Para formaldehyde, also known as polyoxymethylene, is the condensation
product of formaldehyde with a typical chain length of 8 - 100 units.
Paraformaldehyde commonly has a slight odor of formaldehyde due to
Paraformaldehyde is a poly-acetal.
Paraformaldehyde forms slowly in formaldehyde solutions (formaline) as a
white precipitate, especially if stored in the cold.
actually contains very little monomeric formaldehyde most of it forms
short chains of polyformaldehyde.
- A few
percent of methanol is often added as a stabilizer to limit the extent
- As a
formaldehyde releasing agent, paraformaldehyde is a suspected
- The new
modification involves immersion in 10% formalin following impregnation
in ammoniacal silver nitrate, and the use of a low concentration of 4%
paraformaldehyde in the developer.
Paraformaldehyde is used as a thermoplastic and is known known as
Paraformaldehyde is used as fumigant, disinfectant, and fungicide, and
for the preparation of pure formaldehyde.
determination of the acidity of oils by catalytic thermometric
titrimetry using paraformaldehyde.
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