/lr- Melting point: ~ 40 º C (decomposes)r- LD 50 (oral, rat): 2150 mg/kgr- EC-Index-No.: 030-006-00-9r- ADR: 9 M7 III UN 3077r- IMDG: 9 III UN 3077r- IATA/ICAO: 9 III UN 3077r- GHS-signal word: Dangerr- GHS-H sentences: H318 - H400 - H410 - H302r- GHS-P sentences: P280 - P273 - P305+P351+P338 - P310 - P301+P312 - P501ar- Tariff number: 2833 29 20 00r- Applications: analytical chemistry, laboratory reagent, in galvanotechnia, for deproteinating blood and urine.rrSPECIFICATIONSrassay (complexometric): 99,5 - 103,0 %ridentity (IR-spectrum): passes testrappearance of solution: clear and colourlessrinsoluble in water: max. 0,01 %rpH (5 %, H2O): 4,4 - 5,6 rchlorides (Cl): max. 5 ppmrnitrates (NO3): max. 0,002 %rtotal nitrogen (as N): max. 0,001 %rammonium (NH4): max. 0,001 %rarsenic (As): max. 0,5 ppmrcadmium (Cd): max. 5 ppmrcalcium (Ca): max. 0,001 %rcopper (Cu): max. 5 ppmriron (Fe): max. 5 ppmrlead (Pb): max. 0,001 %rmagnesium (Mg): max. 0,001 %rmanganese (Mn): max. 3 ppmrpotassium (K): max. 0,001 %rsodium (Na): max. 0,001 %r