Saltar al contenido
Merck

D134651

Sigma-Aldrich

Dimethoxymethane

ReagentPlus®, 99%

Sinónimos:

Formaldehyde dimethyl acetal, Methylal

Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización

Seleccione un Tamaño


Seleccione un Tamaño

Cambiar Vistas

About This Item

Fórmula lineal:
CH2(OCH3)2
Número de CAS:
Peso molecular:
76.09
Beilstein/REAXYS Number:
1697025
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21

vapor density

2.6 (vs air)

Quality Level

vapor pressure

6.38 psi ( 20 °C)

product line

ReagentPlus®

assay

99%

form

liquid

autoignition temp.

459 °F

expl. lim.

17.6 %

refractive index

n20/D 1.354 (lit.)

bp

41-42 °C (lit.)

General description

Dimethoxymethane (DMM, methylal) is a biodegradable dimethyl acetal. It can be synthesized by acid catalyzed condensation of formaldehyde with methanol. It is amphiphilic in nature with low viscosity, surface tension and boiling point. It is a flammable, highly volatile solvent with good dissolving power.[1] DMM is considered as a potential alternative fuel and fuel additive due to its high oxygen content and its ability to enhance the combustion characteristics of diesel and petrol. Its thermal diffusivity has been determined by photoacoustic method.[2] Analysis of the molecular structure of DMM by electron diffraction technique shows that it has C2 symmetry with a gauche-gauche conformation.[3]

Application

Dimethoxymethane (Formaldehyde dimethyl acetal) may be used in the synthesis of methoxymethyl (MOM) ethers.[4][5][6] It may also be used as an external cross-linker to form microporous polymers.[7]

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Flame

signalword

Danger

hcodes

Hazard Classifications

Flam. Liq. 2

supp_hazards

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

-0.4 °F - closed cup

flash_point_c

-18 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves


Elija entre una de las versiones más recientes:

Certificados de análisis (COA)

Lot/Batch Number

¿No ve la versión correcta?

Si necesita una versión concreta, puede buscar un certificado específico por el número de lote.

¿Ya tiene este producto?

Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.

Visite la Librería de documentos

The molecular structure of dimethoxymethane.
Astrup EE.
Acta Chemica Scandinavica, 27(9), 3271-3276 (1973)
A photoacoustic study on Dimethoxymethane.
Bama GK and Ramachandran K.
AIP Conference Proceedings, 1004, 191-191 (2008)
A new strategy to microporous polymers: knitting rigid aromatic building blocks by external cross-linker.
Li B, et al.
Macromolecules, 44(8), 2410-2414 (2011)
An efficient protocol for the preparation of MOM ethers and their deprotection using zirconium (IV) chloride.
Sharma GVM, et al.
Tetrahedron Letters, 45(50), 9229-9232 (2004)
Jenn-Huei Lii et al.
Carbohydrate research, 340(5), 853-862 (2005-03-23)
The rotational barrier for a methyl group at the end of an anomeric system is sometimes lower than we might have anticipated. Thus, in the trans-trans conformation of dimethoxymethane, the barrier to methyl rotation is calculated (B3LYP/6-311++G(2d,2p)) to be 2.22

Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.

Póngase en contacto con el Servicio técnico