<tt id="qswwi"></tt>
<acronym id="qswwi"><small id="qswwi"></small></acronym>
<acronym id="qswwi"></acronym>
<acronym id="qswwi"><center id="qswwi"></center></acronym>
<sup id="qswwi"><div id="qswwi"></div></sup>
<acronym id="qswwi"></acronym>
<acronym id="qswwi"></acronym>
<acronym id="qswwi"><center id="qswwi"></center></acronym>
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
TMDSO;TETRAMETHYLDISILOXANE;TMDO;(Me2HSi)2O;Dimethylsilyl ether;Disiloxane, 1,1,3,3-tetramethyl-;5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyridine;DK740;DK741;DK265
CBNumber:
CB5355451
Molecular Formula:
C4H14OSi2
Molecular Weight:
134.32
MDL Number:
MFCD00008256
MOL File:
3277-26-7.mol
MSDS File:
SDS
Last updated:2023-11-16 16:15:21

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.
solubility soluble in Chloroform
pka 11.9[at 20 ℃]
form liquid
color colorless
Specific Gravity 0.757
explosive limit 0.8-62.9%(V)
Viscosity 0.7mm2/s
Water Solubility DECOMPOSES
Sensitive Moisture Sensitive
Hydrolytic Sensitivity 3: reacts with aqueous base
BRN 1733364
InChIKey NVYQDQZEMGUESH-UHFFFAOYSA-N
LogP -0.38-4.5 at 20-25℃
CAS DataBase Reference 3277-26-7(CAS DataBase Reference)
EWG's Food Scores 1
NIST Chemistry Reference ((CH3)2SiH)2O(3277-26-7)
EPA Substance Registry System Disiloxane, 1,1,3,3-tetramethyl- (3277-26-7)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS02
Signal word  Danger
Hazard statements  H225
Precautionary statements  P210-P233-P240-P241-P242-P243
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
NFPA 704
3
0 1

1,1,3,3-Tetramethyldisiloxane price More Price(30)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 235733 1,1,3,3-Tetramethyldisiloxane 97% 3277-26-7 25g $35.1 2023-06-20 Buy
Sigma-Aldrich 235733 1,1,3,3-Tetramethyldisiloxane 97% 3277-26-7 100g $116 2023-06-20 Buy
TCI Chemical T1437 1,1,3,3-Tetramethyldisiloxane >97.0%(GC) 3277-26-7 25mL $25 2023-06-20 Buy
TCI Chemical T1437 1,1,3,3-Tetramethyldisiloxane >97.0%(GC) 3277-26-7 250mL $138 2023-06-20 Buy
Alfa Aesar B23697 1,1,3,3-Tetramethyldisiloxane, 97% 3277-26-7 25g $42.5 2023-06-20 Buy
Product number Packaging Price Buy
235733 25g $35.1 Buy
235733 100g $116 Buy
T1437 25mL $25 Buy
T1437 250mL $138 Buy
B23697 25g $42.5 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 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.

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 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.

Flammability and Explosibility

Highly flammable

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

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

2401-73-2
3277-26-7
Synthesis of 1,1,3,3-Tetramethyldisiloxane from 1,3-DICHLOROTETRAMETHYLDISILOXANE

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

Raw materials

Preparation Products

Global( 393)Suppliers
Supplier Tel Email Country ProdList Advantage
SIMAGCHEM CORP
+86-13806087780 sale@simagchem.com China 17368 58
CD Chemical Group Limited
+8615986615575 info@codchem.com China 20356 58
Wuhan Kemi-Works Chemical Co., Ltd.
+86-2785736489 +8618171418573 sales@kemiworks.com China 704 58
Henan DaKen Chemical CO.,LTD.
+86-0371-66670886 info@dakenchem.com China 14710 58
Hebei Mojin Biotechnology Co., Ltd
15028179902 +8615028179902 sales@hbmojin.com China 12320 58
Hebei Yanxi Chemical Co., Ltd.
+8617531190177 peter@yan-xi.com China 5944 58
Capot Chemical Co.,Ltd.
571-85586718 +8613336195806 sales@capotchem.com China 29767 60
Jiangxi New jiayi New Materials Co., Ltd.
15988280056 mina@xjysi.com CHINA 27 55
Hangzhou Bayee Chemical Co., Ltd.
0086-571-86990109 rachelhoo@bayeechem.com China 104 55
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21719 55

