8.20493

Formaldehyde dimethyl acetal

for synthesis

• Synonym(s): Formaldehyde dimethyl acetal, Formal, Methylal, Dimethoxymethane
• Linear Formula: CH₂(OCH₃)₂
• CAS Number: 109-87-5
• Molecular Weight: 76.09
• MDL number: MFCD00008495
• UNSPSC Code: 12352112
• EC Index Number: 203-714-2

Properties

• vapor pressure: 440 hPa ( 20 °C)
• Assay: ≥98.0% (GC)
• form: liquid
• autoignition temp.: 235 °C
• potency: 6653 mg/kg LD₅₀, oral (Rat)
• expl. lim.: 1.6-17.6 % (v/v)
• bp: 43 °C/1013 hPa
• mp: -105 °C
• transition temp: flash point -18 °C
• density: 0.86 g/cm³ at 20 °C
• InChI: 1S/C3H8O2/c1-4-3-5-2/h3H2,1-2H3
• InChI key: NKDDWNXOKDWJAK-UHFFFAOYSA-N

Description

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Methanol (GC, area%): ≤ 0.50 % (a/a)
Density (d 20 °C/ 4 °C): 0.858 - 0.862
Water (K. F.): ≤ 0.30 %
Identity (IR): passes test

Safety Information

• Pictograms: GHS02
• Signal Word: Danger
• Hazard Statements: H225
• Precautionary Statements: P210 - P233 - P240 - P241 - P242 - P243
• Hazard Classifications: Flam. Liq. 2
• Supplementary Hazards: 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