DECAMETHYLTETRASILOXANE

CAS No.：141-62-8

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This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
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DECAMETHYLTETRASILOXANE Basic information

Product Name:	DECAMETHYLTETRASILOXANE
Synonyms:	DECAMETHYLETRASILOXANE;DECAMETHYLTETRASILOXANE;Tetrasiloxane, decamethyl-;D3780;decamethyl-tetrasiloxan;Dimethylcyclosilane mixture;1,1,3,3,-Tetramethyl-1,3-di(chloromethyl)disiloxane;Dichloromethyl-tetramethyl-disiloxane
CAS:	141-62-8
MF:	C10H30O3Si4
MW:	310.69
EINECS:	205-491-7
Product Categories:	Intermediates & Fine Chemicals;Pharmaceuticals;Siloxanes;Organics;Organometallic Reagents;Organosilicon;Si (Classes of Silicon Compounds);Si-O Compounds
Mol File:	141-62-8.mol

DECAMETHYLTETRASILOXANE Chemical Properties

Melting point	-68 °C (lit.)
Boiling point	194 °C (lit.)
density	0.854 g/mL at 25 °C (lit.)
vapor density	>1 (vs air)
vapor pressure	73Pa at 25℃
refractive index	n20/D1.389(lit.)
Fp	144 °F
storage temp.	Sealed in dry,Room Temperature
solubility	<0.1mg/l
form	liquid
Specific Gravity	0.854
color	Colourless to Pale Yellow
Water Solubility	6.74μg/L at 23℃
Hydrolytic Sensitivity	1: no significant reaction with aqueous systems
Merck	14,2850
BRN	1776881
Stability:	Moisture Sensitive
LogP	8.21 at 25.1℃
CAS DataBase Reference	141-62-8(CAS DataBase Reference)
NIST Chemistry Reference	Tetrasiloxane, decamethyl-(141-62-8)
EPA Substance Registry System	Tetrasiloxane, decamethyl- (141-62-8)

Safety Information

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	23-24/25-37/39-26
WGK Germany	3
TSCA	Yes
HS Code	29319090

MSDS Information

Provider	Language
ACROS	English
SigmaAldrich	English

DECAMETHYLTETRASILOXANE Usage And Synthesis

Chemical Properties	Colorless or yellowish transparent liquid
Uses	A non-cyclic silicone oligomer. Used in the methylation of mercury(II) salts. Study shows that it transformed by a specific microflora and in the natural environment degraded by mechanisms similar to other organic compounds.
Uses	Decamethyltetrasiloxane can be used as a basis for silicone oils or fluids designed to withstand extremes of temp; as a foam suppressant in petroleum lubricating oil.
Flammability and Explosibility	Flammable

DECAMETHYLTETRASILOXANE Preparation Products And Raw materials

Raw materials	TETRADECAMETHYLHEXASILOXANE-->1-chloro-N,N-diMethylMethanaMine-->DODECAMETHYLCYCLOHEXASILOXANE-->Octamethylcyclotetrasiloxane-->Chlorotrimethylsilane
Preparation Products	Hexamethylcyclotrisiloxane-->Octamethyltrisiloxane-->DODECAMETHYLPENTASILOXANE-->Hexamethyldisiloxane

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