47676

Formaldehyde dimethyl acetal

absolute, over molecular sieve (H₂O ≤0.01%), ≥99.0% (GC)

• Synonim(y): Dimethoxymethane, Methylal
• Wzór liniowy: CH₂(OCH₃)₂
• Numer CAS: 109-87-5
• Masa cząsteczkowa: 76.09
• UNSPSC Code: 12352100
• NACRES: NA.22
• PubChem Substance ID: 57651079
• EC Number: 203-714-2
• Beilstein/REAXYS Number: 1697025
• MDL number: MFCD00008495
• Assay: ≥99.0% (GC)

Właściwości

• grade: absolute
• Quality Segment: 100
• assay: ≥99.0% (GC)
• quality: over molecular sieve (H₂O ≤0.01%)
• refractive index: n20/D 1.354
• density: 0.860 g/mL at 20 °C (lit.)
• functional group: acetal, ether
• SMILES string: COCOC
• InChI: 1S/C3H8O2/c1-4-3-5-2/h3H2,1-2H3
• InChI key: NKDDWNXOKDWJAK-UHFFFAOYSA-N

Opis

General description

Formaldehyde dimethyl acetal (FDA, FDMA, FADMA, dimethoxymethane, DMM, methylal) is a biodegradable dimethyl acetal. It has been synthesized by condensing formaldehyde with methanol in the presence of acid catalyst. It is amphiphilic in nature with low viscosity, surface tension and boiling point. It is a flammable, highly volatile solvent with excellent dissolving power. It is reported to form trimethylorthoformate by anodic methoxylation in basic methanol.

Application

Formaldehyde dimethyl acetal may be used in the following studies:

• Synthesis of methoxymethyl (MOM) ethers.
• As an external cross-linker to form microporous polymers.
• Dehydration of biological samples for scanning electron microscopy (SEM).

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Informacja o środkach bezpieczeństwa

• Co się dzieje?: WGK 1
• Piktogramy: GHS02
• Słowo ostrzegawcze: Danger
• Kody zagrożeń: H225
• Ostrzeżenia: P210 - P233 - P240 - P241 - P242 - P243
• Hazard Classifications: Flam. Liq. 2
• supp_hazards: EUH019
• Klasa składowania: 3 - Flammable liquids
• Temperatura zapłonu (°F): -0.4 °F - closed cup
• Temperatura zapłonu (°C): -18 °C - closed cup
• PPE (środki ochrony indywidualnej): Eyeshields, Faceshields, Gloves