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ChemicalBook > Produktkatalog >Reagenzien >Organische Reagenzien >Siloxane >1,1,3,3-Tetramethyldisiloxan

1,1,3,3-Tetramethyldisiloxan Produkt Beschreibung

CAS-Nr.3277-26-7
Bezeichnung:1,1,3,3-Tetramethyldisiloxan
Englisch Name:1,1,3,3-Tetramethyldisiloxane
Synonyma:
CT2030;(Me2HSi)2O;SILOXANE HSI2;dimethylsilylether;Dimethylsilyl ether;(CH3)2HSiOSiH(CH3)2;Tetramethyldisiloxan;1,1,3,3-Tetramethyld;TETRAMETHYLDISILOXANE;bis(dimethylsilyl)oxide
CBNumber:CB5355451
Summenformel:C4H14OSi2
Molgewicht:134.32
MOL-Datei:3277-26-7.mol
1,1,3,3-Tetramethyldisiloxan physikalisch-chemischer Eigenschaften
Schmelzpunkt:: <-78°C
Siedepunkt:: 70-71 °C(lit.)
Dichte: 0.76 g/mL at 25 °C(lit.)
Dampfdruck: 250 hPa (20 °C)
Brechungsindex: n20/D 1.370(lit.)
Flammpunkt:: 14 °F
storage temp. : 2-8°C
Aggregatzustand: liquid
Farbe: colorless
Wichte: 0.757
Explosionsgrenze: 0.8-62.9%(V)
Wasserlöslichkeit: DECOMPOSES
Sensitive : Moisture Sensitive
BRN : 1733364
InChIKey: NVYQDQZEMGUESH-UHFFFAOYSA-N
CAS Datenbank: 3277-26-7(CAS DataBase Reference)
NIST chemische Informationen: ((CH3)2SiH)2O(3277-26-7)
EPA chemische Informationen: Disiloxane, 1,1,3,3-tetramethyl-(3277-26-7)
Sicherheit
Kennzeichnung gefährlicher: F
R-Sätze:: 11-36/37/38-16
S-Sätze:: 16-26-36-9-33-29
RIDADR : UN 2924 3/PG 2
WGK Germany : 3
RTECS-Nr.: JN1000000
F : 10-21
Selbstentzündungstemperatur: 240 °C
TSCA : Yes
HazardClass : 3
PackingGroup : II
HS Code : 29310095

