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16033 Sigma-Aldrich

1,2-Propanediol

meets analytical specification of Ph. Eur., BP, USP, ≥99.5%

Synonym: 1,2-PDO, Propylene glycol

  • CAS Number 57-55-6

  • Linear Formula CH3CH(OH)CH2OH

  • Molecular Weight 76.09

  •  Beilstein Registry Number 1340498

  •  EC Number 200-338-0

  •  MDL number MFCD00064272

  •  PubChem Substance ID 57647543

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Properties

vapor density   2.62 (vs air)
vapor pressure   0.08 mmHg ( 20 °C)
InChI Key   DNIAPMSPPWPWGF-UHFFFAOYSA-N
assay   ≥99.5%
form   liquid
autoignition temp.   779 °F
quality   meets analytical specification of Ph. Eur., BP, USP
shelf life   24 mo.
expl. lim.   12.5 %
impurities   acidic reac. impurities, complies
  organic volatile impurities, complies (GC)
  oxidizing substances, complies
  reducing matter, complies
  residual solvents, complies
  ≤0.0005% heavy metals (as Pb)
  ≤0.002% free alkali (as NaOH)
  ≤0.003% free acid (as CH3COOH)
  ≤0.2% water (Karl Fischer)
ign. residue   ≤0.005% (as SO4)
refractive index   n20/D 1.431-1.433
  n20/D 1.432(lit.)
bp   187 °C(lit.)
mp   −60 °C(lit.)
density   1.036 g/mL at 25 °C(lit.)
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤50 mg/kg
suitability   complies for appearance of solution

Description

Packaging

bottled under inert gas

Price and Availability


Laboratory Gloves
Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
TY2000000
Flash Point(F) 
217.4 °F
Flash Point(C) 
103 °C
Protocols & Articles

Articles

GC Analysis of 1,2-Alkyldiol Enantiomers (O-Trifluoroacetyl Derivatives) on Astec® CHIRALDEX® G-TA

From our library of Articles, Sigma-Aldrich presents GC Analysis of 1,2-Alkyldiol Enantiomers (O-Trifluoroacetyl Derivatives) on Astec® CHIRALDEX® G-TA
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Purification

Peer-Reviewed Papers
15

References

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