Pentamethyldisiloxane
- CAS NO.:1438-82-0
- Empirical Formula: C5H16OSi2
- Molecular Weight: 148.35
- MDL number: MFCD00053658
- EINECS: 215-873-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-19 17:50:00
What is Pentamethyldisiloxane?
The Uses of Pentamethyldisiloxane
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.
The Uses of Pentamethyldisiloxane
Pentamethyldisiloxane is used in the synthesis of siloxane-polyether copolymer surfactants. It is also used as source of trimethylsilyl functional group in organic synthesis.
Synthesis
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.
Properties of Pentamethyldisiloxane
Boiling point: | 86 °C (lit.) |
Density | 0.760 g/mL at 20 °C (lit.) |
refractive index | n |
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. |
Sensitive | Moisture Sensitive |
Hydrolytic Sensitivity | 3: reacts with aqueous base |
BRN | 1734568 |
InChI | InChI=1S/C5H16OSi2/c1-7(2)6-8(3,4)5/h7H,1-5H3 |
EPA Substance Registry System | Disiloxane, pentamethyl- (1438-82-0) |
Safety information for Pentamethyldisiloxane
Signal word | Danger |
Pictogram(s) |
Flame Flammables GHS02 |
GHS Hazard Statements |
H225:Flammable liquids |
Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. |
Computed Descriptors for Pentamethyldisiloxane
InChIKey | AOJHDNSYXUZCCE-UHFFFAOYSA-N |
SMILES | [Si](C)(C)(C)O[SiH](C)C |
New Products
4-Fluorophenylacetic acid 4-Methylphenylacetic acid N-Boc-D-alaninol N-BOC-D/L-ALANINOL Tert-butyl bis(2-chloroethyl)carbamate 3-Morpholino-1-(4-nitrophenyl)-5,6-dihydropyridin- 2(1H)-one Furan-2,5-Dicarboxylic Acid Tropic acid S-2-CHLORO PROPIONIC ACID ETHYL ISOCYANOACETATE 2-Bromo-1,3-Bis(Dimethylamino)Trimethinium Hexafluorophosphate (6-METHYL-[1,3]DITHIOLO[4,5-b]QUINOXALIN-2-ONE INDAZOLE-3-CARBOXYLIC ACID 4-IODO BENZOIC ACID (2-Hydroxyphenyl)acetonitrile 4-Bromopyrazole 5,6-Dimethoxyindanone 2-(Cyanocyclohexyl)acetic acid 4-methoxy-3,5-dinitropyridine 2-aminopropyl benzoate hydrochloride 1-(4-(aminomethyl)benzyl)urea hydrochloride diethyl 2-(2-((tertbutoxycarbonyl)amino) ethyl)malonate tert-butyl 4- (ureidomethyl)benzylcarbamate Ethyl-2-chloro((4-methoxyphenyl)hydrazono)acetateRelated products of tetrahydrofuran
Sodium thiosulfate pentahydrate
1,3-BIS(3-GLYCIDOXYPROPYL)TETRAMETHYLDISILOXANE
3,3-DIPHENYLHEXAMETHYLTRISILOXANE
HEXAETHYLDISILOXANE
1,3-BIS(4-HYDROXYBUTYL)TETRAMETHYLDISILOXANE
1,3-DIPHENYL-1,1,3,3-TETRAMETHYLDISILOXANE
HEXAPHENYLDISILOXANE
1,3-BIS(CARBOMETHOXYPROPYL)TETRAMETHYLDISILOXANE
You may like
-
Pentamethyldisiloxane CAS 1438-82-0View Details
1438-82-0 -
1,1,1,3,3-Pentamethyldisiloxane CAS 1438-82-0View Details
1438-82-0 -
Pentamethyldisiloxane 95% CAS 1438-82-0View Details
1438-82-0 -
Pentamethyldisiloxane CAS 1438-82-0View Details
1438-82-0 -
1975-50-4 98%View Details
1975-50-4 -
2-HYDROXY BENZYL ALCOHOL 98%View Details
90-01-7 -
14714-50-2 (2-Hydroxyphenyl)acetonitrile 98+View Details
14714-50-2 -
118753-70-1 98+View Details
118753-70-1
Statement: All products displayed on this website are only used for non medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.