Siarczan cynkowy, heptahydrat, Pharmpur®ekstra czysty, USP,BP, Reag. Ph Eur – Scharlau
Additional information
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POBIERZ KARTĘ PRODUKTU
POBIERZ KARTĘ POZIOMU JAKOŚCI
POBIERZ KARTĘ CHARAKTERYSTYKI PRODUKTU
PRODUCENT: SCHARLAB
Zinc sulfate heptahydrate, extra pure,
– 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 – P264 – P270 – P305+P351+P338 – P501a
– Tariff number: 2833 29 20 00
– Applications: analytical chemistry, laboratory reagent, in galvanotechnia, for deproteinating blood and urine.
SPECIFICATIONS
assay (complexometric): 99,0 – 104,0 %
dried sample): 55,6 – 61,0 %
Identification sulfates: passes test
Identification zinc: passes test
appearance of solution: clear and colourless
acidity: passes test
pH (5 %, H2O): 4,4 – 5,6
alkalies and alkaline earths: max. 0,9 %
chlorides (Cl): max. 300 ppm
arsenic (As): max. 14 ppm
iron (Fe): max. 100 ppm:
lead (Pb): max. 20 ppm
