Hangzhou Wencheng Chemical Biotech Co., Ltd.

99.5% Tripropylene glycol
99.5% Tripropylene glycol
99.5% Tripropylene glycol

99.5% Tripropylene glycol

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  • Category

    Polyol Series

  • Describe

    Tripropylene glycol (TPG) is a colorless, odorless, low-volatility viscous liquid belonging to the polyol solvent class. It is mainly used in flavors and fragrances, cosmetics, coatings, inks, polyurethanes and other fields.

  • Cas No.

    24800-44-0

  • Purity

    99.5%

  • Synonym(s)

    TPG

Physical and chemical properties

  • 1. Chemical Identity
    • Chemical Name: Tripropylene glycol
    • IUPAC Name: A mixture including 2-(2-(2-Hydroxypropoxy)propoxy)propan-1-ol
    • Synonyms: TPG
    • CAS Number: 24800-44-0 (for the isomer mixture)
    • EC Number: 246-468-1
    • Molecular Formula: C9​H20​O4​
    • Molecular Weight: 192.25 g/mol
  • 2. Physical Properties
    • Appearance: Clear, colorless, viscous, hygroscopic liquid.
    • Odor: Practically odorless.
    • Melting Point: <-20 °C (<-4 °F)
    • Boiling Point: 267-273 °C (513-523 °F) at 1013 hPa
    • Density: 1.018 - 1.022 g/cm³ at 20 °C
    • Solubility:
    • In Water: Miscible (soluble in all proportions).
    • In Organic Solvents: Miscible with many common organic solvents.
    • Vapor Pressure: <0.01 hPa at 20 °C
    • Vapor Density: 6.6 (Air = 1)
    • Viscosity: ~57 mPa·s at 20 °C
  • 3. Chemical Properties and Stability
    • Stability: Stable under normal conditions. Hygroscopic (absorbs moisture from the air).
    • Incompatibilities: Incompatible with strong oxidizing agents and strong acids.
    • Hazardous Decomposition Products: Combustion may produce toxic fumes of carbon monoxide (CO) and carbon dioxide (CO2​).
  • 4. Other Key Data
    • Flash Point: 132 °C (270 °F) - Closed cup
    • Autoignition Temperature: 305 °C (581 °F)
    • Explosive Limits:
    • Lower Explosive Limit (LEL): Not determined
    • Upper Explosive Limit (UEL): Not determined
    • Refractive Index (n20/D): ~1.445
 

MSDS

99.5% Tripropylene glycol--MSDS     Download
 

Certificates Of Analysis

99.5% Tripropylene glycol--COA      Download
 

Application

1. Synthesize high molecular weight acrylic acid monomers, methacrylate monomers, etc. with acrylic acid, methacrylic acid, etc.

2. Tripropylene glycol has the characteristics of low toxicity, low vapor pressure, and medium viscosity. It is widely used as a solvent in photocurable formulations, such as UV printing inks, UV varnishes, paints, etc.

3. Lubricants and heat transfer fluids: used for mechanical lubrication or heat transfer systems in high temperature environments (such as industrial coolants).

4. Moisturizers and emollients: As hygroscopic ingredients, they help the skin retain moisture. They are commonly found in lotions, creams, and hair care products. Compared with propylene glycol, they have a larger molecular weight and lower irritation. They are more suitable for sensitive skin products in cosmetics.

5. Polyurethane raw materials: As a polyol component, they participate in the synthesis of flexible polyurethane foams, adhesives, etc.

6. Moisturizers for food and tobacco.

Safety Information

  • This information is a summary based on the Globally Harmonized System of Classification and Labelling of Chemicals (GHS).
    • 1. GHS Classification
      • This substance is not classified as hazardous according to the Globally Harmonized System (GHS).
    • 2. GHS Label Elements
      • Pictograms: No pictogram is required.
      • Signal Word: No signal word is required.
      • Hazard Statements: No hazard statements are required.
      • Precautionary Statements:
      • While not required, good industrial hygiene practices are recommended, such as:
        • P264: Wash hands thoroughly after handling.
        • P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
    • 3. Summary of Primary Hazards
      • Health Hazards: Tripropylene glycol has very low acute toxicity by oral, dermal, and inhalation routes. It is not considered to be a skin or eye irritant under GHS classification criteria, and is not a skin sensitizer. It is used in some consumer products like air fresheners and cosmetics.
      • Fire Hazards: Combustible liquid. It has a high flash point and is not considered a significant fire hazard under normal conditions, but it will burn if exposed to a strong ignition source and preheated.
      • Environmental Hazards: It is not classified as hazardous to the aquatic environment. It is readily biodegradable and has a low potential for bioaccumulation.

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