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Siliciumdioxid Produkt Beschreibung

Silicon dioxide Struktur
7631-86-9
CAS-Nr.
7631-86-9
Bezeichnung:
Siliciumdioxid
Englisch Name:
Silicon dioxide
Synonyma:
Silica;NEOSYL;NeoBLUE;Aerosil;Silitech;RONASPHERE;Geduran Si;Zeolite θ-1;Dioxosilane;Two zirconia
CBNumber:
CB8138262
Summenformel:
O2Si
Molgewicht:
60.08
MOL-Datei:
7631-86-9.mol

Siliciumdioxid Eigenschaften

Schmelzpunkt:
>1600 °C(lit.)
Siedepunkt:
>100 °C(lit.)
Dichte
2.2-2.6 g/mL at 25 °C
Brechungsindex
1.46
Flammpunkt:
2230°C
storage temp. 
2-8°C
Löslichkeit
Practically insoluble in water and in mineral acids except hydrofluoric acid. It dissolves in hot solutions of alkali hydroxides.
Aggregatzustand
suspension
Farbe
White to yellow
Wichte
2.2
Wichte
0.97
Wichte
1.29
PH
5-8 (100g/l, H2O, 20℃)(slurry)
Wasserlöslichkeit
insoluble
Sensitive 
Hygroscopic
Hydrolytic Sensitivity
6: forms irreversible hydrate
Hydrolytic Sensitivity
5: forms reversible hydrate
Hydrolytic Sensitivity
4: no reaction with water under neutral conditions
Merck 
14,8493
Stabilität:
Stable.
CAS Datenbank
7631-86-9(CAS DataBase Reference)
NIST chemische Informationen
Silicon(iv) oxide(7631-86-9)
IARC
3 (Vol. Sup 7, 68) 1997
EPA chemische Informationen
Silica (7631-86-9)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xn,Xi
R-Sätze: 36/37/38-36/37-22-43-52/53-36/38
S-Sätze: 26-37/39-36-36/37/39-36/37-61
HS Code  2811221000
Toxizität LC inhalation in rat: > 200gm/m3/1H
Bildanzeige (GHS)
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H317 Kann allergische Hautreaktionen verursachen. Sensibilisierung der Haut Kategorie 1A Warnung P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
H320 Causes eye irritation Serious eye damage/eye irritation Category 2B Warnung P264, P305+P351+P338,P337+P313
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizität (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung
H350 Kann Krebs verursachen. Karzinogenität Kategorie 1A Achtung
H360 Kann die Fruchtbarkeit beeinträchtigen oder das Kind im Mutterleib schädigen. Fertility (Fruchtbarkeit) Kategorie 1 Achtung
H373 Kann die Organe schädigen bei längerer oder wiederholter Exposition. Spezifische Zielorgan-Toxizität (wiederholte Exposition) Kategorie 2 Warnung P260, P314, P501
H401 Toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 2 P273, P501
H402 Harmful to aquatic life Hazardous to the aquatic environment, acute hazard Category 3
H411 Giftig für Wasserorganismen, mit langfristiger Wirkung. Langfristig (chronisch) gewässergefährdend Kategorie 2
Sicherheit
P201 Vor Gebrauch besondere Anweisungen einholen.
P260 Dampf/Aerosol/Nebel nicht einatmen.
P261 Einatmen von Staub vermeiden.
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P314 Bei Unwohlsein ärztlichen Rat einholen / ärztliche Hilfe hinzuziehen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.
P308+P313 BEI Exposition oder falls betroffen: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.
P333+P313 Bei Hautreizung oder -ausschlag: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.
P405 Unter Verschluss aufbewahren.

Siliciumdioxid Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R36/37:Reizt die Augen und die Atmungsorgane.
R22:Gesundheitsschädlich beim Verschlucken.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.

Chemische Eigenschaften

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

Chemische Eigenschaften

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

Chemische Eigenschaften

white crystals or powder

Verwenden

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).

Verwenden

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

Verwenden

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.

Verwenden

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.

Verwenden

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.

Verwenden

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.

Definition

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

Allgemeine Beschreibung

contains sodium stabilizing counterion

Hazard

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

Landwirtschaftliche Anwendung

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.

Sicherheitsprofil

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

mögliche Exposition

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

Versand/Shipping

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

läuterung methode

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].

Inkompatibilitäten

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.

Waste disposal

Sanitary landfill.

