TP28 highly abrasive Silica in toothpaste
TP28 highly abrasive Silica in toothpaste
Type: TP28
CAS NO.: 10279-57-9
Property:
1. highly abrasive Silica
2. high polishing Silica
3. Silica in toothpaste
TP28 highly abrasive Silica in toothpaste
Product Name: Silica (raw material of toothpaste )
Type:TP 28
Formula: SiO2
Synonym: highly abrasive, Silica, SiO2, high polishing Silica,raw material of toothpaste
Property:
It is a synthetic silica with superior abrasive power and compatibility with other ingredients.
Its RDA value makes it suitable for those toothpaste formulations which demands high polishing level.
usage method : The transparent toothpaste can be compounded with thickened silica at the dosage of 15-20%.
Properties | Target Values
(Spec Limits) |
Appearance | White Powder, free of visible foreign matter |
PH(5% Slurry) | 6.0-8.5 |
Particle Size, pass on sieve 325% | ≥96 |
Loss on Drying % in 105℃ | ≤10 |
Loss on Ignition in 1000℃ | ≤8.5 |
Sodium Sulfate (as Na2SO4+Nac) % | ≤2.0 |
Whiteness | ≥95 |
Water Absorption ml/20g | ≤30 |
Purity of SiO2 % | ≥96 |
Iron as Fe mg/kg | ≤350 |
Sulfide | Negative |
Heavy Metal as Pb mg/kg | ≤15 |
Arsenic mg/kg | ≤3 |
Total Aerobic Count cfu/g | ≤200 |
Mold &Yeast cfu/g | ≤100 |
Gram Negative Bacill cfu/g | Not Detetive |
Pseudomonas aeruginosa cfu/g | Not Detetive |
S.aureus cfu/g | Not Detetive |
Oil absorption value ml/100g | ≤150 |
Apparent density g/ml | ≥0.28 |
Refractive index | 1.435-1.046 |
Light transmittance% | ≥90 |
Friction value 9000 times of copper wear | 5-8mgCu(RDA120-180) |
Package and storage:
1. Package: 10kg/ bag
2. Storage: Kept in a low temperature, dry and ventilated place, avoid direct sunlight.
3. Shelf life: One year in ventilating, cool and dry area.