Propylene Glycol Solvent
- ZhongShi
- Liaoning, China
- 7~10 days
- 20,000 tons / year
1. Our monoglyceride glycol solution is pure enough to meet industrial, pharmaceutical, and food grade requirements. With an impressive purity level of ≥99.5%
2. Moisture retention is one of our five-gallon glycol's strengths as well is its low volatility; these make it a great ingredient for both, personal care and the food/pharmaceutical sectors.
3. Unlike some suppliers that produce to order, we maintain a 100-ton stock of propylene glycol coolant to meet urgent procurement and long-term stable supply needs.
The food, pharmaceutical, cosmetics, and e-cigarette industries have high requirements for the purity, moisture content, and impurity content of propylene glycol. Fluctuations in purity, moisture content, or color between different batches can easily lead to product turbidity, inconsistent color, or decreased formulation stability. This requires a change of formula during the manufacturing process; worst case scenario you have to start from scratch which is definitely not cost-effective and a lot of man hours are lost during the delay.
We provide propylene glycol products complying with standards HG/T 4634-2023 and GB 1886.161 and relevant industry standards with general purity of≥99.5%. We strictly control moisture, color, and key impurities, achieving batch consistency of over 99.9%. Leveraging our annual supply capacity of 20,000 tons and a 100-ton standing inventory, we support orders starting from 1 ton. For regular orders, shipping is done within 7 working days so that customers can minimize the risks involved in making formula adjustments and rework caused by raw material fluctuations. In addition, since the company gets regular supplies, there's no chance of production getting interrupted in case of a stockout problem which makes production planning consistent and procurement stress-free.
Appearance | Colorless, transparent liquid |
Odor | No distinct unpleasant odor |
Propylene glycol content | ≥99.5% |
Density (20°C) | Approx. 1.036 g/cm³ |
Boiling point | 188.2°C |
Melting point | -59°C |
Flash point | 99°C (closed cup) |
Water solubility | Completely miscible with water |
Viscosity (20°C) | Approx. 58 mPa·s |
Propylene glycol content | ≥99.5% |
Water content | ≤0.20% |
Color (Pt-Co) | ≤10 |
Acidity | Complies with relevant standards |
Ash content | ≤0.01% |
Appearance | Colorless, transparent, and free from mechanical impurities |
Molecular Formula | C3H8O2 |
Molecular Weight | 76.10 g/mol |
HS Code | 29053200 |
Industrial Grade Standard | HG/T 4634-2023 |
Food Grade Standard | GB 1886.161 |
Pharmaceutical Grade Standard | Chinese Pharmacopoeia, USP-NF |
Hazard Class | Combustible liquid; not classified as a Class 3 flammable hazardous chemical. |
Customer Case
A food additive manufacturer, when producing flavorings and liquid seasonings, experienced significant fluctuations in raw material purity, leading to unstable product transparency and frequent formula adjustments between different batches, impacting production efficiency.
After adopting our propylene glycol, product purity stabilized at ≥99.5%, with each batch providing a Certificate of Analysis (COA) and quality inspection report. Formula stability significantly improved, the number of formulation adjustments during production decreased, and product consistency was improved. The client was very satisfied with our propylene glycol products and reached a long-term cooperation agreement with us.
Upstream Laboratory and Technical Support
To meet the quality and stability requirements of propylene glycol antifreeze in the food, pharmaceutical, daily chemical, and industrial manufacturing industries, we have established a comprehensive quality testing system relying on upstream cooperative production bases and a CNAS-accredited laboratory. The laboratory is equipped with nuclear magnetic resonance (NMR), gas chromatography-mass spectrometry (GC-MS), SmartLab X-ray diffractometer, and more than 30 other high-end analytical instruments, enabling precise testing of propylene glycol purity, moisture, color, acidity, diethylene glycol (DEG), and other key impurities to ensure that the product meets relevant industrial, food, and pharmaceutical grade standards. Simultaneously, the laboratory has over 300 sets of catalyst evaluation and distillation experimental equipment, which can continuously verify product stability and key quality indicators. Through dual quality management of "factory testing + outbound re-inspection," we strictly control each batch of products. Each batch of propylene glycol comes with a Certificate of Authorization (COA), MSDS, and related technical documentation, ensuring product quality traceability and providing reliable raw material support for customers' formulation development, quality audits, and continuous production.
Why Choose Us?
Liaoyang Zhongshi Chemical Co., Ltd., established in 2012, has over 15 years of experience in chemical solvent supply chain services. As for sourcing, we are long-term partners with CNPC, Sinopec, and CNOOC. We are also tightly integrated with three ISO-certified manufacturing facilities and we have an annual supply capacity of 20,000 tons. We maintain a 100-ton inventory and support orders starting from 1 ton, with regular orders delivered within 7 days. In terms of quality control, our products originate from factories certified by ISO 9001/14001/45001. Relying on a CNAS-accredited laboratory, we implement dual quality control: "factory inspection + outbound re-inspection," achieving batch consistency of over 99.9%. We provide complete COA, MSDS, and full-process traceability information. In fact we've exported our products into more than two dozen countries and offered a selection of packaging formats like drums, IBCs, and ISO Tanks. Sample products are ready within 24 hours after you request, and the product is available at you in only 7 working days. Apart from that, we can issue full packaging certificates for dangerous goods, customs declarations, certificates of origin, and SGS reports for you all together which allows the goods easily pass the customs without any problem.
Certificate Numbers: ZM034125Q43615R0L, ZM034125E43616R0L, ZM034125S43617R0L
Statement: The above certifications are held by our long-term production partners. In view of being a supply chain service provider, the main responsibilities assigned to us were product quality verification, logistics coordination, and provision of international trade services.
FAQ
Q1: What grades of bulk propylene glycol do you offer?
A: We offer industrial, food, and pharmaceutical grades of propylene glycol to meet the needs of different application industries.
Q2: What is the minimum order quantity for propylene glycol?
A: We support orders starting from 1 ton, accommodating trial orders and long-term bulk purchases.
Q3: What is the purity of the product?
A: The standard purity is ≥99.5%. Specific indicators can be provided with corresponding COA based on different grades.
Q4: Do you provide COA and MSDS?
A: Yes, COA, MSDS, and technical data are provided for each batch of products.
Q5: Is propylene glycol a hazardous chemical?
A: Propylene glycol is a flammable liquid, but it is not classified as a Class 3 flammable hazardous chemical. It does not have a UN transport number, and logistics and transportation requirements are relatively simplified.
Q6: What packaging methods are supported?
A: We support various packaging and transportation solutions, including iron drums, IBC containers, ISO tanks, and tank trucks.
Q7: What is the delivery time?
A: Regularly stocked products can generally be shipped within 7 working days. Long-term cooperative customers can prepare goods in advance according to their procurement plans.
