Solvent, humectant, emulsifier, antifreeze, chemical intermediate
EINECS No
200-338-0
Properties
Colourless, odourless, and tasteless. Hygroscopic and miscible with water, acetone, and chloroform.
Structural Formula
CH3-CHOH-CH2OH
Ph Level
6.0 - 8.0 (100 g/l, H2O, 20 C)
CAS No
57-55-6
Physical Form
Liquid
Shape
Liquid
Application
Food, pharmaceutical, cosmetic, industrial, and chemical uses
Storage
Store in a tightly closed container in a dry, cool, and well-ventilated place
Product Type
Industrial
Appearance
Clear, colourless liquid
Grade
Technical/USP Grade
Density
1.036 Gram per cubic centimeter(g/cm3)
Poisonous
NO
Solubility
Miscible with water, alcohol, acetone, chloroform
Melting Point
-59 C
Molecular Formula
C3H8O2
Vapour Pressure
0.07 mmHg at 20 C
Critical Temperature
351 C
Viscosity
58.1 mPas at 20 C
Surface Tension
36.1 mN/m at 20 C
Auto Ignition Temperature
371 C
Flash Point
99 C (Closed Cup)
Boiling Point
187 C
Hazard Class
Non-Hazardous
Packaging
230 kg drum, 25 kg drum, IBC tank or as required
Propylene glycol Trade Information
Minimum Order Quantity
1 Liter
Delivery Time
1 Week
About Propylene glycol
Propylene glycol (PG) is a versatile pharmaceutical excipient used primarily for its ability to dissolve a wide range of substances and maintain moisture. Classified as a diol or double alcohol (C3H8O2), it is a clear, odorless, and viscous liquid that is miscible with water.
Key Functions as an Excipient
Solvent & Co-solvent: Used in oral, topical, and parenteral (injectable) formulations to dissolve poorly water-soluble drugs. It is common in medications like diazepam, lorazepam, and phenytoin.
Humectant: Prevents formulations, particularly creams and ointments, from drying out by attracting and retaining moisture.
Preservative: In concentrations of 1530%, it can act as an antimicrobial agent to prevent spoilage.
Stabilizer: Helps maintain the physical stability of emulsions and prevents solid particles from settling in suspensions.
Viscosity Modifier: Adjusts the consistency and flow properties of liquid or semi-solid products.
Exceptional Purity and Versatile Applications
Propylene glycol stands out for its high purity (>99.5%) and adaptability across industries. Used in food, pharmaceuticals, cosmetics, and industrial sectors, it acts as a solvent, humectant, emulsifier, antifreeze, and chemical intermediate, highlighting its indispensable role in various formulations and processes.
Safe Handling and Storage Guidelines
As a non-hazardous and non-poisonous substance, propylene glycol offers safety in handling. However, it is essential to store it in tightly closed containers in a cool, dry, and well-ventilated area. Proper storage ensures the product maintains its quality and extends its shelf life up to two years.
FAQ's of Propylene glycol:
Q: How should propylene glycol be stored for maximum shelf life?
A: Propylene glycol should be stored in a tightly sealed container, in a dry, cool, and well-ventilated area. This ensures both quality preservation and safety, allowing the product's shelf life to extend to two years from the date of manufacture.
Q: What are the primary uses of propylene glycol in industry and consumer products?
A: Propylene glycol is used as a solvent, humectant, emulsifier, antifreeze, and chemical intermediate. It is widely found in food, pharmaceuticals, cosmetics, and industrial applications due to its safe, versatile, and stable properties.
Q: When is propylene glycol recommended for pharmaceutical or food applications?
A: Propylene glycol is ideal in pharmaceutical and food manufacturing where purity, non-toxicity, and compatibility are required. Its technical and USP grades make it suitable in formulations demanding stringent safety and efficacy standards.
Q: Where can I obtain propylene glycol and in what packaging options?
A: Propylene glycol is available through distributors, manufacturers, suppliers, and traders across India. Packaging options include 230 kg and 25 kg drums, IBC tanks, or customized as per customer requirements.
Q: What are the benefits of using propylene glycol over other solvents?
A: Propylene glycol is non-hazardous, odourless, tasteless, and exhibits excellent miscibility with water, acetone, and chloroform. Its stable profile, safety in various applications, and versatility make it a preferred choice in formulating products across multiple industries.
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