Zinco solfato eptaidrato, per analisi, ExpertQ®, ACS, ISO, Reag. Ph Eur

- Synonyms: Sulfuric acid zinc salt heptahydrate, Zinc vitriol
- ZnSO4·7H2O
- M = 287,54 g/mol
- CAS [7446-20-0]
- EINECS-No.: 231-793-3
- Solub. in water: (20 ºC): 960 g/l
- Melting point: ~ 40 º C (decomposes)
- LD 50 (oral, rat): 2150 mg/kg
- EC-Index-No.: 030-006-00-9
- ADR: 9 M7 III UN 3077
- IMDG: 9 III UN 3077
- IATA/ICAO: 9 III UN 3077
- GHS-signal word: Danger
- GHS-H sentences: H318 - H400 - H410 - H302
- GHS-P sentences: P280 - P273 - P305+P351+P338 - P310 - P301+P312 - P501a
- Tariff number: 2833 29 20 00
- Applications: analytical chemistry, laboratory reagent, in galvanotechnia, for deproteinating blood and urine.

SPECIFICATIONS
assay (complexometric): 99,5 - 103,0 %
identity (IR-spectrum): passes test
appearance of solution: clear and colourless
insoluble in water: max. 0,01 %
pH (5 %, H2O): 4,4 - 5,6
chlorides (Cl): max. 5 ppm
nitrates (NO3): max. 0,002 %
total nitrogen (as N): max. 0,001 %
ammonium (NH4): max. 0,001 %
arsenic (As): max. 0,5 ppm
cadmium (Cd): max. 5 ppm
calcium (Ca): max. 0,001 %
copper (Cu): max. 5 ppm
iron (Fe): max. 5 ppm
lead (Pb): max. 0,001 %
magnesium (Mg): max. 0,001 %
manganese (Mn): max. 3 ppm
potassium (K): max. 0,001 %
sodium (Na): max. 0,001 %