Silica TP 28 for High Brasive Toothpaste Formulations

Silica TP 28 is a synthetic silica with superior abrasive power and compatibility with other ingredients. 

  • Item NO.:

    TP 28
  • Chemical Formula:

    SiO2 nH2O

Silica TP 28 for High Brasive Toothpaste Formulations

 

Chemical Properties

Silica TP 28 is a synthetic silica with superior abrasive power and compatibility with other ingredients. 

 

Specifications

Items

Unit

Specification

Appearance

-

White Powder, free of visible foreign matter

pH Value 

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/m

≥0.28

Refractive Index

-

1.435-1.046

Light Transmittance

%

≥90

Friction Value 9000 Times of Copper Wear 

-

5-8mgCu(RDA120-180)

 

Application

Silica TP 28 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%. 

Silica TP 28 for High Brasive Toothpaste Formulations

 

1.  Package: 20kg/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.

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