1,1,3,3-Tetramethyl...

1,1,3,3-Tetramethyldisiloxane   CAS 3277-26-7    In stock

1,1,3,3-Tetramethyldisiloxane CAS 3277-26-7 In stock

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1,1,3,3-Tetramethyldisiloxane TMDSO Tetramethyldisiloxane

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1,1,3,3-Tetramethyldisiloxane   CAS 3277-26-7    In stock

 

3277-26-7

 

CAS 3277-26-7

 

TETRAMETHYLDISILOXANE

 

item

index

appearance

colorless transparent liquid

chroma、hazen≤

10

density20℃

0.74~0.76

refractive index 20℃

1.3669

viscosity 25℃㎜2/s

2.0~2.5

boiling point℃

70.1

flash point(cleveland open cup)℃

≤23

purity% ≥

99

 

 

highly quality and immedaite delivery

 

1,1,3,3-Tetramethyldisiloxane 3277-26-7  TMDSO

1,1,3,3-Tetramethyldisiloxane Manufacturer High quality Best price In stock factory CAS 3277-26-7

1,1,3,3-Tetramethyldisiloxane CAS 3277-26-7

TMDSO CAS 3277-26-7

 

Name:    1,1,3,3-Tetramethyldisiloxane
Synonyms:    TETRAMETHYLDISILOXANE;(CH3)2HSiOSiH(CH3)2;1,1,3,3-tetramethyl-disiloxan;1,3-Dihydrotetramethyldisiloxane;Bis(dimethylsilyl) oxide;bis(dimethylsilyl)oxide;CT2030;Dimethylsilyl ether   Dimethylsilyl ether; 1,3-Dihydrotetramethyldisiloxane; Disiloxane, 1,1,3,3-tetramethyl-; Bis(dimethylsilyl) ether;Disiloxane, 1,1,3,3-tetramethyl-; 1,1,3,3-tetramethyldisiloxane-1,3-diyl; 1,1,1,3-tetramethyldisiloxane; Tetramethyldisiloxane; TMDSO; Tetramethyldiydrodisiloxane
CAS:    3277-26-7
MF:    C4H14OSi2
MW:    134.32
EINECS:    221-906-4
Product Categories:    -;Silicone serier;Industrial/Fine Chemicals;Reduction;Si (Classes of Silicon Compounds);Tetramethyldisiloxane;Si-H Compounds;Siloxanes;Si-O Compounds;Synthetic Organic Chemistry;Hydrogensilanes Hydrogensiloxanes;Reducing Agents;Organometallic Reagents;Organosilicon
Mol File:    3277-26-7.mol
1,1,3,3-Tetramethyldisiloxane Structure
1,1,3,3-Tetramethyldisiloxane Chemical Properties

Appearance & Physical State     Colorless liquid.
Density     0.76
Boiling Point     71ºC
Melting Point     <-78ºC
Flash Point     -20ºC
Refractive Index     1.369-1.371
Water Solubility     DECOMPOSES
Stability     Stable under normal temperatures and pressures.
Storage Condition     2-8ºC
Safety Info
RTECS     JN1000000
Hazard Class     3
Safety Statements     16-26-36-9-33-29
HS Code     29310095


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.)
Fp     14 °F
storage temp.     2-8°C
form     liquid
color     colorless
Specific Gravity    0.757
explosive limit    0.8-62.9%(V)
Water Solubility     DECOMPOSES

HS Code     29310095
MSDS Information


1,1,3,3-Tetramethyldisiloxane Usage And Synthesis
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. 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    #
//www.organic-chemistry.org/chemicals/reductions/tetramethyldisiloxane-TMDSO.shtm
#
1,1,3,3-Tetramethyldisiloxane Preparation Products And Raw materials

 
 
Product Name: 1,1,3,3-Tetramethyldisiloxane
Synonyms: TETRAMETHYLDISILOXANE;(CH3)2HSiOSiH(CH3)2;1,1,3,3-tetramethyl-disiloxan;1,3-Dihydrotetramethyldisiloxane;Bis(dimethylsilyl) oxide;bis(dimethylsilyl)oxide;CT2030;Dimethylsilyl ether
CAS: 3277-26-7
MF: C4H14OSi2
MW: 134.32
EINECS: 221-906-4
Product Categories: -;Silicone serier;Industrial/Fine Chemicals;Reduction;Si (Classes of Silicon Compounds);Tetramethyldisiloxane;Si-H Compounds;Siloxanes;Si-O Compounds;Synthetic Organic Chemistry;Hydrogensilanes Hydrogensiloxanes;Reducing Agents;Organometallic Reagents;Organosilicon
Mol File: 3277-26-7.mol
1,1,3,3-Tetramethyldisiloxane Structure
1,1,3,3-Tetramethyldisiloxane Chemical 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.)
Fp 14 °F
storage temp. 2-8°C
form liquid
color colorless
Specific Gravity 0.757
explosive limit 0.8-62.9%(V)
Water Solubility DECOMPOSES
Sensitive Moisture Sensitive
BRN 1733364
InChIKey NVYQDQZEMGUESH-UHFFFAOYSA-N
CAS DataBase Reference 3277-26-7(CAS DataBase Reference)
NIST Chemistry Reference ((CH3)2SiH)2O(3277-26-7)
EPA Substance Registry System Disiloxane, 1,1,3,3-tetramethyl-(3277-26-7)
Safety Information
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
F 10-21
Autoignition Temperature 240 °C
TSCA Yes
HazardClass 3
PackingGroup II
HS Code 29310095
MSDS Information
Provider Language
1,1,3,3-Tetramethyldisiloxane English
ACROS English
SigmaAldrich English
ALFA English
1,1,3,3-Tetramethyldisiloxane Usage And Synthesis
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. 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 #
//www.organic-chemistry.org/chemicals/reductions/tetramethyldisiloxane-TMDSO.shtm
#
1,1,3,3-Tetramethyldisiloxane Preparation Products And Raw materials
 
