Toothpaste Grade Silica

◆Description of products

Precipitated toothpaste grade silica is amorphous white powder, are soluble in water and acid, with  chemical inertness，and has good compatibility with other materials and fluoride in toothpaste, can annually produce 1500 tons in 2013.These products are mainly used in toothpaste, food, medicine and so on.

◆Description of products

Silica can be used as filler and abradant in transparent coloring or opaque toothpastes. Such toothpastes enjoy good flexibility and dispensability, and the paste show great smoothness, softness and abrasiveness. The silica can maintain the medicine property of medicinal toothpastes, and it demonstrates nice compatibility with fluoride in the paste which can avoid insoluble salts caused by calcium salt as abradant.

◆The specification, feature and application

Item	specification	specification
Grade	GS-70(abrasive)	GS-701(thickening)
Process	precipitated	precipitated
Form	White powder	White powder
Whiteness	≥96	≥96
SIO2 content	≥98	≥98
PH value	≥7	≥7
Average particle size um	13-15um	9-11um
Heating loss%    105℃2h	≤8	≤6
Ignition loss％   900℃2h	≤8.5	≤6.5
DBP absorption oil value ml/20g	18-20	40-60
Na2SO4 content %	≤0.4	≤0.4
Sulfide content	naught	naught
Iron content mg/kg	149	149
NaCl content%	≤0.1	≤0.1
Heavy metal content mg/kg	≤15	≤15
As content       mg/kg	≤2.0	≤2.0
Germ    cfu/ g	≤200	≤200
Health certification No.	LWSZZ(2007) No. 370000-000082	LWSZZ(2007) No. 370000-000082
Produce certification No.	XK13-217-00815	XK13-217-00815
Application scopes	Widely used in toothpaste, the configuration and particle size of silicon dioxide can be controlled in producing, also controlled the polishing effect, easy to produce, it has good cleaning effect and also not damage teeth, another characteristic of silicon dioxide is can be used in producing transparency toothpaste.