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Monument Chemical Propylene Glycol n-Butyl Ether (PnB)

Monument Chemical Propylene Glycol n-Butyl Ether (PnB) is a clear, colorless having a mild characteristic odor.

Chemical Name: Propylene Glycol N-Butyl Ether

CAS Number: 5131-66-8

Chemical Family: Diols, Ethers, Glycols, Propylene Glycols

Synonyms: 1-(n-Butoxy)propan-2-ol, 1-Butoxy-2-propanol, 1-Methyl-3-oxa-1-heptanol, 1,2-Propylene glycol 1-monobutyl ether, 2-Hydroxy-3-butoxypropane, 3-Butoxy-2-propanol, NSC 2211

    Knowde Enhanced TDS

    Identification & Functionality

    Base Chemicals Functions
    CAS No.
    5131-66-8
    EC No.
    225-878-4

    Applications & Uses

    Applicable Processes
    End Use Applications
    • Solvent.
    • Chemical intermediate.
    • Printing inks.
    • Paints.
    • Coatings.

    Properties

    Physical Form
    Empirical Formula
    C7H16O2
    Appearance
    Colorless
    Typical Properties
    ValueUnitsTest Method / Conditions
    Molecular Weight132.2g/mol
    Freezing Point-85°C
    Flash Point (Closed Cup)68.9°C
    Autoignition Temperature260°C
    Boiling Point (760mmHg)171°C
    Density (20°C)0.879kg/L
    Evaporation Rate (nBuAc = 1)0.09
    Vapor Pressure (25°C)1.1mmHg
    Solubility (In Water, 20°C)5.5%
    Refractive Index (25°C)1.42
    Viscosity (25°C)3.9cP
    Lower Flammability in Air1.1v/v%
    Surface Tension (25°C)27mN/m
    Upper Flammability (In Air)9v/v%
    Specific Heat (25°C)1.98J/g/°C
    Heat of Vaporization (Normal Boiling Point)320J/g
    Heat of Combustion (25°C)31.4kJ/g

    Safety & Health

    Health & Safety Information
    • Under current U.S. OSHA's Hazardous Communication Program Poly-Solv® PnB is classified as a combustible liquid, can cause eye and skin irritation. Keep the material away from heat sources, hot surfaces, open flames, and sparks. Use only in a well-ventilated area.
    • Observe good industrial hygiene practices and use appropriate Personal Protective Equipment.

    Storage & Handling

    Storage & Handling
    • Poly-Solv® PnB should be stored only in tightly closed, properly vented containers away from heat, sparks, open flame or strong oxidizing agents. Use only nonsparking tools. Containers should be grounded before beginning transfer. Electrical equipment should conform to national electric code. Handle empty containers carefully. Flammable combustible residue remains after emptying.
    • General industry practice is to store Poly-Solv® PnBP in carbon steel vessels. Storage in properly lined steel or stainless steel to avoid slight discoloration from mild steel is recommended. Avoid contact with air when storing for long periods of time. This product may absorb water if exposed to air.
    • Provided proper storage and handling precautions are taken, Poly-Solv® PnB manufactured and delivered by Monument Chemical is stable for at least 12 months from the date of manufacture. Poly-Solv® PnB that is subsequently repackaged, handled and/or delivered by third parties may have a different shelf life and may require third party shelf life studies. Product past the retest date should be evaluated to confirm that all specifications are within their limits before use.