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PENTAMETHYLDISILOXANE

CAS No.
1438-82-0
Chemical Name:
PENTAMETHYLDISILOXANE
Synonyms
DK541;PENTAMETHYLDISILOXANE;pentamethyl-disiloxan;Disiloxane,pentamethyl-;PENTAMETHYLDISILOXANE 97+%;Trimethylsiloxydimethylsilane;(Trimethylsiloxy)dimethylsilane;1,1,1,3,3-Pentamethyldisiloxane;1,1,1,3,3-Pentamethyl-disiloxane;Dimethyl(trimethylsilyloxy)silane
CBNumber:
CB9413159
Molecular Formula:
C5H16OSi2
Molecular Weight:
148.35
MDL Number:
MFCD00053658
MOL File:
1438-82-0.mol
MSDS File:
SDS
Last updated:2024-03-12 22:07:32

PENTAMETHYLDISILOXANE Properties

Boiling point 86 °C (lit.)
Density 0.760 g/mL at 20 °C (lit.)
refractive index n20/D 1.373
Flash point -9°C
form clear liquid
Specific Gravity 0.758
color Colorless to Almost colorless
Water Solubility Not miscible or difficult to mix in water.
Hydrolytic Sensitivity 3: reacts with aqueous base
Sensitive Moisture Sensitive
BRN 1734568
InChI InChI=1S/C5H16OSi2/c1-7(2)6-8(3,4)5/h7H,1-5H3
InChIKey AOJHDNSYXUZCCE-UHFFFAOYSA-N
SMILES [Si](C)(C)(C)O[SiH](C)C
EPA Substance Registry System Disiloxane, pentamethyl- (1438-82-0)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS02
Signal word  Danger
Hazard statements  H225
Precautionary statements  P210
Hazard Codes  F
Risk Statements  11
Safety Statements  16-23-24/25
RIDADR  UN 1993 3/PG 2
WGK Germany  3
10-21
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29319090
NFPA 704
3
0 0

PENTAMETHYLDISILOXANE price More Price(11)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 76840 Pentamethyldisiloxane ≥95.0% 1438-82-0 5ml $94.7 2024-03-01 Buy
TCI Chemical P1535 1,1,1,3,3-Pentamethyldisiloxane >95.0%(GC) 1438-82-0 5mL $51 2024-03-01 Buy
TCI Chemical P1535 1,1,1,3,3-Pentamethyldisiloxane >95.0%(GC) 1438-82-0 25mL $150 2024-03-01 Buy
Alfa Aesar L16577 Pentamethyldisiloxane, 95% 1438-82-0 5g $64.65 2024-03-01 Buy
Alfa Aesar L16577 Pentamethyldisiloxane, 95% 1438-82-0 25g $257 2024-03-01 Buy
Product number Packaging Price Buy
76840 5ml $94.7 Buy
P1535 5mL $51 Buy
P1535 25mL $150 Buy
L16577 5g $64.65 Buy
L16577 25g $257 Buy

PENTAMETHYLDISILOXANE Chemical Properties,Uses,Production

Uses

Pentamethyldisiloxane is used in the synthesis of siloxane-polyether copolymer surfactants. It is also used as source of trimethylsilyl functional group in organic synthesis.

Uses

Pentamethyldisiloxane, is an organosilicon compound used in synthesis of siloxane-polyether copolymer surfactants. Pentamethyldisiloxane can also be used as source of the trimethylsilyl functional group in organic synthesis.

Synthesis

Synthesis_1438-82-0
Take prepared potassium trimethylsilanolate 1.12kg in 2L of anhydrous tetrahydrofuran, was added dropwise with stirring dimethylchlorosilane1kg, dropwise, room temperature reaction 1h, filtered, concentrated, extracted with ether, dried and concentrated to give a high purity of 98% or more of pentamethyl disiloxane 1.2kg.

PENTAMETHYLDISILOXANE Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 153)Suppliers
Supplier Tel Email Country ProdList Advantage
Hubei Changfu Chemical Co., Ltd.
+86-027-84396550 +8617721064038 sales@cfsilanes.com China 401 58
Shanghai Daken Advanced Materials Co.,Ltd
+86-371-66670886 info@dakenam.com China 15928 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21691 55
Nanjing ChemLin Chemical Industry Co., Ltd.
025-83697070 product@chemlin.com.cn CHINA 3012 60
ATK CHEMICAL COMPANY LIMITED
+undefined-21-51877795 ivan@atkchemical.com China 32480 60
Win-Win Chemical CO., Limited
0086-577-64498589 sales@win-winchemical.com CHINA 998 58
Shanghai Worldyang Chemical Co.,Ltd.
,+86-21-56795779; +8613651600618 sales@worldyachem.com China 879 58
Chongqing Chemdad Co., Ltd
+86-023-61398051 +8613650506873 sales@chemdad.com China 39916 58
career henan chemical co
+86-0371-86658258 15093356674; factory@coreychem.com China 29826 58
Hubei Co-Formula Material Tech Co., Ltd.
+86-27-84459282 sales@cfmats.com CHINA 882 58

View Lastest Price from PENTAMETHYLDISILOXANE manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1,1,1,3,3-Pentamethyldisiloxane pictures 2024-04-24 1,1,1,3,3-Pentamethyldisiloxane
1438-82-0
US $0.00 / kg 1kg 95 20 tons Hubei Changfu Chemical Co., Ltd.
PENTAMETHYLDISILOXANE pictures 2024-01-23 PENTAMETHYLDISILOXANE
1438-82-0
US $0.00 / KG 1KG 98% 1000KG /month Shanghai Daken Advanced Materials Co.,Ltd
Pentamethyl Disiloxane pictures 2022-02-25 Pentamethyl Disiloxane
1438-82-0
US $14.00 / KG 1KG 99% 100KG Hong Kong Tiansheng New Material Trading Co., Ltd
pentamethyl-disiloxan PENTAMETHYLDISILOXANE PENTAMETHYLDISILOXANE 97+% (Trimethylsiloxy)dimethylsilane 1,1,1,3,3-Pentamethylpropanedisiloxane 2,2,4-Trimethyl-3-oxa-2,4-disilapentane Trimethylsiloxydimethylsilane Dimethyl(trimethylsilyloxy)silane 1,1,1,3,3-Pentamethyldisiloxane 1,1,1,3,3-Pentamethyl-disiloxane Disiloxane,pentamethyl- [(dimethylsilyl)oxy]trimethylsilane Disiloxane, 1,1,1,3,3-pentamethyl- DK541 1438-82-0 CH33SiOSiHCH32 C5H16OSi2 Organosilicon Organometallic Reagents Siloxanes Chemical Synthesis Organometallic Reagents Organosilicon Siloxanes