... in many fields, such as the chemical industry, pharmacy, agriculture chemical, coating and so on, especially in such synthetic ... ; Polyoxymethylene Alias Paraform;Solid formaldehyde Molecular Formula (CH 2 O) n Appearance & Properties white crystalline powder of low molecular weight, ... has formaldehyde's odor Molecular Weight (30) n Steam Pressure 0.19kPa/25°C; flash point: 70° ...