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Product FOB Price Min.Order Supply Ability Supplier
SiO2
Cas No: 7631-86-9
USD $ 1.0-1.0 / Kilogram 1 Kilogram 1-500 Metric Ton/Year Chemwill Asia Co., Ltd. Contact Supplier
Silicon dioxide
Cas No: 7631-86-9
USD $ 3.0-3.0 / Kilogram 1 Kilogram 1-100 Metric Ton/Month Dayang Chem (Hangzhou) Co.,Ltd. Contact Supplier
Silica Sol
Cas No: 7631-86-9
No Data 1 Kilogram Metric Ton/Day QINGDAO HONG JIN CHEMICAL CO.,LTD. Contact Supplier
High purity Silicon dioxide with high quality and best price cas:7631-86-9
Cas No: 7631-86-9
USD $ 7.0-35.0 / Kilogram 1 Kilogram 99999 Kilogram/Year Hangzhou Dingyan Chem Co., Ltd Contact Supplier
High quality Silicon Dioxide supplier in China
Cas No: 7631-86-9
No Data 1 Kilogram 20000 Metric Ton/Year Simagchem Corporation Contact Supplier
China Supplier Horsetail Extract powder Silica powder 10:1
Cas No: 7631-86-9
USD $ 11.0-15.0 / Kilogram 25 Kilogram 55 Metric Ton/Month Xi'an Quanao Biotech Co., Ltd. Contact Supplier
Factory price Cosmetic SOLUM DIATOMEAE 7631-86-9 Manufacturer
Cas No: 7631-86-9
USD $ 0.1-0.1 / Gram 1 Gram 100 Metric Ton/Year Xi'an Xszo Chem Co., Ltd. Contact Supplier
Silica Gel (Spherical, 60Micro M) [for Flash ChroMatography]
Cas No: 7631-86-9
No Data 1 Kilogram 20 Metric Ton/Week Henan Allgreen Chemical Co.,Ltd Contact Supplier
Silicon Dioxide
Cas No: 7631-86-9
USD $ 2.0-3.0 / Kilogram 1 Kilogram 50 Metric Ton/Day EAST CHEMSOURCES LIMITED Contact Supplier
Factory Supply silicon dioxide; synthetic amorphous silicon dioxide (nano)
Cas No: 7631-86-9
No Data 1 1 Ality Chemical Corporation Contact Supplier

7631-86-9 Usage

Purification Methods

Purification of silica for high technology applications uses isopiestic vapour distillation from concentrated volatile acids and is absorbed in high purity water. The impurities remain behind. Preliminary cleaning to remove surface contaminants uses dip etching in HF or a mixture of HCl, H2O2 and deionised water [Phelan & Powell Analyst 109 1299 1984].

Uses

manufacture of glass, water glass, refractories, abrasives, ceramics, enamels; decolorizing and purifying oils, petroleum products, etc.; in scouring- and grinding-compounds, ferrosilicon, molds for castings; as anticaking and defoaming agent.

Uses

Functionalized RAFT agent for controlled radical polymerization; especially suited for the polymerization of styrene; acrylate and acrylamide monomers. Azide group can be used to conjugate to a variety of alkyne-functionalized biomolecules. Chain Transfer Agent (CTA).

Uses

Silica (SiO2) (RI: 1.48) is mined from deposits of diatomaceous soft chalk-like rock (keiselghur). This is an important group of extender pigments, which is used in a variety of particle sizes. They are used as a flatting agent to reduce gloss of clear coatings and to impart shear thinning flow properties to coatings. They are relatively expensive.

Chemical Properties

Diatomaceous earth is a transparent to gray, odorless amorphous powder.

