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Zinc sulfate heptahydrate, Pharmpur®, Ph Eur, BP, USP

- 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): 99,0 - 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