Siliciumdioxid Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Siliciumdioxid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 280)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Neostar United (Changzhou) Industrial Co., Ltd.
+0086-519-85557386
+0086-519-85557389 marketing1@neostarunited.com CHINA 4135 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com China 22607 55
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679
86-0551-65418697 info@tnjchem.com China 3000 55
career henan chemical co
+86-0371-55982848
sales@coreychem.com China 29953 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Hebei Guanlang Biotechnology Co., Ltd.
+8619930503282
alice@crovellbio.com China 5941 58
Cangzhou Wanyou New Material Technology Co.,Ltd
18631714998
sales@czwytech.com CHINA 914 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114
sales@amoychem.com CHINA 6369 58
Shandong chuangyingchemical Co., Ltd.
18853181302
sale@chuangyingchem.com CHINA 5917 58
BOC Sciences
1-631-485-4226
1-631-614-7828 inquiry@bocsci.com United States 19752 58

7631-86-9(Siliciumdioxid)Verwandte Suche:


  • SILICA GEL 60 PF254 FOR PREPARATIVE LAYE
  • LICHROSORB SI 100 (10 MYM) 10 G
  • TLC-SILICA GEL 60 GF254 MEAN PARTICLE SI
  • LICHROSORB SI 100 (10 MYM) 100 G
  • SEA SAND EXTRA PURE 5 KG
  • SILICA GEL 60 GF254 FOR THIN-LAYER CHROM
  • SILICA GEL 60 PF254 + 366 FOR PREPARATIV
  • SEA SAND EXTRA PURE 25 KG
  • SILICA GEL 60 HF254+366 FOR THIN-LAYER C
  • SILICA GEL GRANULES, DESICCANT CA. 2 - 5
  • TLC SILICA GEL 60 H MEAN PARTICLE SIZE 1
  • SILICA GEL GRANULES 1 KG
  • Silica gel 60, 0.040-0.063MM (230-400 Mesh), 99.5% (Metals basis)
  • Silica gel 60, 0.036-0.071MM (215-400 Mesh)
  • Cab-O-Sil M5 NF/EP
  • Silica gel, for chroMatography, 0.040 - 0.063 MM (230 - 400 Mesh), 60 A
  • Silica gel, for chroMatography, 0.060 - 0.2 MM (70 - 230 Mesh), 60 A
  • LUDOX? HS-40 colloidal silica
  • LUDOX? AM colloidal silica
  • LUDOX? TMA colloidal silica
  • Silica Gel [for Flash Chromatography]
  • LUDOX(R) AM colloidal silica 30 wt. % suspension in H2O
  • Silica gel for thin-layer chromatography, GF 254, CP grade,Silica gel 60 GF254 for thin-layer chromatography 7631-86-9 25kg Molar mass 60.09 g/mol
  • LUDOX(R) CL-X colloidal silica 45 wt. % suspension in H2O
  • Silica nanoparticles, mesoporous, 200 nm particle size, pore size 4 nm
  • Silica nanopowder, spec. surface area 175-225 m2/g (BET), 99.8% trace metals basis
  • Silica, mesostructured HMS (wormhole)
  • Silica, mesostructured MCM-41 type (hexagonal)
  • Silica, mesostructured MSU-F (cellular foam)
  • Silica, mesostructured SBA-15, 99% trace metals basis
  • 1,2-DIAMINOCYCLOHEXANE TETRAACET.AC 1H2O
  • FOLIN-DENIS'S REAGENT FOR URIC ACID
  • CRYOINSTANT VIALS MIXED 50X2ML
  • SAND FONTAINEBLEAU
  • Silitech
  • Silica, Active
  • Silicon(IV) oxide, 30% in H
  • Silica Gel Dessicant (Grade 03)
  • Silica Gel Desiccant, 60-200 Mesh
  • Silica gel desiccant, For analysis ACS
  • Silica Gel Desiccant, 12-24 Mesh, Grade 408
  • Silica gel, 2-5mm
  • Silica Gel Desiccant, 100-200 Mesh
  • Silica gel, For chromatography, 0.035-0.070mm, 90&angst:
  • Silica gel, 0.060-0.200mm, 60 A
  • Silicon (IV) oxide, Colloidal dispersion
  • Silicon(IV) oxide, 40% in H
  • Silicon (IV) oxide, Amorphous fumed
  • Silicon(IV) oxide, 15% in H
  • Silicon(IV) oxide, 0.5 micron
  • Silicon (IV) oxide, Amorphous fumed, surface treated
  • Silicon(IV) oxide, 1.0 micron
  • Silicon(IV) oxide, 50% in H
  • Silicon(IV) oxide, 1.5 micron
  • LUDOX# CL-X COLLOIDAL SILICA, 45 WT. % SUSPENSION IN WATER
  • LUDOX#-50 COLLOIDAL SILICA, 50 WT. % SUSPENSION IN WATER
  • FLASH C18 SILICA 100GM BULK
  • LUDOX#-40 COLLOIDAL SILICA, 40 WT. % SUSPENSION IN WATER
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