Chemical Properties

white crystals or powder

Chemical Properties

Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder

Uses

▼▲ Industry Application Role/benefit Food Powdered foods, such as salt, many spices, etc. Ant-caking agent/ when added to a mixture, prevents its ingredients from binding together Nutritional health food supplements Source of silicon/maintain healthy strong bones and joints and minimizes aluminum effects on the body Wine, beer and juice Fining agent Chemical manufacture Manufacture of silicon compounds and sodium silicate Raw material Construction Production of portland cement Raw material Sand casting Main ingredient/high melting point Glass High purity silica glass Raw material/high temperature and corrosion resistance Domestic glass and optical devices Essential component Ceramics Manufacture of ceramic glaze Main constituents/forms glass when heated to bind others ingredients together Metallurgy Manufacture of silicon alloys Raw material or additive Pharmaceutical Drug tablets making Flow agent/aids powder flow when tablets are formed Preventing Alzheimer’s disease Effective components/minimizes aluminum effects on the body which may cause Alzheimer’s disease Electronics Fiber optic cables Raw material/high level of heat conductivity and low rate of transmission loss Wire insulation Raw material/high melting point and good insulating property Semi-conductors Source of silicon Piezoelectric transducer Main component/can convert mechanical energy to electrical energy and vice-versa Others Refractory materials Main component/high melting point and high shock resistance Rubber and plastics Additive/improves wearing capacity DNA Extraction Source of silicon/has binding properties which help to isolate the strands of DNA Manufacture of silica gel Source of silicon/hygroscopic property Defoaming Defoamer component Silica-based aerogel Source of silicon Hydraulic fracturing Thickening agent

Incompatibilities

Silica, amorphous is a noncombustible solid. Generally unreactive chemically. Incompatible with fluorine, oxygen difluoride, chlorine trifluoride. Soluble in molten alkalis and reacts with most metallic oxides at high temperature.

General Description

Silicon dioxide occurs almost everywhere on earth. It is one of the most important and abundant oxides on earth, constituting about 60% weight of the earth’s crust as silica itself or in combination with other metal oxides in silicates. It commonly is found as sand in the vast ocean and river shores, their beds, deserts, rocks, and minerals. Silicon dioxide exists in several structural forms: polymorphic crystalline silica, synthetic quartz crystals, amorphous silica, and vitreous silica. This classification is not complete as there are other forms of silica synthesized for specialized applications.

Waste Disposal

Sanitary landfill.

Potential Exposure

Diatomaceous earth is used as a filtering agent and as a filler in construction materials, pesticides, paints, and varnishes. The calcined version (which has been heat treated) is the most dangerous and contains crystallized silica, and should be handled as silica. See also other entries on silica

Shipping

This material is not singled out by DOT in its Performance-Oriented Packaging Standards.

Safety Profile

The pure unaltered form is considered a nuisance dust. Some deposits contain small amounts of crystahne quartz and are therefore fibrogenic. When diatomaceous earth is calcined (with or without fluxing agents) some sdica is converted to cristobalite and is therefore fibrogenic. Tridymite has never been detected in calcined batomaceous earth. See also other silica entries

Uses

silica is also known as silicone dioxide. Silica has a variety of applications: to control a product’s viscosity, add bulk, and reduce a formulation’s transparency. It can also function as an abrasive. In addition, it can act as a carrier for emollients, and may be used to improve a formulation’s skin feel. Spherical silica is porous and highly absorbent, with absorption capabilities roughly 1.5 times its weight. A typical claim associated with silica is oil control. It is found in sunscreens, scrubs, and wide range of other skin care, makeup, and hair care preparations. It has been successfully used in hypoallergenic and allergy-tested formulations.

Definition

ChEBI: A silicon oxide made up of linear triatomic molecules in which a silicon atom is covalently bonded to two oxygens.

Agricultural Uses

Silica is silicon dioxide, one of the most abundant materials on the earth's crust. Quartz is an example of silica. It is used as a filler in fertilizers, and also, in the manufacture of glass, ceramics, abrasives, rubber and cosmetics.

Uses

SDS mixture of sodium alkyl sulfates consisting chiefly of sodium lauryl sulfate

Hazard

Not toxic if ingested, inhaled silica dust can cause silicosis; carcinogen.
InChI:InChI=1/O2Si/c1-3-2