Related articles

View Lastest Price from 1,1,3,3-Tetramethyldisiloxane manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1,1,3,3-Tetramethyldisiloxane pictures 2023-11-16 1,1,3,3-Tetramethyldisiloxane
3277-26-7
US $50.00-3.00 / kg 1kg 0.99 20 tons Hebei Yanxi Chemical Co., Ltd.
1,1,3,3-Tetramethyldisiloxane pictures 2023-11-01 1,1,3,3-Tetramethyldisiloxane
3277-26-7
US $0.00-0.00 / kg 0.1kg 99.0%min 20000kg Hangzhou ICH Biofarm Co., Ltd
1,1,3,3-Tetramethyldisiloxane pictures 2023-09-08 1,1,3,3-Tetramethyldisiloxane
3277-26-7
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology 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 ETRAMETHYLDISILOXANE(CAS: 3277-26-7) NSC 155369 1,1,3,3-Tetramethyldisiloxane (TMDS) extrapure, 98% Hydrogen containing double head (1,1,3, 3-tetramethyldisiloxane) 1,1,3,3-Tetramethyldisiloxane CAS.3277-26-7 DK740 DK741 DK265 1,1,3,3-Tetramethyldisiloxane(TMDS) 3277-26-7 277-26-7 CH32SiH2O C4H14OSi2 Organometallic Reagents Organosilicon Si-H Compounds Si-O Compounds Si (Classes of Silicon Compounds) Reduction Siloxanes
<tt id="qswwi"></tt>
<acronym id="qswwi"><small id="qswwi"></small></acronym>
<acronym id="qswwi"></acronym>
<acronym id="qswwi"><center id="qswwi"></center></acronym>
<sup id="qswwi"><div id="qswwi"></div></sup>
<acronym id="qswwi"></acronym>
<acronym id="qswwi"></acronym>
<acronym id="qswwi"><center id="qswwi"></center></acronym>
久久免费观看国产精品 国产永久免费视频播放器| 99热精品在线观看| 天天久久久久久精品影院| 欧美色图片区| 久久久久久精品色费色费s| 国产午夜精品色欲AV| 欧美国产一区二区A片久久| 日本美女一级片| 久久精品国产亚洲av影院| 一本一道av无码中文字幕﹣百度| 亚洲熟妇色XXXXX欧美老| 精品无码一区二区三区亚洲桃色差| 亚洲国产精品久久久久爰色欲| 免费无码成人3D漫画网站| 人妻少妇精品视频三区二区一区| 九七电影院理论电影| 欧美性受xxxx狂喷水| 亚洲欧洲成人a∨在线观看| 久久在精品线影院精品国产| 欧美性猛XXXX黑人猛交| 久久久久久亚洲精品| 无码人妻精一区二区三区| 久久精品色| 成人午夜精品久久久久久久秋霞| 久久超乳爆乳中文字幕| 欧美三级韩国三级日本三斤| 深夜在线| 国产仑乱子老女人露脸| 色cccwww在线播放| 国产美女一级高清免费观看| 久久综合久中文字幕青草| 精品欧洲AV一区二区三区| 伊人激情AV一区二区三区| 久久天天躁狠狠躁夜夜AⅤ麻豆| 国产成人啪精品视频免费网| 免费网站看v片在线毛| 亚洲.国产.欧美一区二区三区| 镜花缘之决战女儿国| 韩日在线| 亚洲伊人久久av| 亚洲av无码电影在线播放| http://www.hycpj.cn http://www.zenbox.com.cn http://www.yes518.com.cn