1,3-Propanediol
1,3-Propanediol is a high-performance polyol raw material with excellent moisturizing, solubility, and formulation compatibility. The product is stable, has a refreshing feel, and can be stably used in various systems, finding wide application in personal care, cosmetics, pharmaceuticals, and related industrial fields. In formulations, 1,3-Propanediol helps enhance moisturizing effects, improve the user experience, and strengthen the dispersion and stability of active ingredients, providing reliable functional support for the development of high-quality products.
Basic Introduction
INCI Name: Propylene Glycol
CAS Registry Number: 504-63-2
EINECS login number: 200-338-0
HS Code: 2905 320000
Molecular formula : C3H8O2
Molecular weight: 76.09
Synonyms: 1,3 - dihydroxypropane
Application areas
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Application areas
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Application Notes
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Food and beverage industry
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As a food additive, humectant, and solvent, it can enhance the texture of food and keep it moist.
It is widely used in food processing, such as in the production of candy, bread, and biscuits, and in the production of seasonings and flavorings.
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Industrial manufacturing
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As a coolant and antifreeze, it lowers the freezing point of the liquid and prevents the cooling system from freezing. It is commonly used in automobiles, industrial equipment, and air conditioning systems to ensure that the liquid can still flow under cold conditions.
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Pharmaceutical manufacturing
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As a carrier for drugs and vaccines, propylene glycol stabilizes and extends the shelf life of medications. In pharmaceutical processes, it serves as a solvent and diluent, and also plays a role in regulating temperature and humidity in pharmaceutical products.
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Daily chemical industry
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It possesses moisturizing and solvent properties, making cosmetics easier to apply and absorb. It can be added to skincare, cosmetic, and personal care products such as lotions, creams, and lipsticks.
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Packaging
ton containers, leather drums, tank trucks
Stability and storage conditions
Propylene glycol is hygroscopic and should be stored in a tightly closed container in a cool, dry place, away from direct sunlight. Keep away from open flames, heat sources, and oxidizers.
Product Compliance
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Indicator range
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GB29216
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CP
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USP
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EP
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Senses
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Colorless, transparent, viscous liquid
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Colorless, clear, viscous liquid
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Colorless, transparent, liquid
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Colorless, transparent, liquid
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Propylene glycol content
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≥99.5
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≥99.5
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Moisture, %
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≤0.2
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≤0.2
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≤0.2
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≤0.2
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Initial boiling point (°C)
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≥185
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Dry point (°C)
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≤189
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Burning residue, %
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≤0.007
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≤2.5mg
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≤3.5mg
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≤0.01
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Specific gravity (25/25℃)
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1.035-1.037
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1.035-1.037
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1.035-1.037
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1.035-1.037
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Sulfate, ppm
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≤60
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≤60
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Chloride, ppm
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≤70
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≤70
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acid value
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Through the experiment
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≤0.5-0.01 mol/L NaOH
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≤0.2-0.1 mol/L NaOH
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Through the experiment
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