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