Factory wholesale hydrated silica/precipitated silica for mixed type toothpaste
H-170 precipitated silica for toothpaste is amorphous powder, tasteless, insoluble in water or acid, chemically inert, has good solubility with fluoride toothpaste and other raw materials, structure and particle size of silica can be controlled by production conditions, according to different types of toothpaste, respectively produce 3 types: friction type, mixed type and thickening type.
Main specifications and technical data
H-170 series has been tested, it is comply with the light industry standard of People's Republic of China QB/T2346-97
ITEM
|
Friction type
|
Mixed type
|
Thickening type
|
SiO
2
(
dried
)
|
≥
95
|
≥
98
|
≥
98
|
Apperance
|
White Powder
|
White Powder
|
White Powder
|
Whiteness %
|
≥
93
|
≥
98
|
≥
98
|
PH Vaule (5% water dispersion)
|
6.5-8.5
|
6.5-8.5
|
6.5-8.5
|
Pass 320 Mesh Screen %
|
≥
98
|
≥
99
|
≥
99
|
Loss on Drying
(
105
ºC)
|
≤
10
|
≤
10
|
≤
10
|
Loss on Ignition
(
900
ºC)
%
|
≤
8.3
|
≤
6
|
≤
6
|
Drink Value ml/20g
|
17-20
|
30-42
|
45-60
|
Na
2
SO
4
content %
|
≤
0.4
|
≤
0.4
|
≤
0.4
|
NaCl content %
|
≤
0.1
|
≤
0.1
|
≤
0.1
|
Sulfide Content
|
None
|
None
|
None
|
Heavy Metals(Pb) Content
|
≤
20
|
≤
20
|
≤
20
|
As Content mg/kg
|
≤
2
|
≤
2
|
≤
2
|
Bacilli cfu/g
|
≤
200
|
≤
200
|
≤
200
|
Hydrated silica
is a common ingredient found in many personal care products, including cosmetics and toothpaste. It's an abrasive, an absorbent, and a bulking agent in personal care product formulas and is perfectly safe to use in toothpaste.
What Does Hydrated Silica in Toothpaste Do? Depending on the specific formulation and particle size, hydrated silica can have several uses in both natural and conventional toothpaste. According to an article in the Journal of the Pakistan Dental Association, hydrated silica acts as an abrasive to help to remove plaque and other particles from your teeth when brushing with toothpaste. Besides aiding in the removal of plaque and food particles, abrasives like hydrated silica can also help to remove stains, which makes them useful as whitening agents in toothpastes as well. Abrasives used in toothpaste date back over 2000 years, where paste mixtures were once made with bones and ground shells. In addition to removing particles and minimizing stains on your teeth, hydrated silica can also act as a thickening agent to help form the toothpaste's consistency.
Is Hydrated Silica Safe?
While the word "abrasive" may sound scary, these ingredients are designed to help scrub away plaque and stains without harming your teeth. Hydrated silica is an ingredient that has been in use for a long time and which the Food and Drug Administration (FDA) lists as Generally Recognized As Safe (GRAS). According to the FDA's Select Committee on GRAS Substances, silicates are biologically inert, which means they don't create a reaction in the body, and there is no evidence to suggest that they could pose a hazard. Not only is hydrated silica safe to use every day in oral care products, but you can also feel confident choosing products with this ingredient because it is derived from one of the most abundant natural materials on the planet, making it a renewable natural source. The Environmental Working Group also gives hydrated silica a score of one out of ten, which means that it poses the lowest possible hazard to people and the environment based on their data.