CAS No.: | 7631-86-9 |
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Formula: | Sio2 |
EINECS: | 231-545-4 |
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Product Technical Specification
Prodct type |
Silicon Dioxide on Toothpaste Class (thickening) |
Silicon Dioxide on Toothpaste Class (friction) |
Silicon Dioxide on Toothpaste Class (mixed type) |
Appearance |
White powder |
White powder |
White powder |
PH value (5% water-solubility) |
5.5~7.5 |
6.5~8.5 |
6.5~8.5 |
Fineness % |
Get through 320 mesh screen ≥98 |
Get through 320 mesh screen ≥98 |
Get through 320 mesh screen ≥98 |
Loss on drying(105ºC)% |
≤10 |
≤10 |
≤10 |
Loss on ignition (900 ºC) % |
≤8.3 |
≤8.3 |
≤8.3 |
Sulfate % |
≤0.4 |
≤0.4 |
≤0.4 |
Chloride % |
≤0.1 |
≤0.1 |
≤0.1 |
WhitenessWG, % |
≥93 |
≥93 |
≥93 |
Soakage ml/20g |
54~60 |
17~20 |
30~42 |
Content of Sio2 % |
≥96 |
≥96 |
≥96 |
Iron% |
≤0.02 |
≤0.02 |
≤0.02 |
Refractive index (20ºC) |
1.435~1.460 |
1.435~1.460 |
1.435~1.460 |
Apparent densityg/ml |
0.15~0.20 |
≥0.30 |
≥0.30 |
Other heavy metals (Pb) mg/kg |
≤20 |
≤20 |
≤20 |
Arsenic mg/kg |
≤2 |
≤2 |
≤2 |
total number of bacteriaCfu/g |
≤200 |
≤200 |
≤200 |
The application of structure and granularity of silicon dioxide in toothpaste can be controlled depending on reaction condition. Its friction is also controlled. It can be produced into toothpaste which possesses cleaning power and does not harm dentin. Another feature of silicon dioxide is for making transparent toothpaste. Refractive index of silicon dioxide is from 1.43 to 1.45. When the refractive index of toothpaste which consits of water, sorbitol and glycerinum, is equal to silicon dioxide's, the toothpaste looks very transparent.
★ We are manufacturer of Silica for various uses, such as food grade silica, matting powder, hydrophobic, fumed silica, ultrafine silica etc. We have possess a high-quality management team.
★ Produce white carbon black (Silica) for various uses. Our product is continuously growing to diversity your needs.
★ Based on our advanced equipment and production line. All index abides by International Quality Standard.
★ We have provided our good products to hundreds of customers from 50 countries or more.
★ Our silica are well praised by domestic and foreign customers.
We have a full set of quality system certification, food safety management system certification etc.
☆1. Q:What is your delivery time ?
A:The delivery time is usually within 3 days after payment.
☆2.Q: How is the quality of the product?
A: Yes, we have SGS Factory Certification, ISO 9001 Quality management system certificate and ISO 22000 Food safety
management system certificate . If our silica are not good, how can we pass these testing.
☆3.Q: Are the product parameters standard?
A: Yes.
☆4. Q: How about the samples ? is it free or extra fees?
A:Yes, usually samples are free to customers. Freight charge would be collected in your side.
☆5.Q:Is there any aftersales service?
A: Yes, we will provide the after sales service; so if there is any confusion or problem during your usage process, pls feel free
to contact us anytime, we will do our best support.
☆6. Q: Do you also provide delivery to my port?
A: Yes, we can. But please note the sea freight and is provide by shipping line, not us can control, and we'll try our
best to find a workable one.