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251364 Sigma-Aldrich

Formic acid

ACS reagent, ≥96.0%

  • CAS Number 64-18-6

  • Linear Formula HCOOH

  • Molecular Weight 46.03

  •  Beilstein Registry Number 1209246

  •  EC Number 200-579-1

  •  MDL number MFCD00003297

  •  PubChem Substance ID 24855128

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Properties

Related Categories Acids, Acids & Bases, Chemical Synthesis, Organic Acids, Synthetic Reagents More...
grade   ACS reagent
vapor density   1.6 (vs air)
vapor pressure   44.8 mmHg ( 20 °C)
InChI Key   BDAGIHXWWSANSR-UHFFFAOYSA-N
assay   ≥96.0%
autoignition temp.   1004 °F
expl. lim.   57 %
dilution test   passes test
impurities   ≤0.4% Acetic acid
evapn. residue   ≤0.003%
color   APHA: ≤15
refractive index   n20/D 1.370(lit.)
bp   100-101 °C(lit.)
mp   8.2-8.4 °C (lit.)
density   1.22 g/mL at 25 °C(lit.)
anion traces   chloride (Cl-): ≤0.001%
  sulfate (SO42-): ≤0.003%
  sulfite (SO32-): passes test
cation traces   Fe: ≤0.001%
  NH4+: ≤0.005%
  heavy metals (as Pb): ≤0.001%

Description

Application

Versatile reagent used for formylation, hydrolysis, and cyclocondensations.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Supplemental Hazard Statements 
Corrosive to the respiratory tract.
RIDADR 
UN 1779 3(8) / PGII
WGK Germany 
1
RTECS 
LQ4900000
Flash Point(F) 
120.2 °F
Flash Point(C) 
49 °C

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Peer-Reviewed Papers
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