Specification of Aluminum Sulphate
|
|
| CAS No. |
10043-01-3 |
| EINECS No. |
233-135-0 |
| Formula |
Al2(SO4)3 |
| Mol Wt. |
342.14 |
| H.S. Code |
2833.22 |
| Physical and Chemical Properties |
| Physical State |
white to off-white lump or powder |
| Melting Point |
770 °C (Decomposes) |
| Specific Gravity |
2.7 |
| Solubility In Water |
Soluble |
| pH |
>2.9 (5% solution) |
| Flash Point |
Not considered to be a fire hazard |
| Stability |
Stable under ordinary conditions |
| FERRIC |
| Aluminium (as Al2O3) |
17.0 ~ 18.0% |
| Iron Compound |
0.5% max |
| Insolubles In Water |
0.3% max |
| pH |
2.7 ~ 3.7 (5% Sol.) |
| Heavy Metal (as Pb) |
10ppm max |
| Arsenic (as As) |
3ppm max |
| NON-FERRIC |
| Aluminium (as Al2O3) |
17.0 ~ 18.0% |
| Iron Compound |
0.03% max |
| Insolubles In Water |
0.3% max |
| pH |
2.8 ~ 3.8 (5% Sol.) |
| Heavy Metal (as Pb) |
10ppm max |
| Arsenic (as As) |
3ppm max |
