Zinc Sulfate Heptahydrate for Analysis 500g
for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 108883.0500
Stock: In Stock
Description
Catalogue Number | 108883 |
Replaces | ZX0105; ZX0105-1; ZX0105-20 |
Synonyms | Zinc vitriol |
Description | Zinc sulfate heptahydrate |
Product Information
CAS number | 7446-20-0 |
EC index number | 030-006-00-9 |
EC number | 231-793-3 |
Grade | ACS,ISO,Reag. Ph Eur |
Hill Formula | O₄SZn * 7 H₂O |
Chemical formula | ZnSO₄ * 7 H₂O |
Molar Mass | 287.54 g/mol |
HS Code | 2833 29 20 |
Physicochemical Information
Density | 1.97 g/cm3 (20 °C) |
Melting Point | 100 °C |
pH value | 4 - 6 (50 g/l, H₂O, 20 °C) |
Bulk density | 800 - 1000 kg/m3 |
Solubility | 965 g/l |
Toxicological Information
LD 50 oral | LD50 Rat 1260 mg/kg |
Storage and Shipping Information
Storage | Store at +5°C to +30°C. |
Specifications
Assay (complexometric) | 99.5 - 103.0 % |
Identity | passes test |
Appearance of solution | passes test |
Insoluble matter | ≤ 0.01 % |
pH-value (5 %; water, 25 °C) | 4.4 - 5.6 |
Chloride (Cl) | ≤ 0.0005 % |
Total nitrogen (N) | ≤ 0.0005 % |
Nitrate (NO₃) | ≤ 0.002 % |
As (Arsenic) | ≤ 0.00005 % |
Ca (Calcium) | ≤ 0.001 % |
Cd (Cadmium) | ≤ 0.0005 % |
Cu (Copper) | ≤ 0.0005 % |
Fe (Iron) | ≤ 0.0005 % |
K (Potassium) | ≤ 0.001 % |
Mg (Magnesium) | ≤ 0.001 % |
Mn (Manganese) | ≤ 0.0003 % |
Na (Sodium) | ≤ 0.001 % |
NH₄ (Ammonium) | ≤ 0.001 % |
Pb (Lead) | ≤ 0.001 % |
Corresponds to ACS, ISO, Reag. Ph Eur |