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16033 Sigma-Aldrich

1,2-Propanediol

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

Synonym: 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 24849863

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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

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

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
Peer-Reviewed Papers
15

References

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