Zinc Sulphate - Heptahydrate :
Physical & Chemical Properties
APPEARANCE
| State | Divided Solid | Molecular Weight | 179.44 |
| Melting Range (ºC) | 100 (.7H20) | Viscosity | Not Applicable |
| Boiling Range (ºC) | >500 decomposes | Solubility in water (g/L) | Miscible |
| Flash Point (ºC) | Not Applicable | pH (1% solution) | 4.0-5.2 (5%). |
| Decomposition Temp (ºC) | >500 | pH (as supplied) | Not Applicable |
| Autoignition Temp (ºC) | Not Applicable | Vapour Pressure (kPa) | Negligible |
| Upper Explosive Limit % | Not Applicable | Specific Gravity (water=1) | 3.35 |
| Lower Explosive Limit % | Not Applicable | Relative Vapour Density (air=1) | Not Applicable |
| Volatile Component (%vol) | Negligible | Evaporation Rate | Not Applicable |
