Dimethoxymethane
SIAL/D134651 - ReagentPlus®, 99%
Synonym: Formaldehyde dimethyl acetal; Methylal
CAS Number: 109-87-5
Empirical Formula (Hill Notation): C3H8O2
Molecular Weight: 76.09
EC Number: 203-714-2
MDL Number: MFCD00008495
Linear Formula: CH2(OCH3)2
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: D134651-100ML.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: D134651-1L.
| assay | 99% |
| autoignition temp. | 459 °F |
| bp | 41-42 °C (lit.) |
| density | 0.86 g/mL at 25 °C (lit.) |
| expl. lim. | 17.6 % |
| form | liquid |
| InChI | 1S/C3H8O2/c1-4-3-5-2/h3H2 |
| InChI key | NKDDWNXOKDWJAK-UHFFFAOYSA |
| mp | −105 °C (lit.) |
| product line | ReagentPlus® |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | COCOC |
| vapor density | 2.6 (vs air) |
| vapor pressure | 6.38 psi ( 20 °C) |
| Application: | Dimethoxymethane (Formaldehyde dimethyl acetal) may be used in the synthesis of methoxymethyl (MOM) ethers. It may also be used as an external cross-linker to form microporous polymers. |
| 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. 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. Analysis of the molecular structure of DMM by electron diffraction technique shows that it has C2 symmetry with a gauche-gauche conformation. |
| Legal Information: | ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Packaging: | 1, 2, 2.5 L in glass bottle |
| Packaging: | 18 L in steel drum |
| Packaging: | 5, 100 mL in glass bottle |
| Symbol |  GHS02 |
| Signal word | Danger |
| Hazard statements | H225 |
| Precautionary statements | P210 - P233 - P240 - P241 - P242 - P243 |
| Hazard Codes | F,Xi |
| Risk Statements | 11-19-36 |
| Safety Statements | 7/9-16-26-33 |
| RIDADR | UN1234 - class 3 - PG 2 - Methylal |
| WGK Germany | WGK 1 |
| Flash Point(F) | -0.4 °F - closed cup |
| Flash Point(C) | -18 °C - closed cup |
| Supplemental Hazard Statements | EUH019 |
| Purity | 99% |
| bp | 41-42 °C (lit.) |
| mp | −105 °C (lit.) |
| Density | 0.86 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |