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Chemical Formula:SiO2
CAS NO:7631-86-9
HS Code: 28112200
Tooth Grade - SDE Series
Silicon dioxide for SDE series’ toothpaste is amorphous powder, which is tasteless and insoluble in water or
acid, showing as chemical inertness, with good compatibility with fluoride and other materials in toothpaste.
The structure and particle size of silicon dioxide can be controlled by production condition. By aiming at
different types of toothpaste,Supply Printed Circuit Board Technology - printed circuit board flexible pcb manufacturers for led strips - FASTPCBA Technology Co., Ltdmade: friction type, mixed type and thickening type.
Product Series |
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Type |
|
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Wholesale Circuit Card Suppliers, Manufacturers, Factory - FR4 Double sided PCB board Circuit Board 0.8/1.0/1.2/1.5Thickness SMT SMD for driver board - FASTPCBA Technology Co., Ltd- SDE715 |
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DBP |
cm3/ 100g |
80~95 |
85~110 |
60~80 |
95~115 |
125~175 |
175~200 |
200~260 |
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% |
≥98 |
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Drying Loss |
% |
4.0~7.0 |
|||||||||||
Ignition loss (dry basis) |
% |
≤7.0 |
≤6.0 |
≤6.0 |
|||||||||
pHï¼5% aqueous solutionï¼ |
|
7.2~8.5 |
|||||||||||
D50 |
um |
4~15 |
|||||||||||
Sieve Residue 45um |
% |
≤1.5 |
≤1.5 |
≤1.5 |
|||||||||
Cl |
mg/kg |
≤0.1 |
≤0.1 |
≤0.1 |
|||||||||
Na2O |
mg/kg |
≤1 |
≤1 |
≤1 |
|||||||||
Na2SO4 |
mg/kg |
≤0.4 |
≤0.4 |
≤0.4 |
|||||||||
Fe2O3 |
ppm |
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Al2O3 |
ppm |
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|
≤1.0 |
≤1.0 |
≤1.0 |
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Microbial Content |
|
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Pb |
|
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As |
|
≤2 |
≤2 |
≤2 |
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Hg |
|
≤3 |
≤3 |
≤3 |