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7631-86-9

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7631-86-9 Usage

General Description

Different sources of media describe the General Description of 7631-86-9 differently. You can refer to the following data:
1. 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.
2. contains sodium stabilizing counterion

Uses

Different sources of media describe the Uses of 7631-86-9 differently. You can refer to the following data:
1. ▼▲ 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
2. 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.
3. 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.
4. Silicon(IV) oxide, amorphous is used as carriers, processing aids, anti-caking and free-flow agents in animal feed. Defoamer applications such as paint, food, paper, textile and other industrial applications. Synthetic silicon dioxides are used as a rheology control agent in plastics. It is also used to manufacture adhesives, sealants and silicones.
5. 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).
6. SDS mixture of sodium alkyl sulfates consisting chiefly of sodium lauryl sulfate
7. 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.

Chemical Properties

white crystals or powder

Definition

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

Hazard

Not toxic if ingested, inhaled silica dust can cause silicosis; carcinogen.

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.

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

Check Digit Verification of cas no

The CAS Registry Mumber 7631-86-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,3 and 1 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 7631-86:
(6*7)+(5*6)+(4*3)+(3*1)+(2*8)+(1*6)=109
109 % 10 = 9
So 7631-86-9 is a valid CAS Registry Number.
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

7631-86-9Relevant articles and documents

Development of Highly Active Silica-Supported Nickel Phosphide Catalysts for Direct Dehydrogenative Conversion of Methane to Higher Hydrocarbons

Dipu, Arnoldus Lambertus,Nishikawa, Yuta,Inami, Yuta,Iguchi, Shoji,Yamanaka, Ichiro

, p. 199 - 212 (2021/04/19)

The direct dehydrogenative conversion of methane (DCM) to higher hydrocarbons was investigated over silica-supported nickel phosphide catalysts (NixPy/SiO2) over 1023?K. NixPy/SiO2 catalysts were prepared by precipitation method to promote formation of nickel phosphide (Ni2P) as an active phase for the DCM reaction. Characterization studies of the NixPy/SiO2 catalysts with different P/Ni molar ratios were conducted by a X-ray diffraction analysis, a H2-temperature-programmed reduction spectrum, a scanning electron microscopy image, a X-ray absorption spectroscopy and a N2-adsorption measurement. Catalytic activity tests for the DCM reaction were conducted using a conventional fixed-bed reactor. Products of C2H4 (ethylene), C2H6 (ethane), C2H2 (acetylene), C3H6 (propylene), C6H6 (benzene), C7H8 (toluene), C10H8 (naphthalene) and H2 were analyzed by GC-TCD and GC-FID instruments. Different degrees of the Ni2P phase and character were observed for the NixPy/SiO2 catalysts from characterization studies. Data from characterization studies indicated that smaller and dispersed Ni2P particles were obtained by precipitation method as compared to that of impregnation method. NixPy/SiO2 with a molar ratio of P/Ni = 3.0 showed optimum catalytic performance with 3.28% of methane conversion, 1.93% of total product yield, and 60% of selectivity to hydrocarbons. The experimental results of the effects of reaction temperatures on the product distributions and activation energies indicated that the Ni2P phase successfully activated the C–H bond of methane and selectively converted to ethane. Ethane thermally converted to other higher hydrocarbons in the gas phase without the participation of the catalyst. Graphic Abstract: [Figure not available: see fulltext.].

Non-Cryogenic, Ammonia-Free Reduction of Aryl Compounds

-

, (2022/03/31)

A method of reducing an aromatic ring or a cyclic, allylic ether in a compound includes preparing a reaction mixture including a compound including an aromatic moiety or a cyclic, allylic ether moiety, an alkali metal, and either ethylenediamine, diethylenetriamine, triethylenetetramine, or a combination thereof, in an ether solvent; and reacting the reaction mixture at from ?20° C. to 30° C. for a time sufficient to reduce a double bond in the aromatic moiety to a single bond or to reduce the cyclic, allylic ether moiety.

COMPOUND FOR INHIBITING PGE2/EP4 SIGNALING TRANSDUCTION INHIBITING, PREPARATION METHOD THEREFOR, AND MEDICAL USES THEREOF

-

, (2022/03/14)

A compound of formula (I), a preparation method therefor, a pharmaceutical composition containing a derivative thereof, and the therapeutic uses thereof, especially inhibiting PGE2/EP4 signalling transduction and the uses thereof for treating cancer, acute or chronic pain, migraine, osteoarthritis, rheumatoid arthritis, gout, bursitis, ankylosing spondylitis, primary dysmenorrhea, tumour or arteriosclerosis.

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