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 |
