Felcosil Hydrated Silica for Toothpaste and Oral Care Applications

Felcosil is a hydrated silica that offers excellent compatibility with other ingredients used in toothpaste formulations.

Item NO.:
Toothpaste Grade
Chemical Formula:
SiO2

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Hydrated silica for Toothpaste as oral care

Chemical Properties

These three toothpaste-grade silica products are high-purity white powders with superior abrasivity, providing effective cleaning and stain removal. They are fully compatible with toothpaste and other personal care ingredients and meet low heavy-metal standards, ensuring safety for oral care applications.

Specifications

Type	Felcosil-TP 28	Felcosil-TP 38	Felcosil-TP 48
Properties	Abrasive	Standard	Thicken
Appearance	White Powder, free of visible foreign matter	White Powder, free of visible foreign matter	White Powder
pH Value, 5% Slurry	6.0-8.5	6.0-8.5	5.5-8.5
Particle Size, pass on sieve 325%	≥96	≥98	≥98
Loss on Drying % in 105℃	≤10
Loss on Ignition in 1000℃	≤8.5
Sodium Sulfate (as Na₂SO₄+Nac), %	≤2.0
Whiteness	≥95	≥95	≥96
Water Absorption, ml/20g	≤30	≤30	≤42
Purity of SiO₂, %	≥96	≥96	≥96
Iron as Fe, mg/kg	≤350	≤350	≤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	140-200	200-250
Apparent Density, g/m	≥0.28	0.2-0.25	0.14-0.2
Refractive Index	1.435-1.460