Product Parameters
Property |
Details |
Chemical Name |
1,3 - Propanediol / Trimethylene Glycol |
CAS Number |
504 - 63 - 2 |
Molecular Formula |
C3H8O2 |
Molecular Weight |
76.09 g/mol |
Appearance |
Colorless, viscous liquid |
Odor |
Slight, sweet odor |
Solubility |
Miscible with water, ethanol, and many organic solvents |
Boiling Point |
214 - 216 °C |
Melting Point |
- 27 °C |
1,3 - Propanediol/Trimethylene Glycol has the following uses:
- Polymer Industry: It is mainly used in the production of polyesters and polyurethanes. In the polyester industry, it is used as a monomer to produce polytrimethylene terephthalate (PTT), a high - performance polyester fiber. PTT fibers have excellent elasticity, stain resistance, and low moisture absorption, which are widely used in textile and carpet industries. In the polyurethane industry, it is used as a chain extender or cross - linker to improve the performance of polyurethane products, such as increasing the flexibility and durability of polyurethane foams and elastomers.
- Cosmetics and Personal Care: It is used in cosmetics and personal care products as a humectant and solvent. As a humectant, it can help retain moisture in the skin and hair, preventing dryness and improving the smoothness and softness of the skin and hair. It is also used as a solvent to dissolve other ingredients in cosmetic formulations, such as essential oils and fragrances, helping to evenly distribute these ingredients in the product.
- Food and Beverage Industry: It is approved for use as a food additive in some countries. It can be used as a humectant, plasticizer, and solvent in food products. In baked goods, it helps to retain moisture, prolonging the shelf life and improving the texture of the products. It is also used in some low - calorie or sugar - free food products as a substitute for sugar alcohols, providing a sweet taste and improving the mouthfeel of the products.
- Other Applications: It is also used in the production of antifreeze agents, lubricants, and inks. In antifreeze agents, it can lower the freezing point of water, preventing the formation of ice in cooling systems. In lubricants, it can improve the lubricating properties and reduce friction between moving parts. In inks, it is used as a solvent and humectant, helping to improve the flowability and drying properties of the ink.
Describe
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Chongqing Yuhan Technology Co., Ltd. -- Bridging High-Quality Chemicals to Global Markets
About Us
Since 2017, Chongqing Yuhan Technology has grown from a local supplier to a leading international trader of chemical raw materials and reagents. We serve diverse industries including electric power, metallurgy, agriculture, pharmaceuticals, textiles, plastics, and research institutions, with a global client base.
Our Business Scope
We offer a wide range of chemical products, specializing in high-purity acids, perovskite materials, and hazardous chemicals. Our focus on bulk and high-performance materials ensures we meet the unique needs of our clients with customized solutions.
Our Strengths
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Diverse Product Lines: Comprehensive range of chemicals for one-stop procurement.
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Market Competitiveness: Strong market position with long-term partnerships.
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Looking Forward
We are committed to continuous improvement, offering more professional and efficient solutions. We aim to expand our international presence and become the preferred partner for high-quality chemical raw materials and reagents globally.
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Industry Reputation: Recognized for professionalism and reliability.
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Risk Control: Effective management of safety and environmental risks.
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Partner Trust: Trusted for securing favorable terms and prices.








Q1: Can I get some samples?
A: Yes, sure. Usually, we can provide free samples for less than 5 kg, but the customer needs to pay for the shipping.
Q2: What is your MOQ?
A: The minimum order quantity varies for different products, with most requiring a minimum of 1 ton. However, we can accommodate smaller quantities, such as 100kg, with a 100% sample charge.
Q3: How to confirm product quality before placing an order?
A: You can obtain free samples of the products, but you need to cover the shipping fee or arrange for the samples to be sent to us by express. Additionally, you can provide us with your product specifications and requirements, and we will manufacture the products accordingly.
Q4: Is there a discount for bulk purchases? How much is the discount?
A: Yes, we offer discounts for bulk purchases. The discount is determined by evaluating factors such as purchase volume, product type, and cooperation period. Generally, the larger the purchase volume, the greater the discount.
Q5: How do I start paying?
A: Payment can be made by wire transfer, Western Union, PayPal, Visa, Mastercard, T/T, Apple Pay, Google Pay, etc.
Q6: What is the shipping time?
A: We ship the products out within 1-3 days and provide a tracking number. Shipping time varies by country.
Q7: What qualifications and certifications does the company have? Such as ISO certification, etc.
A: Our supply manufacturers hold several authoritative certifications to ensure our products and services meet international standards and industry regulations. This includes the ISO 9001 Quality Management System certification, which indicates we have reached internationally recognized levels in product quality control, production process management, and continuous improvement, providing stable and reliable quality assurance for customers.
Q8: How about the after-sale service of products?
A: After purchasing products from our company, you will be supported by our professional technical team and after-sales team, who will help solve any problems you may encounter.