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LC2777 Formaldehyde dimethyl acetal

for synthesis


Order number Packaging Quantity Price €
AC29777 Glass bottle 250 ml 14.49
AC29777 Glass bottle 1 l 46.8


Product information
Synonyms Formal, Methylal, Dimethoxymethane
Hill Formula C3H8O2
Chemical formula CH2(OCH3)2
HS Code 2911 00 00
EC number 203-714-2
Molar mass 76.09 g/mol
Storage Store below +15°C.
CAS number 109-87-5


Chemical and physical data
Ignition temperature 235 °C
Solubility 285 g/l (20 °C)
Saturation concentration (air) 1375 g/m3 (20 °C)
Melting point -105 °C
Molar mass 76.09 g/mol
Density 0.86 g/cm3 (20 °C)
Boiling point 43 °C
Vapor pressure 440 hPa (20 °C)
Explosion limit 1.6 – 17.6 %(V)
Flash point -18 °C
Refractive index 1.3541 (20 °C, 589 nm)


Safety information according to GHS
Hazard Statement(s) H225: Highly flammable liquid and vapour.
Precautionary Statement(s) P210: Keep away from heat/sparks/open flames/hot surfaces. – No smoking.
P233: Keep container tightly closed.
P260: Do not breathe vapour.
P403 + P235: Store in a well-ventilated place. Keep cool.
Signal Word Danger
Hazard Pictogram(s)
RTECS PA8750000
Storage class 3 Flammable Liquids
WGK WGK 1 slightly water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.


Safety information
R Phrase R 11
Highly flammable.
S Phrase S 16-23-24/25
Keep away from sources of ignition – No smoking.Do not breathe vapour.Avoid contact with skin and eyes.
Categories of danger highly flammable
Hazard Symbol Flammable


Transport information
Declaration (transport by sea) IMDG-Code UN 1234 METHYLAL, 3, II
Declaration (transport by air) IATA-DGR UN 1234 METHYLAL, 3, II


Toxicological data
LD 50 oral LD50 rat 6653 mg/kg


Assay (GC, area%) ≥ 98 %
Density (d 20 °C/ 4 °C) 0.858 – 0.860
Water (K. F.) ≤ 0.3 %
Identity (IR) passes test


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