English name: Silicon dioxide
CAS number: 7631-86-9
Molecular formula: O2Si
Molecular weight: 60.08
EINECS number: 231-545-4
MDL No. : MFCD00148343
Stats
Melting point >1600 °C(lit.)
Boiling point >100 °C(lit.)
Density 2.2-2.6 g/mL at 25 °C
Vapor pressure 13.3hPa at 1732℃
Refractive index 1.46
Flash point 2230°C
Storage conditions 2-8°C
Solubility Practically insoluble in water and in mineral acids except hydrofluoric acid. It dissolves in hot solutions of alkali  hydroxides.
Morphological suspension
Acidity coefficient (pKa)6.65-9.8[at 20 ℃]
Specific gravity 2.2
The color is White to yellow
Odor (Odor)at 100.00? %. odorless
PH 5-8 (100g/l, H2O, 20℃)(slurry)
resistivity 1∞10*20 (ρ/ μω.cm)
Water is insoluble
Sensitivity Hygroscopic
Crystal structure Trigonal
Hydrolysis sensitivity 6: forms irreversible hydrate
Merck14, 8493
Exposure limit NIOSH: IDLH 3000 mg/m3; TWA 6 mg/m3
Stability Stable.

We could give you:

1.Best quality in your requirement

2.Competitive price in China market with standard high quality or customize

3.mature Technical support，Well-trained and professional technologist and sales with rich experience in the field for 5-10 years

4.Professional logistic support，Free sample and correct shipping documents dispatched according to regulations of different countries

All we want is win-win business. Send your inquiries, you will get it!

Why choose us:

1.Factory direct sales, so we can provide the competitive price and high quality product base on 5 years of production and R&D experience

2.It is available in stock for quick shipment. Products could be packaged according to customer’s specialized requirements.

3.The products can be transported by Courier, air or sea.

4.Customers will receive the most professional technical support and efficient service.

5.Any inquiries will be replied within 24hours.

6.High purity with test report.

Qingdao Bravery International Trading Co., LTD. is located in the beautiful tourist city of Qingdao, is a comprehensive chemical enterprise which doing import and export business. Product range including, API, pharmacy intermediates,food additive,Surfactant ,fungicides and other general chemicals. etc.

With the developing world market, we adhere to the principle of "quality, service, integrity and development" ,Forge ahead,and constantly in pursuit of higher level of product quality and service.

We warmly welcome customers home and abroad to build mutual trust, mutual benefit and stable cooperation relation.