1,3-Propanediol
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- Contact: 陳女士
- Tel:18251160758
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Suzhou High-Quality 1,3-Propanediol Versatile Chemical Raw Material
1,3-Propanediol is an organic compound, a colorless, odorless liquid with hygroscopic and dissolving properties. It contains two hydroxyl (hydroxy) functional groups located at the 1st and 3rd carbon atoms of the molecule, hence its name. It has numerous applications in industry.
Basic Introduction
INCI Name: Propylene Glycol
CAS Registry Number: 57-55-6
EINECS Registry Number: 200-338-0
HS Code: 2905320000
Molecular Formula: C3H8O2
Molecular Weight: 76.09
Synonyms: 1,3-Dihydroxypropane
Application Fields
Application Field | Application Description |
Food and Beverage Industry | Used as a food additive, humectant, and solvent to enhance the taste and maintain moisture in food products. Widely used in food processing, such as in the production of candies, bread, biscuits, etc., and in the making of condiments and flavorings. |
Industrial Manufacturing | Used as a coolant and antifreeze to lower the freezing point of liquids and prevent freezing in cooling systems. Commonly used in automobiles, industrial equipment, and air conditioning systems to ensure fluid flow under cold conditions. |
Pharmaceutical Manufacturing | Used as a carrier for drugs and vaccines to stabilize and extend the shelf life of medications. In pharmaceutical processes, propylene glycol serves as a solvent and diluent, while also regulating temperature and humidity in medical products. |
Daily Chemical Industry | With its moisturizing and solvent properties, it makes cosmetics easier to apply and absorb. Added to skincare products, cosmetics, and personal care items such as lotions, creams, lipsticks, etc. |
Packaging Methods
Ton barrels, drums, tank trucks
Stability and Storage Conditions
Propylene glycol is hygroscopic and should be stored in sealed containers in a cool, dry place, avoiding direct sunlight. Keep away from open flames, heat sources, and oxidizing agents.
Product Compliance
Parameter Range | GB 29216 | CP | USP | EP |
Appearance | Colorless transparent viscous liquid | Colorless clear viscous liquid | Colorless, transparent, liquid | Colorless, transparent, liquid |
Propylene Glycol Content | ≥99.5 | / | ≥99.5 | / |
Moisture, % | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 |
Initial Boiling Point (°C) | ≥185 | / | / | / |
Dry Point (°C) | ≤189 | / | / | / |
Residue on Ignition, % | ≤0.007 | ≤2.5mg | ≤3.5mg | ≤0.01 |
Specific Gravity (25/25°C) | 1.035-1.037 | 1.035-1.037 | 1.035-1.037 | 1.035-1.037 |
Chlorides, ppm | / | ≤70 | ≤70 | / |
Acid Value | Passes test | ≤0.5 0.01mol/LNaOH | ≤0.2 0.1mol/LNaOH | Passes test |
| Industry Category: | Chemicals/Coating Solvents/Ethylene Glycols |
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