Zinc sulfate heptahydrate, EMSURE® for analysis, Supelco®

Supplier: MilliporeSigma
Danger


M-Clarity™ quality level = MQ300

1.08883.5000 1.08883.5000 1.08883.0500 1.08883.1000 1.08883.1000 1.08883.0500
EM1.08883.0500EA 429 USD
CA1.08883.5000 EM1.08883.0500 CA1.08883.1000 CA1.08883.0500 EM1.08883.1000 EM1.08883.5000
Zinc sulfate heptahydrate, EMSURE® for analysis, Supelco®
Zinc sulphate heptahydrate

EMSURE® (formerly GR) is a premium grade of reagents for wet chemical analysis, adhering to ACS, ISO, and/or Reag. Ph.Eur quality specifications.


In North America 1.08883.0500 replaces and has a superior specification to ZX0105-1
In North America 1.08883.9050 replaces and has a superior specification to ZX0105-20

Formula: ZnSO₄·7H₂O
MW: 287.54 g/mol
Melting Pt: 100 °C
Density: 1.97 g/cm³ (20 °C)
Storage Temperature: Ambient
MDL Number: MFCD00149894
CAS Number: 7446-20-0
EINECS: 231-793-3
UN: 3077
ADR: 9,III
Merck Index: 12,10293

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Specification Test Results

Assay (complexometric) 99.5-103.0%
Ammonium (NH4) 0.001% max
Arsenic (As) 0.00005% max
Cadmium (Cd) 0.0005% max
Calcium (Ca) 0.001% max
Chloride (Cl) 0.0005% max
Clarity of solution passes test
Copper (Cu) 0.0005 max
Identity passes test
Insoluble matter 0.01% max
Iron (Fe) 0.0005% max
Lead (Pb) 0.001 max
Magnesium (Mg) 0.001% max
Manganese (Mn) 0.0003% max
Minimum shelf life passes test
Nitrate (NO3) 0.002% max
Original Examination Date passes
pH (5%, water, 25°C) 4.4-5.6
Potassium (K) 0.001% max
Sodium(Na) 0.001% max
Total nitrogen (N) 0.0005% max

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