PROPANEDIOL- ▸ PTT polymer: Monomer for polytrimethylene terephthalate used in fibers, carpets, and textiles.
- ▸ Polyurethanes: Chain extender in thermoplastic polyurethanes.
- ▸ Solvent: Solvent for cleaning, degreasing, and product formulation.
- ▸ Functional fluids: Component of antifreeze and de-icing products.
- ▸ Engineering thermoplastics: Building block for films, nonwovens, and monofilaments.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Propanediol (1,3-propanediol, CAS 504-63-2) is a diol used mainly as a monomer for polytrimethylene terephthalate (PTT), which goes into fibers, carpets, textiles, films, and engineering thermoplastics. It also serves as a chain extender in thermoplastic polyurethanes and as a solvent. Additional uses include antifreeze and de-icing formulations.
Frequently Asked Questions
What is propanediol used for?
1,3-Propanediol (CAS 504-63-2) is used mainly as the monomer for polytrimethylene terephthalate (PTT), the polymer behind fibers, carpets, textiles, and films. It is also a chain extender in thermoplastic polyurethanes, a solvent for cleaning and formulation, and a component of antifreeze and de-icing fluids.
What is the difference between propanediol and propylene glycol?
Propanediol commonly refers to 1,3-propanediol (CAS 504-63-2), while propylene glycol is 1,2-propanediol (CAS 57-55-6). They share the formula C3H8O2 but differ in where the two hydroxyl groups sit on the carbon chain, which changes their reactivity and end uses. Confirm the CAS on the CoA when specifying.
Is propanediol water soluble?
Yes. 1,3-Propanediol is a diol that is miscible with water, which supports its use as a solvent and in waterborne antifreeze and de-icing formulations. See the SDS for full physical-property data.
What is the HS code for propanediol?
1,3-Propanediol is classified under HS 2905.39 (other diols). It does not carry a UN number for general transport in its standard form; confirm shipping classification on the current SDS for your concentration and destination.
What is the cost of bulk propanediol?
RawSource prices propanediol by volume and packaging (drums, IBC totes, or bulk) for manufacturers. There is no fixed list price; submit your target quantity and grade for a bulk quote, and a CoA and SDS are included with each shipment.