Physical Properties
Chemical Properties
| Sinkers | 5 % Max |
| Moisture | 1 % Max |
| Bulk Density(KG/M3) | 350 – 450 |
| Compressive Strength | 180 – 280(Kg/cm2) |
| Shape | Spherical |
| Color Light Grey | Light white |
| Oil Absorption | 16-18 G/100G |
| Melting Point | 1350C |
| Hardness(Moh’s) | 5 – 6 |
| PH in water | 6 – 7 |
| Sio2 | 52-64 % |
| Al2o3 | 32-36 % |
| Cao | 0.1-0.5 % |
| K2o | 1.2-2.2 % |
| Fe2o3 | 1-2 % |
| Tio2 | 0.8-1.2 % |
| Mgo | 1-2 % |
| Na2o | 1-2 % |