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33220 Sigma-Aldrich

Formaldehyde solution

puriss. p.a., ACS reagent, ≥36.5%

Synonym: Formalin

  • CAS Number 50-00-0

  • Linear Formula HCHO

  • Molecular Weight 30.03

  •  Beilstein Registry Number 1209228

  •  MDL number MFCD00003274

  •  PubChem Substance ID 57648778

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Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, Derivatization Reagents, Derivatization Reagents TLC,
grade   ACS reagent
vapor density   1.03 (vs air)
vapor pressure   52 mmHg ( 37 °C)
InChI Key   WSFSSNUMVMOOMR-UHFFFAOYSA-N
grade   puriss. p.a.
assay   ≥36.5%
autoignition temp.   572 °F
contains   ~10% methanol as stabilizer
impurities   ≤0.0002% heavy metals (as Pb)
ign. residue   ≤0.005% (as SO4)
density   1.09 g/mL at 25 °C(lit.)
anion traces   chloride (Cl-): ≤1 mg/kg
  sulfate (SO42-): ≤20 mg/kg
cation traces   Fe: ≤1 mg/kg

Description

Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

Price and Availability

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

Protocols & Articles
Peer-Reviewed Papers
15

References

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