Dental Grade
| Sr. No. | Description of Test | Specification / Lmited |
|---|---|---|
| 1 | Appearance | White Free Flowing Powder |
| 2 | Packing | 20 Kg / 25 Kg |
| 3 | pH (5 % w/v) Aq. Sus. | 6.5 to 7.5 |
| 4 | BET Surface area | 160-200 m2/gm |
| 5 | Moisture Content ( at 1050 C for 2 hr ) | 6.0 % ( Max ) |
| 6 | Bulk Density Before Tapping Bulk Density After Tapping |
Gm/ml, 0.08 max. Gm/ml, 0.13 max. |
| 7 | Loss on Ignition (at 10000 C for 2 hrs.on Anhydrous Basis | 6.0 % ( Max ) |
| 8 | SiO2 on Anhydrous Basis 98.0 % ( Min ) | 98.0 % ( Min ) |
| 9 | Soluble Salt | 1.0 % ( Max ) |
| 10 | Refractive Index | 1.4350-1.4600 |
| 11 | Residue on 325 Mesh ( Wet Sieving ) | 2.0 % ( Max ) |
| 12 | Total Heavy Metal ( as Pb ) | Not more than 10 ppm |
| 13 | Linseed Oil Absorption | 250 - 300 (cc/100 gm) |
| 14 | Microbiological Analysis - TVC Microbiological Analysis - Y and M |
NMT 1000 cfu/gm NMT 100 Cfu/gm |
END PROPERTIES:
- Gives thicking effect to opaque & gel toothpaste formulation