Ferrous Sulphate Septihydrate Cas: 7782-63-0
| Catalog Number | XD91846 |
| Product Name | Ferrous Sulphate Septihydrate |
| CAS | 7782-63-0 |
| Molecular Formula | FeH14O11S |
| Molecular Weight | 278.01 |
| Storage Details | 15-25°C |
| Harmonized Tariff Code | 28332950 |
Product Specification
| Appearance | Slightly greenish to blue powder |
| Assay | 99% min |
| Melting point | 64 °C |
| density | 1.898 g/mL at 25 °C (lit.) |
| vapor pressure | 14.6 mm Hg ( 25 °C) |
| solubility | 25.6 g/100 mL (20°C) |
| Specific Gravity | 1.898 |
| PH | 3.0-4.0 (25℃, 50mg/mL in H2O) |
| Water Solubility | 25.6 g/100 mL (20 ºC) |
| Sensitive | Air Sensitive & Hygroscopic |
| Stability | Stable. Substances to be avoided include strong oxidizing agents. Air and moisture sensitive. |
Used in quantitative analysis of nitrates .
In manufacture of Fe, Fe Compounds, other sulfates; in Fe electroplating baths; in fertilizer; as food and feed supplement; in radiation dosimeters; as reducing agent in chemical processes; as wood preservative; as weed-killer; in prevention of chlorosis in plants; in other pesticides; in writing ink; in process engraving and lithography; as dye for leather; in etching aluminum; in water treatment; in qualitative analysis ("brown ring" test for nitrates); as polymerization catalyst.
Iron(II) sulfate heptahydrate is used as a precursor to prepare other iron compounds such as a lawn conditioner and a mordant for wool dyeing. It is actively used in the manufacture of ink including iron gall ink. As a reducing agent, it participates in the reduction of chromate in cement. It is also used in industrial water treatment plants to remove phosphate. It is also used in the gold refining process to precipitate metallic gold. Woodworkers use aqueous solutions of ferrous sulfate to color maple wood a silvery hue. It finds application in the treatment of iron chlorosis, which arises due to deficiency of iron in horticulture.
