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Propylene Glycol (MPG / PG) | USP & Industrial Grade | CAS 57-55-6
Overview
Propylene Glycol, often referred to as Mono Propylene Glycol (MPG), is a clear, colorless, viscous, and practically odorless liquid with a faintly sweet taste. It is highly hygroscopic and miscible with water, acetone, and chloroform. Recognized for its exceptionally low toxicity compared to Ethylene Glycol, it is widely utilized across both heavy industrial applications and strict human-contact sectors.
Product Description
Propylene Glycol (MPG / PG) | USP & Tech Grade
Product Overview
Propylene Glycol, often referred to as Mono Propylene Glycol (MPG), is a clear, colorless, viscous, and practically odorless liquid with a faintly sweet taste. It is highly hygroscopic and miscible with water, acetone, and chloroform. Recognized for its exceptionally low toxicity compared to Ethylene Glycol, it is widely utilized across both heavy industrial applications and strict human-contact sectors.
At Shandong Yinglang Chemical Co., Ltd., established in 2016, we supply both premium USP/EP Grade (pharmaceutical/food) and standard Technical/Industrial Grade Propylene Glycol. We maintain rigorous quality control to ensure ultra-high purity and provide highly efficient, secure ocean logistics for bulk global buyers.
Technical Specifications (COA)
Below are the typical specifications for our high-purity MPG:
| Purity (MPG Content) | ≥ 99.5% |
|---|---|
| Moisture / Water | ≤ 0.20% |
| Color (Pt-Co) | ≤ 10 |
| Specific Gravity (20/20°C) | 1.037 - 1.039 |
| Acidity (as Acetic Acid) | ≤ 0.002% |
Key Applications
- Unsaturated Polyester Resins (UPR): (Industrial Grade) The largest industrial consumer. MPG reacts with propylene oxide to create high-performance UPR used in fiberglass-reinforced plastics and boat building.
- Non-Toxic Antifreeze: (Industrial Grade) Acts as a safer, eco-friendly alternative to Ethylene Glycol in engine coolants and food-facility HVAC systems.
- Food & Flavors: (USP Grade) Used as a solvent for food colorings and flavorings, and as a humectant to retain moisture in baked goods.
- Cosmetics & Pharma: (USP Grade) A vital carrier in lotions, shampoos, topical drug formulations, and a primary base ingredient in vape juices (E-liquids).
Packaging & Bulk Shipping
As a 100% non-hazardous general cargo for sea freight, we offer versatile bulk packaging to optimize your procurement costs:
- 215 KG Galvanized Iron Drums or Food-Grade HDPE Drums.
- 1000 KG IBC Totes.
- 22 - 24 MT Flexitanks (Most cost-effective for Industrial Grade volume shipping).
✅ Safety & Handling Profile
Transport: Classified as Non-Dangerous Goods (General Cargo) for ocean transport. Completely safe for standard container shipping.
Health & Safety: Propylene Glycol is recognized as safe and fundamentally non-toxic (FDA GRAS status for USP grade). Store in a tightly closed container in a cool, dry, and well-ventilated area to prevent moisture absorption due to its hygroscopic nature.
Looking for USP or Tech Grade Propylene Glycol?
Contact us today for the latest FOB/CIF pricing and COA documents for both grades.
Request a Bulk Quote Email Sales Team
PACKING AND DELIVERY
Packing and delivery
We offer secure and compliant packaging for a wide range of chemical products, from laboratory bottles (100 mL, 250 mL, 500 mL) to customized bulk containers. All shipments follow international hazardous goods standards and include complete documentation such as COA and SDS. With reliable global logistics partners, we ensure safe, fast, and efficient delivery by air, sea, or land according to customer needs.
FAQ
Q1: What documents and certifications do you provide?
A Standard shipment includes COA (Certificate of Analysis) and MSDS (SDS). We also provide ISO 9001 certification and support third-party inspections like SGS or BV upon request.
Q2: Do you provide custom synthesis or formulation services?
A Yes. If you have specific purity requirements or a unique formulation, our R&D team can provide custom synthesis and adjust the stabilizers/inhibitors to meet your technical specifications.
Q3: What are your terms of payment?
A
For Orders ≤ $1,000: 100% in advance.
For Orders > $1,000: 30% T/T in advance, and the balance before shipment or against the copy of B/L. Irrevocable L/C at sight is also acceptable for bulk orders.
Q4: How long is your price valid?
A Chemical prices fluctuate due to the changes in raw material costs and exchange rates. Please contact our sales team for the latest real-time quotation.
Q5: What packaging and shipping ports are available?
A
We normally ship from Qingdao, Shanghai, or Ningbo.
Standard packaging includes 200kg Drums or 1000kg IBC Totes. We ensure strict safety compliance for both general and hazardous chemical cargoes.
Q6: It's my first time importing chemicals — can you help?
A Absolutely. Importing chemicals requires specific documentation. Our experienced logistics team will assist you with the entire process, including handling customs clearance documents and arranging the most suitable shipping method.