D134651

Dimethoxymethane

ReagentPlus^®, 99%

• 동의어(들): Formaldehyde dimethyl acetal, Methylal
• Linear Formula: CH₂(OCH₃)₂
• CAS Number: 109-87-5
• Molecular Weight: 76.09
• Beilstein: 1697025
• EC Number: 203-714-2
• MDL number: MFCD00008495
• UNSPSC 코드: 12352100
• PubChem Substance ID: 24893265
• NACRES: NA.21
• 분석: 99%
• bp: 41-42 °C (lit.)
• vapor pressure: 6.38 psi ( 20 °C)

속성

• vapor density: 2.6 (vs air)
• Quality Level: 200
• vapor pressure: 6.38 psi ( 20 °C)
• 제품 라인: ReagentPlus^®
• 분석: 99%
• 양식: liquid
• autoignition temp.: 459 °F
• expl. lim.: 17.6 %
• refractive index: n20/D 1.354 (lit.)
• bp: 41-42 °C (lit.)
• mp: −105 °C (lit.)
• density: 0.86 g/mL at 25 °C (lit.)
• SMILES string: COCOC
• InChI: 1S/C3H8O2/c1-4-3-5-2/h3H2,1-2H3
• InChI key: NKDDWNXOKDWJAK-UHFFFAOYSA-N

설명

일반 설명

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]

애플리케이션

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]

법적 정보

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

안전성 정보

• 픽토그램: GHS02
• 신호어: Danger
• 유해 및 위험 성명서: H225
• 예방조치 성명서: P210 - P233 - P240 - P241 - P242 - P243
• Hazard Classifications: Flam. Liq. 2
• 보충제 위험성: EUH019
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 1
• Flash Point (°F): -0.4 °F - closed cup
• Flash Point (°C): -18 °C - closed cup
• 개인 보호 장비: Eyeshields, Faceshields, Gloves