Paraformaldehyde, granular (DG) EM grade

Paraformaldehyde (granular) is a fast penetrating E.M. fixative in combination with other fixatives, such as Glutaraldehyde, Acrolein, and Osmium Tetroxide.  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 - ask. 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.Karnovsky, M.J., J. Cell Biol., 27, 137A (1965).Glauert, A. Pract. Methods in E.M. Vol.3 North-Holland Pub. (1974)Hayat, M.A. Principles and Tech., of EM (Univ. Park Press), 68 (1981)See All Paraformald...