Kieselgur, Natriumcarbonatschmelze-calciniert

Bezeichnung:Kieselgur, Natriumcarbonatschmelze-calciniert

CAS-Nr68855-54-9

Englisch Name:DIATOMACEOUS EARTH

CBNumberCB4199395

SummenformelO2Si

Molgewicht60.084

MOL-DateiMol file

Synonyma

Kieselgur, Natriumcarbonatschmelze-calciniert

Kieselgur, Natriumcarbonatschmelze-calciniert physikalisch-chemischer Eigenschaften

Schmelzpunkt	>450℃
Dichte	0.47 g/cm³ (loose weight)(lit.)
storage temp.	Store at RT.
Löslichkeit	<0.001g/l
Aggregatzustand	rod (¹/₈")
PH	>8.5 (25℃, 10% in aq. suspension)
Wasserlöslichkeit	Insoluble in water.
EPA chemische Informationen	Kieselguhr, soda ash flux-calcined (68855-54-9)

Sicherheit

Kennzeichnung gefährlicher	T,Xn
R-Sätze:	48/20-49-36/37-36/38-45-36/37/38
S-Sätze:	22-36-26-53-45-36/37/39-39
WGK Germany	2
RTECS-Nr.	VV7311000
TSCA	Yes
HS Code	3802 90 00

Gefahreninformationscode (GHS)

DIATOMACEOUS EARTH Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R48/20:Gesundheitsschädlich: Gefahr ernster Gesundheitsschäden bei längerer Exposition durch Einatmen.
R49:Kann Krebs erzeugen beim Einatmen.
R36/37:Reizt die Augen und die Atmungsorgane.
R36/38:Reizt die Augen und die Haut.
R45:Kann Krebs erzeugen.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder
Chemische Eigenschaften
white to off-white powder
Verwenden
Production of filters, polishes, absorbents, insulators.
Verwenden
Diatomaceous earth may be used as an adsorbent for column chromatography.
Verwenden
Celite (R) 545 AW was used as stationary phase in purification of fagopyritols using preparative chromatography. Celite (R) 545 AW was used as packing material for fractionating procedure and the fractions were analysed using GC-ECD, GC/ECNI-MS 2 and IC-MS/MS.
Definition
ChEBI: Silicon dioxide is a silicon oxide made up of linear triatomic molecules in which a silicon atom is covalently bonded to two oxygens.
Allgemeine Beschreibung
Chromosorb^? W is a diatomite which provides solid support for the packed GC columns. It is suitable for use with polar compounds, due to its low surface area and high inertness.
Health Hazard
Amorphous silica, natural diatomaceous earth, is usually considered to be of low toxicity; however, pure amorphous silica is rarely found.
Flammability and Explosibility
Non flammable
mögliche 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.
Carcinogenicity
Amorphous silica has been tested for carcinogenicity in a variety of animal studies by a number of routes. Most of the tests were negative or were inadequate primarily because of poorly defined physiochemical characteristics of the silica. The IARC concluded that evidence is inadequate to describe amorphous silica as carcinogenic in either experimental animals or humans. Crystalline silica, however, has been designated by IARC as a probable human carcinogen (category 2A), based on “sufficient evidence” in experimental animals and “limited evidence” in humans.Therefore, although evidence for the carcinogenicity of crystalline silica in humans is unconvincing, certainly from exposures insufficient to cause silicosis, appropriate hazard warnings are obligatory in the United States. These apply to all materials containing 0.1% or more of crystalline silica (quartz, cristobalite, and/or tridymite).
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.

DIATOMACEOUS EARTH Upstream-Materialien And Downstream Produkte

Kieselgur, Natriumcarbonatschmelze-calciniert Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

68855-54-9, DIATOMACEOUS EARTH Verwandte Suche:

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