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Methylal
Introduction and use:
一. basic characters:
English name: Methylal；dimethoxymethane；formal
CAS register number：109-87-5
Chemical formula：C3H8O2；CH2(OCH3)2
Molecular weight：76.1
Melting point: -104.8℃
Boiling point：42.3℃
Density：0.8593
Refractive index：1.3513
二.Main technical index
| Main technical index |
Item |
Specification |
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Industrial grade |
Reagent grade |
Daily grade |
| Appearance |
colorless transaprent liquid |
| Methylal content(GC),%≥ |
99.0 |
99.9 |
99.5 |
| Moisture(GC),%≤ |
0.5 |
0.05 |
0.5 |
| Formaldehyde content%≤ |
0.5 |
0.05 |
1ppm |
| Formaldehyde content%≤ |
- |
- |
1ppm |
三. Main use
Main application fields:
Used as modification additive, organic solvent, synthesis copolymerization formaldehyde resin and others.
Methylal equipment MSDS
1. Physical and chemical constant
International code |
31031 |
CAS NO. |
109-87-5 |
Chinese name |
dimethoxymethane |
English name |
dimethoxymethane；Methylal |
Molecular formula |
C3H8O2；CH3OCH2OCH3 |
Molecular weight |
76.10 |
Appearance and characters |
colorless liquid with chloroform |
Melting point |
104.8℃ Boiling point：42.3℃ |
Vapour pressure |
43.99kPa/20℃ Flash point：-17℃ |
Density |
Relative density(water=1)0.86；relative density(空气=1)2.63 |
Solubility |
Slightly soluble in water, and soluble most organic solvents. |
Hazardous sign |
7(low flash point flammable liquid) |
Stability |
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