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Silan, Dichlordimethyl-, Reaktionsprodukte mit Siliciumdioxid

Silane, dichlorodimethyl-, reaction products with silica Struktur
68611-44-9
CAS-Nr.
68611-44-9
Bezeichnung:
Silan, Dichlordimethyl-, Reaktionsprodukte mit Siliciumdioxid
Englisch Name:
Silane, dichlorodimethyl-, reaction products with silica
Synonyma:
DICHLOROMETHYLSILANE,REACTIONPRODUCTWITHSILICA;DIMETHYLDICHLOROSILANE, REACTION PRODUCTS WITH SILICA;Silane, dichlorodimethyl-, reaction products with silica
CBNumber:
CB6922694
Summenformel:
C2H6Cl2O2Si2
Molgewicht:
189.14
MOL-Datei:
68611-44-9.mol

Silan, Dichlordimethyl-, Reaktionsprodukte mit Siliciumdioxid Eigenschaften

Dichte
0.18 g/cm 3 (loose weight)(lit.)
L?slichkeit
Solubility is 1 in 6.7 parts of water (pH 7, 25°C). Practically insoluble in organic solvents(5) and acids, except hydrofluoric acid; soluble in hot solutions of alkali hydroxide.
EPA chemische Informationen
Silane, dichlorodimethyl-, reaction products with silica (68611-44-9)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xn,T
R-S?tze: 48/20-36/37-49
S-S?tze: 53-22-26-45
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H330 Lebensgefahr bei Einatmen. Akute Toxizit?t inhalativ Kategorie 1 Achtung GHS hazard pictogramssrc="/GHS06.jpg" width="20" height="20" /> P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
Sicherheit
P260 Dampf/Aerosol/Nebel nicht einatmen.
P271 Nur im Freien oder in gut belüfteten R?umen verwenden.
P284 Atemschutz tragen.
P304+P340 BEI EINATMEN: Die Person an die frische Luft bringen und für ungehinderte Atmung sorgen.
P310 Sofort GIFTINFORMATIONSZENTRUM/Arzt/ anrufen.
P320 Besondere Behandlung dringend erforderlich
P403+P233 An einem gut belüfteten Ort aufbewahren. Beh?lter dicht verschlossen halten.
P405 Unter Verschluss aufbewahren.
P501 Inhalt/Beh?lter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen.

Silan, Dichlordimethyl-, Reaktionsprodukte mit Siliciumdioxid Chemische Eigenschaften,Einsatz,Produktion Methoden

Chemische Eigenschaften

Hydrophobic colloidal silica occurs as a light, fine, white or almost white amorphous powder, not wettable by water.

Vorbereitung Methode

Hydrophobic colloidal silica is prepared by the flame hydrolysis of chlorosilanes, such as silicon tetrachloride, at 1800°C using a hydrogen–oxygen flame. It is rapidly cooled to create an amorphous productand immediately treated with dichlorodimethyl silane in a fluid bed reactor. The resulting surface is covered with dimethylsilyl groups. Aerosil R972 is manufactured by modifying the surface of Aerosil 130 and thus has the same primary particle size and surface area, but the density of silanol groups is reduced from approximately 2.0 SiOH/nm2 to 0.75 SiOH/nm2.

Pharmazeutische Anwendungen

large specific surface area, which provide desirable flow characteristics in dry powders used in tableting and capsule filling. The hydrophobic grades absorb less moistureand may offer an advantage in moisture-sensitive formulations.
Hydrophobic colloidal silica is also used to thixotropically control viscosity, to thicken and stabilize emulsions, or as a suspending agent in gels and semisolid preparations. Hydrophobic colloidal silica has a less pronounced effect on solution viscosity but can thicken and stabilize the oil phase of a water–oil emulsion. With other ingredients of similar refractive index, transparent gels may be formed. Generally, the uses and ranges of hydrophobic colloidal silica are similar to the concentrations used of the standard hydrophilic colloidal silicon dioxide.

Sicherheit(Safety)

The safety profile of hydrophobic colloidal silica is the same as for the hydrophilic silica types, as the modified silica surface does not significantly alter the toxicological properties.
LD50 (rat, IV): 0.015 g/kg

Lager

Hydrophobic colloidal silica should be stored in a well-closed container. It will not absorb moisture but may still absorb volatile substances owing to its high surface area.

Inkompatibilit?ten

Use of the hydrophobic colloidal silica Aerosil R972 reduces the strength of starch-based tablets.

Regulatory Status

Approved for use in pharmaceuticals in Europe. Approved by FDA and Europe for food contact articles. Included in nonparenteral medicines (oral tablets; rectal suppositories) licensed in the UK.

Silan, Dichlordimethyl-, Reaktionsprodukte mit Siliciumdioxid Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Silan, Dichlordimethyl-, Reaktionsprodukte mit Siliciumdioxid Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 57)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hebei Weibang Biotechnology Co., Ltd
+8615531157085
abby@weibangbio.com China 8806 58
Hebei Mujin Biotechnology Co.,Ltd
+86 13288715578 +8613288715578
sales@hbmojin.com China 12832 58
Nanjing Deda New Material Technology Co., Ltd
+8613223293093
bella@njdeda.com China 80 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-13131129325
sales1@chuanghaibio.com China 5889 58
Hebei Zhuanglai Chemical Trading Co.,Ltd
+8613343047651
admin@zlchemi.com China 3102 58
Hebei Shengyang Water Conservancy Engineering Co., Ltd.
+8615373025980
clara@hbshengyang.com China 895 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21634 55
Hubei xin bonus chemical co. LTD
86-13657291602
linda@hubeijusheng.com CHINA 22963 58
Shandong chuangyingchemical Co., Ltd.
18853181302
sale@chuangyingchem.com CHINA 5906 58
Shanghai Longyu Biotechnology Co., Ltd.
+8619521488211
info@longyupharma.com China 2557 58

68611-44-9(Silan, Dichlordimethyl-, Reaktionsprodukte mit Siliciumdioxid)Verwandte Suche:


  • Silane, dichlorodimethyl-, reaction products with silica
  • DICHLOROMETHYLSILANE,REACTIONPRODUCTWITHSILICA
  • DIMETHYLDICHLOROSILANE, REACTION PRODUCTS WITH SILICA
  • 68611-44-9
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