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 also C004 prepared paraformaldehyde.
Paraformaldehyde solutions are listed (on page C4) as Formaldehyde

Shipping GA within Australia now costs real money - we suggest switching to prepared Paraformaldehyde