Paraformaldehyde, granular, EM Grade, purified

Supplier: Electron Microscopy Sciences
Danger

Synonyms: Polyoxymethylene

19210 19208
100504-160EA 40.3 USD
100504-160 100504-162
Paraformaldehyde, granular, EM Grade, purified
Paraformaldehyde

Paraformaldehyde is the condensation product of methylene glycol, a substance not so far isolated in its pure form; it is a white solid with a formaldehyde content between 78 and 98% and is supplied either as a Prill or Granular.


All forms contain more than 95.5% paraformaldehyde content. The Prill and Granular forms are small, free-flowing, dust-free beads, the most desired by EM users.
A fast-penetrating EM fixative used in combination with Glutaraldehyde, Acrolein, and Osmium Tetroxide.
Karnovsky, M.J., J. Cell Biol., 27, 137A (1965). Hayat, M.A. Principles & Tech., of EM (Univ. Park Press), 68 (1981).

Formula: (CH₂O)n
Melting Pt: 120 °C (248 °F)
MDL Number: MFCD00133991
CAS Number: 30525-89-4
UN: 2213
ADR: 4.1,III
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