7631-86-9 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Alfa Aesar (10856)  Silicon(IV) oxide, Puratronic?, 99.999% (metals basis)    7631-86-9 25g 1683.0CNY Detail
Alfa Aesar (10856)  Silicon(IV) oxide, Puratronic?, 99.999% (metals basis)    7631-86-9 100g 3216.0CNY Detail
Alfa Aesar (44386)  Silica gel desiccant, -3+8 Mesh Granules    7631-86-9 250g 134.0CNY Detail
Alfa Aesar (44386)  Silica gel desiccant, -3+8 Mesh Granules    7631-86-9 1kg 380.0CNY Detail
Alfa Aesar (44386)  Silica gel desiccant, -3+8 Mesh Granules    7631-86-9 5kg 1537.0CNY Detail
Alfa Aesar (44387)  Silica gel desiccant, -6+12 mesh granules    7631-86-9 250g 217.0CNY Detail
Alfa Aesar (44387)  Silica gel desiccant, -6+12 mesh granules    7631-86-9 1kg 554.0CNY Detail
Alfa Aesar (44387)  Silica gel desiccant, -6+12 mesh granules    7631-86-9 5kg 2361.0CNY Detail
Alfa Aesar (44389)  Silica gel desiccant, indicating, -6+16 mesh granules    7631-86-9 250g 190.0CNY Detail
Alfa Aesar (44389)  Silica gel desiccant, indicating, -6+16 mesh granules    7631-86-9 1kg 561.0CNY Detail
Alfa Aesar (44389)  Silica gel desiccant, indicating, -6+16 mesh granules    7631-86-9 5kg 2231.0CNY Detail
Alfa Aesar (40381)  Silica gel desiccant, indicating, ACS    7631-86-9 100g 411.0CNY Detail

7631-86-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name silicon dioxide

1.2 Other means of identification

Product number -
Other names Silicon dioxide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:7631-86-9 SDS

7631-86-9Synthetic route

5-bromo-6-(imidazolin-2-ylamino)-quinoxaline
59803-98-4

5-bromo-6-(imidazolin-2-ylamino)-quinoxaline

SKF 190851
134892-42-5

SKF 190851

Conditions
ConditionsYield
In methanol86%
In methanol86%
In methanol86%
palladium (II) nitrate

palladium (II) nitrate

orthotelluric acid
7803-68-1

orthotelluric acid

Reaxys ID: 11464643

Reaxys ID: 11464643

Conditions
ConditionsYield
Stage #1: palladium (II) nitrate; orthotelluric acid; SiO2 In water
Stage #2: at 50 - 400℃; for 8h;
Stage #3: With hydrogen at 400℃; for 5h;
ZSM-5

ZSM-5

H-type ZSM-5(1)

H-type ZSM-5(1)

Conditions
ConditionsYield
With water at 750℃; for 4h;
aluminium trinitrate
7784-27-2

aluminium trinitrate

N,N,N',N'-tetramethylhexamethylenediamine
111-18-2

N,N,N',N'-tetramethylhexamethylenediamine

hydrogen fluoride
7664-39-3

hydrogen fluoride

water
7732-18-5

water

boric acid
11113-50-1

boric acid

N,N,N,N',N',N'-hexamethyl-1,6-hexanediammonium dihydroxide

N,N,N,N',N',N'-hexamethyl-1,6-hexanediammonium dihydroxide

silicate ITQ-13, boron form

silicate ITQ-13, boron form

coated solid pesticide B

coated solid pesticide B

coated solid pesticide A

coated solid pesticide A

coated solid pesticide C

coated solid pesticide C

composition D

composition D

5-bromo-2'-deoxyuridine
59-14-3

5-bromo-2'-deoxyuridine

5-amino-2'-deoxyuridine
5536-30-1

5-amino-2'-deoxyuridine

Conditions
ConditionsYield
With pyridine; sulfuric acid; ammonia In methanol; dichloromethane
maleic anhydride
108-31-6

maleic anhydride

p-phosphoric acid

p-phosphoric acid

cyclohexylamine
108-91-8

cyclohexylamine

N-cyclohexylmaleimide
1631-25-0

N-cyclohexylmaleimide

Conditions
ConditionsYield
In 5,5-dimethyl-1,3-cyclohexadiene
piperidine
110-89-4

piperidine

2,6-dihydroxylacetophenone
699-83-2

2,6-dihydroxylacetophenone

4-tert-Butylbenzaldehyde
939-97-9

4-tert-Butylbenzaldehyde

4'-tert-butyl-5-hydroxyflavanone

4'-tert-butyl-5-hydroxyflavanone

Conditions
ConditionsYield
With hydrogenchloride; boric acid In methanol; ethanol; diethylene glycol dimethyl ether; water; acetone11.1 g (40.0 mmol, 74%)
resquimod
144875-48-9

resquimod

triacetylglycerol
102-76-1

triacetylglycerol

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