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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,China Pcb Enclosure - High Quality PCBA Circuit Board Manufacturer,PCB Fabrication and SMT PCBA Assembly - FASTPCBA Technology Co., Ltdmade: friction type, mixed type and thickening type.
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Product Series |
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Type |
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Wholesale Prototype Printed Circuit Board - Best Quality and Best Price!~Smart Bes~MCU Printed Circuit Board with HAL Surface Finish, Measures 286 x 149mm - FASTPCBA Technology Co., Ltd- SDE711 |
Wholesale Prototype Printed Circuit Board - Best Quality and Best Price!~Smart Bes~MCU Printed Circuit Board with HAL Surface Finish, Measures 286 x 149mm - FASTPCBA Technology Co., Ltd- SDE712 |
Wholesale Prototype Printed Circuit Board - Best Quality and Best Price!~Smart Bes~MCU Printed Circuit Board with HAL Surface Finish, Measures 286 x 149mm - FASTPCBA Technology Co., Ltd- SDE713 |
Wholesale Prototype Printed Circuit Board - Best Quality and Best Price!~Smart Bes~MCU Printed Circuit Board with HAL Surface Finish, Measures 286 x 149mm - FASTPCBA Technology Co., Ltd- SDE714 |
Wholesale Prototype Printed Circuit Board - Best Quality and Best Price!~Smart Bes~MCU Printed Circuit Board with HAL Surface Finish, Measures 286 x 149mm - FASTPCBA Technology Co., Ltd- SDE715 |
Wholesale Prototype Printed Circuit Board - Best Quality and Best Price!~Smart Bes~MCU Printed Circuit Board with HAL Surface Finish, Measures 286 x 149mm - FASTPCBA Technology Co., Ltd- SDE716 |
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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 |
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Ignition loss (dry basis) |
% |
≤7.0 |
≤6.0 |
≤6.0 |
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pH（5% aqueous solution） |
|
7.2~8.5 |
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D50 |
um |
4~15 |
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Sieve Residue 45um |
% |
≤1.5 |
≤1.5 |
≤1.5 |
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Cl |
mg/kg |
≤0.1 |
≤0.1 |
≤0.1 |
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Na2O |
mg/kg |
≤1 |
≤1 |
≤1 |
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Na2SO4 |
mg/kg |
≤0.4 |
≤0.4 |
≤0.4 |
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Fe2O3 |
ppm |
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China Pcb Layers - 3w 5w 7w 9w 12w 15w 18w 5730SMD 2835SMD LED PCB Circuit Board - FASTPCBA Technology Co., Ltd |
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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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China Pcb Layers - 3w 5w 7w 9w 12w 15w 18w 5730SMD 2835SMD LED PCB Circuit Board - FASTPCBA Technology Co., Ltd |
China Pcb Layers - 3w 5w 7w 9w 12w 15w 18w 5730SMD 2835SMD LED PCB Circuit Board - FASTPCBA Technology Co., Ltd |
China Pcb Layers - 3w 5w 7w 9w 12w 15w 18w 5730SMD 2835SMD LED PCB Circuit Board - FASTPCBA Technology Co., Ltd |
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Pb |
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As |
|
≤2 |
≤2 |
≤2 |
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Hg |
|
≤3 |
≤3 |
≤3 |
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