Chinese Name: Methylal; Formaldehyde dimethyl acetal; Dimethoxymethane;
English Name: Methylal; dimethoxymethane; formal
CAS Registry Number: 109-87-5
Chemical Formula: C₃H₈O₂; CH₂(OCH₃)₂
Molecular Weight: 76.1; also referred to as 76.09 depending on decimal retention.
Melting Point: -104.8°C
Boiling Point: 42.3°C
Density: 0.8593
Refractive Index: 1.3513
Applications:
⑴ Application in insecticide formulations.
⑵ Application in leather polishes and automotive polish formulations.
⑶ Application in air freshener formulations.
⑷ Application in ribbon formulations.
⑸ Application in electronic equipment cleaner formulations.
⑹ Methylal can be used for quantitative dissolution of fats, waxes, nitrocellulose, natural resins, rosin, tall oil, most synthetic resins, polystyrene, polyvinyl acetate polymers and copolymers, polyesters, acrylates, methacrylates, polyamide resins, epoxy resins, chlorinated rubber, etc.
⑺ Mixing a small amount of methylal with ethanol, esters, or ketones can enhance the solvent's effectiveness. These characteristics make methylal particularly suitable as an additive in paint and varnish formulations, glues and adhesives, inks, and various aerosol products, ensuring excellent uniform phase in the products.