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Product Data Sheet — 4-Methyl-1,3-Dioxolane

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4-Methyl-1,3-Dioxolane (CAS: 1072-47-5)

Common Names: Methyl Dioxolane, Propylene glycol methylene ether, Formaldehyde propylene acetal

A polar aprotic cyclic diether with active solvency - P-series for an even better tox profile. 4-Methyl-1,3-Dioxolane is a highly polar aprotic (no hydroxyl functionality) solvent, having low toxicity - it is a propylene glycol derivative. The moderate boiling point allows for controlled drying of coatings and inks. Novolyte offers high purity (99.0%, (99.3% typical), low peroxide (5ppm max), and low moisture (300ppm max). Higher purity and low moisture versions are available.

Physical Properties

Empirical Formula C4H8O2
Molecular Weight 88.1
Boiling Point (°C 760 mm Hg) 82-85
Freezing Point (°C) -
Specific Gravity (20°C) 0.983
Flash Point (°C, closed cup) -2
Refractive Index (20°C) 1.398

Appearance: Clear, colorless

Odor: Ethereal

Solubility at 25°C

  • In water: 5.5%
  • Water in: 8.0%

Process Solvent

  • For inks and dyes
  • For adhesives and coatings

Reaction solvent

  • At near pH 7
  • Acting as a polycarbonate and other polar polymer swelling agent

Features

  • Aprotic
  • 10C higher boiling point than 1,3-dioxane
  • Water soluble
  • High solvency characteristics
  • Powerful diluent
  • Friendly tox profile
  • Refer to MSDS for detailed handling and disposal information
  • Use with proper PPE and engineering controls