 

 

 

Chemwill Asia co.,Ltd is one of the leading manufacturer in CHINA. 

Our main production base is located in Xuzhou industry park. We produce a wide range of organics including Basic chemicals , Fine chemicals,  Active pharmaceutical ingredients(APIs), Veterinary,  Indole derivatives, Aromatics, Fluorine, Boronic acids, organocatalysts, chiral building blocks, heterocyclic compounds. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place. 

 

Our R&D team masters core technology for process-design of target building block as well as Tailor-made fine chemicals. Our manufactory specialised in extreme temperature conditions (-100ºC to +300ºC), hydrogenations reaction under high pressure, suzuki coupling reaction, photochemical reaction, Mitsunobu reactions, enantioselective reactions and asymmetric synthesis. 

 

Think Chemistry,Think CHemWill

 

 

Factory Plant Address:
High-Tech Industrial park,Chemical Economical Development Zone,Xuzhou, Jiangsu-Province, P.R.China


Shanghai office: (Export Department)
Address: 16FL., INDUSTRY & COMMERCIAL BUILDING, NO.45 YAN’AN ROAD(E), 200002, SHANGHAI, CHINA

 

Ms Mary Chi   Sales manager 
 
 
 

 

Details:

Chemwill Asia co.,Ltd is one of the leading manufacturer in CHINA.Our main production base is located in Xuzhou industry park. We produce a wide range of organics including Active pharmaceutical ingredients(APIs), Veterinary, Indole derivatives, Aromatics, Fluorine, Boronic acids, organocatalysts, chiral building blocks, heterocyclic compounds. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block as well as Tailor-made fine chemicals. Our manufactory specialised in extreme temperature conditions (-100oC to +300oC), hydrogenations reaction under high pressure, suzuki coupling reaction, photochemical reaction, Mitsunobu reactions, enantioselective reactions and asymmetric synthesis.we specialize in developing innovative processes for the synthesis of a wide range of products. we also undertake custom synthesis and contract manufacturing. We have Strong quality control system: Strength of our ethical commitment to quality control and quality assurance systems firmly based on ISO standard. QA and QC used in the whole process of raw materal control, process control and finished product quality inspection. Oue company has passed has passed the ISO9001:2008 .We have flexible payment terms with all of our clients: Various payment terms such as L/C,D/P,D/A and T/T will be accepted. we've been authorized the import&export qualification by the government and also has passed the “iso 9001-2008 quality management system” certification. Our company has strong R&D ability and production experience to provide the customers new APIs. We specialize in developing innovative processes for the synthesis of a wide range of products. We also undertake custom synthesis and contract manufacturing.we always stand on the quality of product as our life, develop in the direction of customers requirement and aim at creating greater value for customers.innovation and honesty, we will make common development with the masses of customers at home and abroad hand in hand by our best service.the aim of qdsigma is a quality policy that "elements in the system all have been satisfied, personnel has been trained; every batch of material is checked, each procedure guarantees the quality; every bag of our products is top grade, service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. the quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services. the aim of qdsigma is a quality policy that "elements in the system all have been satisfied, personnel has been trained; every batch of material is checked, each procedure guarantees the quality; every bag of our products is top grade, service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. the quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.our concept,1.client is first. 2.credibility is the most important.3.quality control is our life.4.great sense of responsibility.5.we will be responsible for not only our products, our clients, also the society.the corporation's slogan:reliable, professional, cooperative and innovative.the corporation's philosophy: widely absorb different excellent views and ideas from all over the world.the corporation's destination: we will constantly strive to supply customers with new and high-tech products and will keep the leadership in the field. Think Chemistry,Think CHemWill.
 
 
 
Our main production base is located in Xuzhou industry park. We produce a wide range of organics including Basic chemicals , Fine chemicals,  Active pharmaceutical ingredients(APIs), Veterinary,  Indole derivatives, Aromatics, Fluorine, Boronic acids, organocatalysts, chiral building blocks, heterocyclic compounds. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place. 

 

Think Chemistry,Think CHemWill

 

Factory Plant Address:
High-Tech Industrial park,Chemical Economical Development Zone,Xuzhou, Jiangsu-Province, P.R.China


Shanghai office: (Export Department)
Address: 16FL., INDUSTRY & COMMERCIAL BUILDING, NO.45 YAN’AN ROAD(E), 200002, SHANGHAI, CHINA

 

Ms Mary Chi   Sales manager 
 
 
Website: #
 

 

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