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Metakieselsure

Silicic acid Struktur
7699-41-4
CAS-Nr.
7699-41-4
Bezeichnung:
Metakieselsure
Englisch Name:
Silicic acid
Synonyma:
HYDRATED SILICA;PRECIPITATED SILICA;bio-sil;Silicic;SILICA ACID;Kieselsre;metasilicic;kieselsaure;Kieselsre,E551;metasilicicaci
CBNumber:
CB7431304
Summenformel:
H2O3Si
Molgewicht:
78.1
MOL-Datei:
7699-41-4.mol

Metakieselsure Eigenschaften

Schmelzpunkt:
1704℃
L?slichkeit
insoluble in H2O; soluble in HF
Aggregatzustand
powder
Farbe
White
PH
pKa1= 9.65, pKa2 = 13.09(25℃)
Dielectric constant
2.0(Ambient)
InChI
1S/H2O3Si/c1-4(2)3/h1-2H
InChIKey
IJKVHSBPTUYDLN-UHFFFAOYSA-N
SMILES
O[Si](O)=O
CAS Datenbank
7699-41-4(CAS DataBase Reference)
EPA chemische Informationen
Silicic acid (H2SiO3) (7699-41-4)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xi
R-S?tze: 36/37
S-S?tze: 22-26-36
OEB B
OEL TWA: 6.0 mg/m3
WGK Germany  3
RTECS-Nr. VV8853000
TSCA  TSCA listed
Speicherklasse 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
STOT SE 3
Bildanzeige (GHS) Exclamation Mark (GHS07)
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizit?t (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung
Sicherheit
P261 Einatmen von Staub vermeiden.
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P271 Nur im Freien oder in gut belüfteten R?umen verwenden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.

Metakieselsure Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R36/37:Reizt die Augen und die Atmungsorgane.

S-S?tze Betriebsanweisung:

S22:Staub nicht einatmen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

Beschreibung

Silicic acid is the general name that refers to the group of chemical compounds of the element hydrogen, silicon, and oxygen with the formula [SiOx(OH)4-2x]n. H4SiO4 is the most predominant form. Silicic acid is a hydrated form of silicon dioxide. It belongs to the family of Miscellaneous Silicates. These are inorganic compounds in which the largest metallic oxoanion is silicate, to which either no atom or a non metal atom is bonded. Silicic acid is contained in many foods, such as grain, fruit and vegetables (borage). It is commonly used in the manufacture of toothpastes and as a stationary phase for chromatography.It is utilized for the manufacture catalyst and catalyst carrier. It is involved in tungsten filament production as chemical reagent and flux. Further, it is used for oil and wax decoloring.

Chemische Eigenschaften

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

Verwenden

Silicic acid is used in protein chromatography. Silicic acid has been used in a study to demonstrate the anti-biofilm potential of a glycolipid surfactant produced by a tropical marine strain of Serratia marcescens. Silicic acid has also been used to study the antioxidant activity of fresh and processed Jalapeno and Serrano peppers.

Definition

The jellylike precipitate obtained when sodium silicate solution is acidified. The proportion of water varies with the conditions of preparation and decreases gradually during drying and ignition, until relatively pure silica remains. During drying the je

Sicherheitsprofil

An inhalation hazard. Poison by intravenous route. An eye irritant and nuisance dust. Questionable carcinogen. Mutation data reported. See also other silica entries and SILICATES

m?gliche Exposition

Amorphous fumed silica is used as a mineral, natural or synthetic fiber. A potential danger to those involved in the production and handling of fumed silica for paint pigments or catalysts. Diatomaceous earth is used in clarifying liquids, in manufacture of fire brick and heat insulators; used as a filtering agent; as a filler in construction materials; pesticides, paints, and varnishes. A potential danger to those involved in mining of diatomaceous earth or fabrication of products there from.

Inkompatibilit?ten

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.

Metakieselsure Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Metakieselsure Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 126)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hebei Yanxi Chemical Co., Ltd.
+8618531123677
faithe@yan-xi.com China 5853 58
Hebei Chuanghai Biotechnology Co., Ltd
+8615531151365
mina@chuanghaibio.com China 18126 58
Apeloa production Co.,Limited
+8619933239880
admin@apcl.com.cn China 861 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806
sales@capot.com China 29640 60
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21587 55
career henan chemical co
+86-0371-86658258 +8613203830695
factory@coreychem.com China 29792 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763
sales@tnjchem.com China 34563 58
Shaanxi Dideu Medichem Co. Ltd
+86-029-89586680 +86-18192503167
1026@dideu.com China 9996 58
Alfa Chemistry
+1-5166625404;
Info@alfa-chemistry.com United States 20405 58
HANGZHOU LEAP CHEM CO., LTD.
+86-571-87711850
market18@leapchem.com China 24597 58

7699-41-4(Metakieselsure)Verwandte Suche:


  • kieselsaure
  • metasilicic
  • Silicic acid suitable for column chromatography, 60-200 mesh
  • silicicacid(h2sio3)
  • SILICIC ACID MESH SIZE: 100-200
  • SILICIC ACID MESH SIZE: 100+
  • Silicic acid Suitable for column chroma-tography,100-200 mesh(75-150 μm)
  • SILICIC ACID MESH SIZE: 200-400
  • Silicic acid, 100 mesh for chromatography
  • Silicicacid,amorph
  • Silicicacidmeshforchromatography
  • Silicicacidhydrate,ReagentGrade
  • AMORPHOUS-PRECIPITATEDSILICA
  • polymetasilicic coagulant
  • Kieselsre,E551
  • Kieselsre
  • dihydroxy(keto)silane
  • metasilicicaci
  • bio-sil
  • HYDRATED SILICA
  • PRECIPITATED SILICA
  • SILICA ACID
  • Silicic
  • 7699-41-4
  • 1343-98-3
  • H2SiO2
  • H2O3Si
  • SiO2xH2O
  • H6O7Si2
  • H8O10Si3
  • Synthetic Reagents
  • Inorganic Acids
  • Inorganics
  • Acids
  • Electronic Chemicals
  • Micro/Nanoelectronics
  • Adsorption/Partition
  • Protein Chromatography
  • Silica
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