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ChemicalBook >> CAS DataBase List >>1,1,3,3-Tetramethyldisiloxane

1,1,3,3-Tetramethyldisiloxane

CAS No.
3277-26-7
Chemical Name:
1,1,3,3-Tetramethyldisiloxane
Synonyms
TMDO;TMDSO;CT2030;(Me2HSi)2O;NSC 155369;SILOXANE HSI2;dimethylsilylether;Dimethylsilyl ethe;Dimethylsilyl ether;(CH3)2HSiOSiH(CH3)2
CBNumber:
CB5355451
Molecular Formula:
C4H14OSi2
Formula Weight:
134.32
MOL File:
3277-26-7.mol
MSDS File:
SDS

1,1,3,3-Tetramethyldisiloxane Properties

Melting point
<-78°C
Boiling point
70-71 °C (lit.)
Density
0.76 g/mL at 25 °C (lit.)
vapor pressure
250 hPa (20 °C)
refractive index
n20/D 1.370(lit.)
Flash point
14 °F
storage temp.
Store at <= 20°C.
form
liquid
color
colorless
Specific Gravity
0.757
explosive limit
0.8-62.9%(V)
Water Solubility
DECOMPOSES
Sensitive
Moisture Sensitive
Hydrolytic Sensitivity
3: reacts with aqueous base
BRN
1733364
InChIKey
NVYQDQZEMGUESH-UHFFFAOYSA-N
CAS DataBase Reference
3277-26-7(CAS DataBase Reference)
EWG's Food Scores
NIST Chemistry Reference
EPA Substance Registry System

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS02
Signal word  Danger
Hazard statements  H225
Precautionary statements  P210-P370+P378-P403+P235-P243-P403+P233
Hazard Codes  F
Risk Statements  11-36/37/38-16
Safety Statements  16-26-36-9-33-29
RIDADR  UN 2924 3/PG 2
WGK Germany  3
RTECS  JN1000000
10-21
Autoignition Temperature 240 °C
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29310095

1,1,3,3-Tetramethyldisiloxane price More Price(32)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 235733 1,1,3,3-Tetramethyldisiloxane 97% 3277-26-7 25g $28.2 2021-12-16 Buy
Sigma-Aldrich 8.18414 1,1,3,3-Tetramethyldisiloxane for synthesis 3277-26-7 25 mL $76.68 2021-12-16 Buy
Sigma-Aldrich 235733 1,1,3,3-Tetramethyldisiloxane 97% 3277-26-7 100g $85.5 2021-12-16 Buy
TCI Chemical T1437 1,1,3,3-Tetramethyldisiloxane >97.0%(GC) 3277-26-7 25mL $22 2022-04-27 Buy
TCI Chemical T1437 1,1,3,3-Tetramethyldisiloxane >97.0%(GC) 3277-26-7 250mL $125 2022-04-27 Buy
Product number Packaging Price Buy
235733 25g $28.2 Buy
8.18414 25 mL $76.68 Buy
235733 100g $85.5 Buy
T1437 25mL $22 Buy
T1437 250mL $125 Buy

1,1,3,3-Tetramethyldisiloxane Chemical Properties,Uses,Production

Description

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.

Chemical Properties

Colorless or yellowish transparent liquid

Uses

1,1,3,3-Tetramethyldisiloxane is used as a monomer in the production of silicone polymers or silicone resins. It is used as a precursor to prepare other organosilicon compounds. It is also utilized in non-aqueous polymer preparation as well as a laboratory reagent.

Uses

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.

Uses

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.

Purification Methods

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.]

References

http://www.alfa.com/en/catalog/B23697/
http://www.organic-chemistry.org/chemicals/reductions/tetramethyldisiloxane-TMDSO.shtm
http://www.infona.pl/resource/bwmeta1.element.elsevier-722236cc-df38-37aa-bbed-029ec07d525f

1,1,3,3-Tetramethyldisiloxane Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 315)Suppliers
Supplier Tel Email Country ProdList Advantage
86-25-84522992 marketing@kingfirstchem.com CHINA 95 58
Hubei Co-Formula Material Tech Co., Ltd.
+86-27-84459282 sales@cfmats.com CHINA 882 58
+8613806087780 shaobowang@simagchem.com CHINA 17384 58
+86-13651442114 +86-13651442114 info@codchem.com China 20378 58
sales@kemiworks.com CHINA 700 58
571-85586718 +8613336195806 sales@capotchem.com China 19994 60
15988280056 mina@xjysi.com CHINA 27 55
371-66670886 info@dakenchem.com China 15392 58
0086-571-86990109 rachelhoo@bayeechem.com China 105 55
0371-55170693 info@tianfuchem.com China 22039 55
Supplier Advantage
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Hubei Co-Formula Material Tech Co., Ltd.
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View Lastest Price from 1,1,3,3-Tetramethyldisiloxane manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2022-02-24 1,1,3,3-Tetramethyldisiloxane
3277-26-7
US $10.00 / KG/Tin 1KG 99% 5000tons per month Wuhan Mulei New Material Technology Co. Ltd
2021-12-01 1, 1, 3, 3-Tetramethyldisiloxane
3277-26-7
US $2.70 / Kg/Drum 10g 99% 10000kg Hebei Crovell Biotech Co Ltd
2021-09-19 1,1,3,3-Tetramethyldisiloxane
3277-26-7
US $1.00 / Kg/Drum 1KG 99% Min. 20mt per month Wuhan KEMI-WORKS Chemical Co., Ltd.
TETRAMETHYLDISILOXANE 1,3-Dihydrotetramethyldisiloxane Bis(dimethylsilyl) oxide bis(dimethylsilyl)oxide  CT2030 Dimethylsilyl ether dimethylsilylether  Disiloxane, 1,1,3,3-tetramethyl- sym-Tetramethyldisiloxane (CH3)2HSiOSiH(CH3)2 1,1,3,3-tetramethyl-disiloxan   1,1-Dihydro-1,1,3,3-tetramethyldisiloxane TMDO TMDSO 1,1,3,3-Tetramethyldisiloxane 3277-26-7 TMDSO TMDSO 1,1,3,3-Tetramethyldisiloxane [(dimethylsilyl)oxy]dimethylsilane SILOXANE HSI2 1,1,3,3-TETRAMETHYLDISILOXANE BIS(DIMETHYLSILYL) ETHER 1,1,3,3-TETRAMETHYLDISILOXANE,WACKER QUALITY Tetramethyldisiloxan 1,1,3,3,-TETRAMETHYLDISLOXANE 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 Dimethylsilyl ethe 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% (dimethyl-λ3-silanyl)oxy-dimethylsilicon (dimethyl-λ3-silanyl)oxy-dimethylsilicon 1,1,3,3-Tetramethyldisiloxane fandachem ETRAMETHYLDISILOXANE(CAS: 3277-26-7) NSC 155369 3277-26-7 CH32SiH2O C4H14OSi2 Organometallic Reagents Organosilicon Si-H Compounds Si-O Compounds Si (Classes of Silicon Compounds) Reduction Siloxanes Tetramethyldisiloxane Silicone serier Reduction Si (Classes of Silicon Compounds) Si-H Compounds Siloxanes Si-O Compounds