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
441.87
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 |
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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