16005 Aldrich


meets analytical specification of DAC, 95.0-100.5%

Synonym: Polyoxymethylene



Related Categories Aldehydes, Building Blocks, C1 to C6, Carbonyl Compounds, Chemical Synthesis,
vapor density   1.03 (vs air)
vapor pressure   <1.45 mmHg ( 25 °C)
assay   95.0-100.5%
autoignition temp.   572 °F
quality   meets analytical specification of DAC
expl. lim.   73 %
impurities   residual solvents, in accordance
  <0.1% sulfated ash
  10 ppm heavy metals (as Pb)
mp   120-170 °C(lit.)
solubility   water: insoluble
density   0.88 g/mL at 25 °C(lit.)
suitability   in accordance for appearance of solution
  suitable for acidity or alkalinity (complying)
storage temp.   2-8°C



Paraformaldehyde was used in the preparation of azomethine ylide, required for the synthesis of amine-modifying single-walled carbon nanotubes. It was also used in the preparation of α-methylenechromanes, α-methylenequinoline and ortho-quinone methides.

General description

Buffered picric acid-paraformaldehyde fixative is suitable for use in electron microscopy and light-microscopic immunocytochemistry.

Price and Availability

Laboratory Gloves
Safety & Documentation

Safety Information

Signal word 
Precautionary statements 
UN 2213 4.1 / PGIII
WGK Germany 
Flash Point(F) 
158 °F
Flash Point(C) 
70 °C

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Protocols & Articles


Electronics and Self-Assembly with Single Molecules

Single molecule electronics is the endeavour of constructing electronic circuitry with single molecules as the fundamental building block. The concept has been addressed theoretically in the 1970s1 a...
Kasper Moth-Poulsen, Titoo Jain, Jakob KrygerSørensen, Thomas Bjørnholm
Material Matters 2009, 4.3, 80.
Keywords: Applications, Building blocks, Cycloadditions, Electronics, Help, Methods, Microscopy, Nanomaterials, Nanotechnology, Purification, Reductions, Semiconductor, Type

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