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    Propylene Glycol

    Propylene glycol used as a humectant, preservative carrier, and processing aid in foods, cosmetics, pharmaceuticals, and other industrial applications.

    Products

    Chemical name: Propylene glycol; Propane-1,2-diol; 1,2-Propanediol

    CAS Number:57-55-6

    EINECS Number:200-338-0

    Molecular formula: C3H8O2

    Molecular weight:76.1

    Product Standard: GB/USP/BP

    Packaging:

    Net weight 215kg iron drum.

    Storage Condition: Kept in a light-proof,well-closed, dry and cool place.

    Shelf life: 2 years.

    Buying Guide:

    Propylene Glycol Buying Guide

    Mondstar offers a diverse range of chemical products and is your preferred supplier of food additives and ingredients, providing high-quality propylene glycol wholesale and export services. For more information, you can directly contact [email protected] or call +86-17303712627.

    Product Overview

    Propylene glycol PG is an organic compound with the chemical formula C3H8O2. Its European food additive number is E1520. The chemical structure of propylene glycol consists of a 3-carbon backbone with hydroxyl groups at each end, hence it is classified as a diol. Its systematic name is propane-1,2-diol, an alcohol derived from propylene. PG is easily soluble in water and many organic solvents. Propylene glycol has been widely used in food, pharmaceutical, veterinary, cosmetic and other applications.

    Specifications

    Item Standard Result
    Identification Colorless clear viscous liquid Colorless clear viscous liquid
    Appearance Passed Passed
    Assay % ≥99.80 99.91
    EG ppm ≤50 N.D.
    DEG ppm ≤50 N.D.
    Residue on Ignition mg ≤2.5 0.8
    Chloride w/% ≤0.007 <0.007
    Sulfate w/% ≤0.006 <0.006
    Heavy metals ppm ≤5 <5
    Specific Gravity(25℃/25℃) 1.035-1.037 1.036
    Acidity(0.1N NaOH) ml ≤0.05 0.01
    Moisture w/% ≤0.10 0.062
    Fe ppm ≤0.1 0.007
    Colouring(Pt-Co) Hazen ≤10 <10
    IBP ℃ ≥184 187
    DP ℃ ≤189 187
    The main application of Propylene Glycol
    • Propylene glycol in food functions as a humectant, carrier, and preservative, essential for maintaining moisture, texture, and consistency in baked goods, frozen desserts, dressings, and flavor extracts.
    • Propylene glycol in medicine is a key excipient for oral solutions, injections, ointments, and topical products, aiding in the improvement of solubility and stability.
    • Propylene glycol in skin care and personal care products, such as moisturizers, shampoos, deodorants, and makeup, serves as a humectant, emollient, and viscosity reducer.
    • Propylene glycol as an antifreeze and deicer in automotive and aircraft applications prevents freezing due to propylene glycol antifreeze low freezing point and high boiling point.
    • Propylene glycol in paints, adhesives, and liquid detergents is employed as a moisture stabilizer, carrier solvent, and consistency enhancer.
    • Propylene glycol in industrial applications is utilized as a heat transfer fluid and hydraulic fluid.

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