1,1,3,3-Tetramethyldisiloxan Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R11:Leichtentzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R16:Explosionsgefährlich in Mischung mit brandfördernden Stoffen.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S9:Behälter an einem gut gelüfteten Ort aufbewahren.
S33:Maßnahmen gegen elektrostatische Aufladungen treffen.
S29:Nicht in die Kanalisation gelangen lassen.
Beschreibung
1,1,3,3-Tetramethyldisiloxane is soluble in many organic solvents, such as aromatic hydrocarbon and petroleum hydrocarbons, and so on. This product is a kind of widely used organic silicon intermediates, and usually be used as organic silicon blocking agent. Due to containing reactive Si-H groups in the molecular structure, it can be used in the synthesis of copolymer macromolecule by hydrosilylation. The synthesis of copolymer macromolecule can be made into a series of reactive silicone oil.
Chemische Eigenschaften
Colorless or yellowish transparent liquid
Verwenden
1. Synthesis of polysiloxane containing faculties end groups.
2. Can be used for the preparation of high performance organic silicone surfactants.
3. Applicable to the production of many products, such as addition silicon rubber, silica gel, Hydrogenpolysiloxane and plastic, resin modifier, dendrite polymer special additives, etc.
Verwenden
1, 1, 3, 3-Tetramethyldisiloxane is a kind of siloxane derivative, and can be used as a monomer for the preparation of silicone polymers or silicone resins. It is used as an intermediate for preparing other organosilicon compounds. It is also used in non-aqueous polymer preparation as well as a laboratory reagent. In organic synthesis, it finds an application as an effective reducing agent in platinum-catalyzed reduction of carboxamides to amines as well as in the Au/TiO2-catalyzed hydrosilylation of carbonyl compounds (e.g., reduction of aldehydes or ketones) relative to monohydrosilanes. It can also enable a direct bromination of carboxylic acids in the presence of indium bromide (InBr3) as catalyst.
läuterung methode
1,Possible impurity is 1,1,5,5-tetramethyl-3-trimethylsiloxytrisiloxane b 154-155o/733mm. Fractionate it, collect fractions boiling below 80o and re-fractionate it. Its purity can be analysed by alkaline hydrolysis and measuring the volume of H2 liberated followed by gravimetric estimation of silica in the hydrolysate. It is unchanged when stored in glass containers in the absence of moisture for 2-3 weeks. Small amounts of H2 are liberated on long storage. Care should be taken when opening a container due to pressure developed. [Speier et al. J Am Chem Soc 79 974 1958, Emeléus & Smythe J Chem Soc 609 1958, IR: Kriegsmann Z Anorg Chem 299 78 1959, Beilstein 4 IV 3991.]
Einzelnachweise
https://www.alfa.com/en/catalog/B23697/
http://www.organic-chemistry.org/chemicals/reductions/tetramethyldisiloxane-TMDSO.shtm
https://www.infona.pl/resource/bwmeta1.element.elsevier-722236cc-df38-37aa-bbed-029ec07d525f
1,1,3,3-Tetramethyldisiloxan Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
1,1,3,3-Tetramethyldisiloxan Anbieter Lieferant Produzent Hersteller Vertrieb Händler.      Global( 220)Lieferanten     
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Jiangxi New jiayi New Materials Co., Ltd.
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Kingfirst chemical (nanjing) co.,ltd
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Hebei Guanlang Biotechnology Co., Ltd.
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Hangzhou Bayee Chemical Co., Ltd.
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3277-26-7(1,1,3,3-Tetramethyldisiloxan)Verwandte Suche:
3-(Triethoxysilyl)-propylamin N-[3-(Dimethoxymethylsilyl)propyl]ethylendiamin 3,3'-(1,1,3,3-Tetramethyldisiloxan-1,3-diyl)bispropylamin Tetramethyldisiloxan 1,1,3,3-Tetramethyl-1,3-divinyldisiloxan 1,1,3,3-Tetramethyl-1,3-diphenyldisiloxan 3,3'-(1,1,3,3-Tetramethyldisiloxan-1,3-diyl)dipropanol (1,1,3,3-Tetramethyldisiloxan-1,3-diyl)dipropan-1,3-diyldimethacrylat 1,3-Bis(3-(2,3-epoxypropoxy)propyl)-1,1,3,3-tetramethyldisiloxan Platin, 1,3-Diethenyl-1,1,3,3-tetramethyldisiloxan Komplexe 1,3-Bis(dichlormethyl)-1,1,3,3-tetramethyldisiloxan 1,3-Bis(3-chlorpropyl)-1,1,3,3-tetramethyldisiloxan 1,3-Diethoxy-1,1,3,3-tetramethyldisiloxan
TETRAMETHYLDISILOXANE (CH3)2HSiOSiH(CH3)2 1,1,3,3-tetramethyl-disiloxan 1,3-Dihydrotetramethyldisiloxane Bis(dimethylsilyl) oxide bis(dimethylsilyl)oxide CT2030 SILOXANE HSI2 1,1,3,3-TETRAMETHYLDISILOXANE BIS(DIMETHYLSILYL) ETHER 1,1,3,3-TETRAMETHYLDISILOXANE,WACKER QUALITY Tetramethyldisiloxan 1,1,3,3,-TETRAMETHYLDISLOXANE Dimethylsilyl ether dimethylsilylether Disiloxane, 1,1,3,3-tetramethyl- sym-Tetramethyldisiloxane 1,1,3,3-TETRAMETHYLDISILOXANE FOR SYNTHE Tetramethyldiydrodisiloxane 1,1,3,3-Tetramethyldisiloxane, 99+% TMDSO (99.9999%-Si) PURATREM 1,1,3,3-Tetramethyldisiloxane, 98.5% - Industrial/Fine Chemicals Reduction Si (Classes of Silicon Compounds) Si-H Compounds Siloxanes Si-O Compounds Synthetic Organic Chemistry 1,1,3,3-TETRAMETHYLDISILOXANE 97+% 1,1,3,3-Tetramethyl-1,3-dihydrodisiloxane 1,1,3,3-Tetramethyl-1,3-disiloxane 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine 1,1,3,3-Tetramethyl dihydro disiloxane 1,1,3,3-Tetramethyld (Me2HSi)2O 1,1,3,3-TetraMethyldisiloxane, 97% 100ML 3277-26-7 C4H14OSi2 CH32SiH2O Si-H Compounds Si-O Compounds Si (Classes of Silicon Compounds) Reduction Siloxanes Organometallic Reagents Organosilicon Silicone serier Tetramethyldisiloxane Hydrogensilanes Hydrogensiloxanes Reducing Agents Organometallic Reagents Organosilicon
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