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252549 Sigma-Aldrich

Formaldehyde solution

ACS reagent, 37 wt. % in H2O, contains 10-15% Methanol as stabilizer (to prevent polymerization)

Synonym: Formalin

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Properties

Related Categories Aldehydes, Building Blocks, C1 to C6, Carbonyl Compounds, Cell Biology,
grade   ACS reagent
vapor density   1.03 (vs air)
vapor pressure   52 mmHg ( 37 °C)
  52 mmHg ( 37 °C)
InChI Key   WSFSSNUMVMOOMR-UHFFFAOYSA-N
assay   36.5-38.0%
autoignition temp.   572 °F
contains   10-15% Methanol as stabilizer (to prevent polymerization)
concentration   37 wt. % in H2O
impurities   ≤0.006 meq/g Titr. acid
ign. residue   ≤0.005%
color   APHA: ≤10
refractive index   n20/D 1.3765
density   1.09 g/mL at 25 °C(lit.)
anion traces   chloride (Cl-): ≤5 ppm
  sulfate (SO42-): ≤0.002%
cation traces   Fe: ≤5 ppm
  heavy metals: ≤5 ppm (by ICP-OES)
suitability   suitable for manufacturing use (Laboratory chemicals)

Description

Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Packaging

1, 4 L in glass bottle

25, 100, 4×100, 500, 6×500 mL in glass bottle

Physical form

This product is a solution of approximately 37% by weight of formaldehyde gas in water.

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Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
RIDADR 
UN 2209 8 / PGIII
WGK Germany 
3
Flash Point(F) 
147.2 °F
Flash Point(C) 
64 °C

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles

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Peer-Reviewed Papers
15

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