Poly(dimethylsiloxane)

Bezeichnung:Poly(dimethylsiloxane)

CAS-Nr9016-00-6

Englisch Name:Poly(dimethylsiloxane)

CBNumberCB3696473

Summenformel(C2H6OSi)n

Molgewicht94.18664

MOL-Datei9016-00-6.mol

Synonyma

Dimethylpolysiloxan

Poly(dimethylsiloxane) physikalisch-chemischer Eigenschaften

Schmelzpunkt	-35°C
Siedepunkt	155-220°C
Dichte	0.971
Dampfdruck	5 mm Hg ( 20 °C)
Brechungsindex	1.4035
Flammpunkt	63°C
storage temp.	Refrigerator
Löslichkeit	Chloroform (Slightly), Methanol (Slightly)
Aggregatzustand	Viscous Liquid
Wichte	0.918
Farbe	Colorless
Wasserlöslichkeit	INSOLUBLE
Stabilität	Stable. Flammable or combustible. Flammability depends upon extent of polymerization. Incompatible with strong oxidizing agents.
EPA chemische Informationen	Poly[oxy(dimethylsilylene)] (9016-00-6)

Sicherheit

R-Sätze:	36/37/38
S-Sätze:	24/25
RIDADR	1993
WGK Germany	2
RTECS-Nr.	TQ2690000
TSCA	Yes
HazardClass	3
HS Code	39100000

Gefahreninformationscode (GHS)

Poly(dimethylsiloxane) Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD
öLIGE FARBLOSE FLüSSIGKEIT.
ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation.
INHALATIONSGEFAHREN
Nur ungenügende Angaben vorhanden über die Geschwindigkeit, mit der eine gesundheitsschädliche Konzentration in der Luft beim Verdampfen bei 20°C erreicht wird.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz reizt die Augen.
LECKAGE
Ausgelaufene Flüssigkeit möglichst in abdichtbaren Behältern sammeln. Reste mit Sand oder inertem Absorptionsmittel aufnehmen und an einen sicheren Ort bringen.
R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S24/25:Berührung mit den Augen und der Haut vermeiden.
Chemische Eigenschaften
colourless liquid with a viscosity, The polydimethylsiloxane materials are excellent examples of silicones because of their chemical properties and widespread industrial use. They can be manufactured as gels, resins, fluids, or elastomers, depending on the cross-linking characteristics. Toxicity testing using polydimethylsiloxane compounds on animals has found little, if any, harmful effects associated with chronic exposure. These tests include oral dosing and teratogenicity testing (Cutler et al., 1974; Kennedy et al., 1976). Human health effects associated with silicone implants have been reported. Polydimethylsiloxane is the most prevalent silicone used medically and has been incorporated into many prostheses, including breast implants.
Verwenden
Poly(dimethylsiloxane) is an antifoaming agent used in fats and oils. It prevents foaming and spattering when oils are heated and prevents foam formation during the manufacture of wine, refined sugar, gelatin, and chewing gum. It is also termed methyl polysilicone and methyl silicone.
Verwenden
Silicones are polymeric materials having silicon and oxygen on their composition. They are largely inert compounds usually heat-resistant, nonstick, and rubberlike. Polydimethylsiloxane (PDMS, molecular formula (C2H6OSi)n, density 965 kg/m3, boiling point: < 200℃, shear modulus between 100 kPa and 3 MPa, loss tangent less than 0.001) is a viscoelastic polymer (elastomer). PDMS is widely used in microfluidic technology thanks to some of its unique properties: it is low cost, nontoxic, chemically resistant, and stable against humidity and temperature variations. PDMS also presents low interfacial energy, which allows it to avoid chemical interactions with other polymers and solutions in the microfluidic channels. After polymerization and cross-linking, solid PDMS presents hydrophobic surface. A treatment using plasma oxidation is frequently used to alter the surface chemistry by adding silanol (SiOH) groups to the surface terminations and make the surface hydrophilic (wettable). PDMS is usually used as sealant, structural microchannel material or elastomer stamping matrix in soft lithography techniques like microcontact printing and micromolding.
Verwenden
Antiflatulent.
Trademarks
Gas-X (Novartis); Mylanta Gas Relief (Johnson & Johnson-Merck Consumer); Mylicon Infant’s Drops (Johnson & Johnson-Merck Consumer); Sentry Simethicone (Witco); Sentry Simethicone Emulsion (Witco).
Allgemeine Beschreibung
Colorless odorless liquid, Floats on water.
Air & Water Reaktionen
Insoluble in water.
Reaktivität anzeigen
Poly(dimethylsiloxane) is a weak reducing agent.
Health Hazard
Contact of liquid with eyes may cause temporary discomfort. Does not irritate skin. Harmless when ingested.
Pharmazeutische Anwendungen
Simethicone is a mixture of poly(dimethyl siloxane) and silica gel, known for their antifoaming properties. It is an orally administered suspension containing polysiloxanes and silicon dioxide. It is an antifoaming agent and is used to reduce bloating by decreasing the surface tension in bubbles. Excessive formation of gas bubbles in the stomach and intestines can be painful and can also be of hindrance for any ultrasound examination. Simethicone can be found in antacids and in suspensions given to babies against colic.
Biochem/physiol Actions
Dimethylpolysiloxane is a silicon-based organic polymer, inert and non-toxic. It is applicable in the pharmaceutical, food, and cosmetic industry. Dimethylpolysiloxane is excreted unchanged unaltered in the faeces and is non-mutagenic.

Poly(dimethylsiloxane) Upstream-Materialien And Downstream Produkte

Poly(dimethylsiloxane) Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

9016-00-6, Poly(dimethylsiloxane) Verwandte Suche:

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