SILICA
- Product Name
- SILICA
- CAS No.
- 14464-46-1
- Chemical Name
- SILICA
- Synonyms
- SIO2;KIESELGUHR;SILICON OXIDE;SAND;QUARTZ SAND;SILICA GEL 60;CRISTOBALITE;SILICA SAND;SILICON (IV) OXIDE;DESICCANT
- CBNumber
- CB5199387
- Molecular Formula
- O2Si
- Formula Weight
- 60.08
- MOL File
- 14464-46-1.mol
SILICA Property
- Melting point:
- 1610 °C(lit.)
- Boiling point:
- >100 °C(lit.)
- Density
- 2.6 g/mL at 25 °C(lit.)
- refractive index
- n20/D 1.544(lit.)
- storage temp.
- 2-8°C
- solubility
- insoluble in H2O, acid solutions; soluble in HF
- form
- tablets (~0.5 g each)
- color
- colorless hexagonal, hexane crystals, crystalline
- crystal system
- square
- Space group
- P42212
- Lattice constant
a/nm b/nm c/nm α/o β/o γ/o V/nm3 0.498 0.498 0.694 90 90 90 0.1721 - InChIKey
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N
- EPA Substance Registry System
- Cristobalite (14464-46-1)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H372Causes damage to organs through prolonged or repeated exposure
- Precautionary statements
-
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P314Get medical advice/attention if you feel unwell.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- NIST1879A
- Product name
- Respirable cristobalite
- Purity
- NIST? SRM? 1879a, quantitative X-ray powder diffraction standard
- Packaging
- 5G
- Price
- $1780
- Updated
- 2024/03/01
- Product number
- M014-0-01
- Product name
- Silicon(IV) oxide
- Purity
- 99.999%
- Packaging
- 25g
- Price
- $112
- Updated
- 2021/12/16
- Product number
- M014-0-01
- Product name
- Silicon(IV) oxide
- Purity
- 99.999%
- Packaging
- 100g
- Price
- $192
- Updated
- 2021/12/16
SILICA Chemical Properties,Usage,Production
Chemical Properties
Silicon dioxide/crystalline silica is a component of many mineral dusts and materials which melts to a glass at very high temperature.
Uses
Because of its unique physical and chemical properties, crystalline silica has many uses. Commercially produced silica products include quartzite, tripoli, ganister, chert, and novaculite. Crystalline silica also occurs in nature as agate, amethyst, chalcedony, cristobalite, flint, quartz, tridymite, and, in its most common form, sand (IARC 1997). Naturally occurring silica materials are classified by end use or industry. Sand and gravel are produced almost exclusively for road building and concrete construction, depending on particle size and shape, surface texture, and porosity (IARC 1987).
Definition
A hygroscopic substance such as activated alumina, calcium chloride, silica gel, or zinc chloride. Such substances adsorb water vapor from the air and are used to maintain a dry atmosphere in containers for food packaging, chemical reagents, etc.
Definition
Cristobalite: a mineral form of silicon(IV) oxide, SiO2.
General Description
Rounded silica sand is the naturally occurring sand usually mined from glacial deposits, sometimes called Ottawa sands. Silica sand is essentially made of quartz (SiO2 ) grains.
Pressure range: 28 < σc < 35 MPa (4 < σc < 5 ksi)
Advantages: Low cost, low density, wide availability, and excellent chemical resistance in acidic media except those containing free HF
Drawbacks: Low permeability, low crushing strength, and poor resistance to flow back
Safety Profile
Confirmed carcinogen with experimental carcinogenic and tumorigenic data. Poison by intratracheal route. An inhalation hazard. Human systemic effects by inhalation: cough, dyspnea, fibrosis. About twice as toxic as silica in causing sihcosis. See also other sdica entries
Potential Exposure
Cristobalite is used in the manufacture of water glass, refractories, abrasives, ceramics and enamels. Quartz is used as a mineral, natural or synthetic fiber. Tridymite is used as a filtering and insulating media and as a refractory material for furnace linings. Workers are potentially exposed to crystalline silica in such industries as granite quarrying and cutting, foundry operations; metal, coal, dentistry, painting, and nonmetallic mining; and manufacture of clay and glass products.
Carcinogenicity
Respirable crystalline silica, primarily quartz dusts occurring in industrial and occupational settings, is known to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in humans. Respirable crystalline silica was first listed in the Sixth Annual Report on Carcinogens in 1991 as reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals; the listing was revised to known to be a human carcinogen in the Ninth Report on Carcinogens in 2000.
Incompatibilities
Violent reactions with powerful oxidizers: fluorine, chlorine trifluoride; manganese trioxide; oxygen difluoride, hydrogen peroxide, etc.; acetylene; ammonia.
Waste Disposal
Sanitary landfill
SILICA Preparation Products And Raw materials
Raw materials
Preparation Products
SILICA Suppliers
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- 0531-88773586 13210588999
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- 053188773586
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- China
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- 010-50973130 17801761073
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- China
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- 0531-88779682 13655318696
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- China
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- 010-89508211 18501085097
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- 010-89508210
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- China
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- 010-82967028 13552068683
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- +86-10-82967029
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- 400-1166-196 13458535857
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- QQ：800101999
- cdhxsj@163.com
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View Lastest Price from SILICA manufacturers
- Product
- Silica 14464-46-1
- Price
- US $20.60/KG
- Min. Order
- 1KG
- Purity
- 96%
- Supply Ability
- 5000kg
- Release date
- 2024-08-21
- Product
- SILICA 14464-46-1
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 1kg,5kg,100kg
- Release date
- 2019-07-04