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16005 Aldrich

Paraformaldehyde

meets analytical specification of DAC, 95.0-100.5%

Synonym: Polyoxymethylene

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Properties

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

Description

Application

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

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.



Safety & Documentation

Safety Information

Signal word 
Danger
Precautionary statements 
RIDADR 
UN 2213 4.1 / PGIII
WGK Germany 
2
RTECS 
RV0540000
Flash Point(F) 
158 °F
Flash Point(C) 
70 °C
Protocols & Articles

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

Peer-Reviewed Papers
15

References

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