Product Details
| Product Name: Emulsion Defoamer | CAS No.: 7631-86-9 |
| Min. Order: 1kg | Purity: 99% |
| Supply Ability: 20tons | Release date: 2026/05/23 |
| Appearance: powder | Extract Source: Mint |
| Shelf Life: 2 Years | Origin: China |
| Package: 25kg/Drums or Carton, 1kg or Less/Bag | Color: white |
Product Description:
Product Name: | Silicon dioxide |
CAS: | 7631-86-9 |
MF: | O2Si |
MW: | 60.08 |
EINECS: | 231-545-4 |
Melting point | >1600 °C(lit.) |
Boiling point | >100 °C(lit.) |
bulk density | 200-800kg/m3 |
density | 2.2-2.6 g/mL at 25 °C |
vapor pressure | 13.3hPa at 1732℃ |
refractive index | 1.46 |
Fp | 2230°C |
Specification
| PHYSICAL AND CHEMICAL PROPERTIES | UNITS | LIMITS |
| Color | ---- | White powder |
| SiO2 Content(m/m,%) | % | 99.99 Min |
| Loss on Drying (2 h @ 105oC) | % | 1.5Max |
| Loss on Ignition at 1000oC | % | 1.5Max |
| PH Value | --- | 3.6- 4.5 |
| BET Surface Area | m2/g | 200±25 |
| Sieve Residue on 325 mesh | % | 0.05Max. |
| Average particle size | n m | About 15 |
| Fe2 O3 content(m/m,%) | % | 0.003Max |
| Al2 O3 content(m/m,%) | % | 0.05Max |
| TiO2 content(m/m,%) | % | 0.03Max |
Applications
Silicon dioxide has a wide range of uses, mainly used in the production of glass, water glass, pottery, enamel, refractory materials, aerogel felt, ferrosilicon, type sand, monomorphous silica, cement, etc. In ancient times, silicon dioxide was also used to make glaze and carcasses for porcelain.
Packages & Delivery
packed in 25 kg paper-plastic composite bags or woven bags. It is transported in the form of pallets. Each pallet has 40 bags and a net weight of 1000 kg, Extended packaging on the outside.
We accept International Express--Fedex/DHL/UPS, air shipping and sea shipping
Storage: Storein cool & dry place. Do not freeze. Keep away from strong light and heat.
Shelf life: two years when properly stored.
Shipping method: International express by air, by sea, UPS and EMS service.
Storage: Storein cool & dry place. Do not freeze. Keep away from strong light and heat.
Shelf life: two years when properly stored.
Shipping method: International express by air, by sea, UPS and EMS service.
| Cargo weight | Packing | Shipping method | Lead-time |
| 1-50kg | Below 5kg Use Foil bag; 5-25kg use two layer PP bag,then into master carton or cardboard drum | International express (Fedex/ DHL/UPS) | 1~3 days after payment |
| 100-200kg | 25kg/drum,use two layer PP bag,then into cardboard drum | Air shipping Sea Shipping | 5~7 days after payment |
| Over 500kg | 25kg/drum,use two layer PP bag,then into cardboard drum | Sea shipping | 7~10 days after payment |
FAQ
Q1: How can I get a sample?
A: Free samples is available. You only pay shipping cost.
Q2: Which payment terms do you accept?
A: Payment can be done by T/T, Western Union,Money Gram,etc.
Q3: How to confirm the Product Quality before placing orders?
A: Every product is with professional COA. Please be sure about the quality.If any doubt, sample is available to you to be tested before large quantity order.
Q4: When will my order be shipped?
A: Within 3 working days after the payment.
Q5: How do you treat quality complaint?
First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us,we will
send you free goods for replacement or refund your loss.
Company Profile Introduction
-
You may like
Recommended supplier
| Product name | Price | Suppliers | Update time | |
|---|---|---|---|---|
|
VIP3Y
|
Watson Biotechnology Co.,Ltd
|
2026-07-20 | ||
|
VIP6Y
|
RongNa Biotechnology Co.,Ltd
|
2026-07-19 | ||
|
VIP6Y
|
WUHAN FORTUNA CHEMICAL CO., LTD
|
2026-07-17 | ||
| $100.00 |
VIP2Y
|
HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
|
2026-07-16 | |
| $100.00 |
VIP3Y
|
Henan Fengda Chemical Co., Ltd
|
2026-07-09 | |
|
VIP7Y
|
Univar Solutions(China) Co., Ltd.
|
2026-06-03 | ||
|
VIP4Y
|
TargetMol Chemicals Inc.
|
2026-05-11 | ||
| $6.00 |
HebeiShuoshengImportandExportco.,Ltd
|
2025-07-29 | ||
|
Hebei Chuanghai Biotechnology Co., Ltd
|
2025-06-27 | |||
| $3.50 |
Hebei Andu Technology Com.,Ltd
|
2025-06-16 |
ChinaINQUIRY