1,3-Propanediol CAS#504-63-2
Key Raw Material for PTT Production – 1,3-Propanediol (PDO) is essential for producing polytrimethylene terephthalate, a next-generation polyester.
Excellent Chemical Stability – PTT derived from PDO combines the chemical stability of traditional PET, ensuring durability and long-term performance.
High Resilience – Fabrics made from PTT exhibit superior elasticity and shape retention, enhancing textile quality.
Anti-Pollution Properties – PTT resists stains and environmental pollutants, making it suitable for advanced textile applications.
1,3-Propanediol (PDO) is primarily utilized to manufacture a new kind of polyester, polytrimethylene terephthalate (PTT). PTT combines the chemical stability of polyethylene terephthalate (PET) with excellent resilience and anti-pollution properties, offering promising applications in the textile industry.
1,3-Propanediol Chemical Properties
Melting point | -27 °C (lit.) |
Boiling point | 214 °C/760 mmHg (lit.) |
Density | 1.053 g/mL at 25 °C (lit.) |
Vapor pressure | 0.8 mm Hg ( 20 °C) |
Refractive index | n20/D 1.440(lit.) |
FEMA | 4753 | 1,3-PROPANEDIOL |
Fp | >230 °F |
Storage temp | Store below +30°C. |
Solubility | H2O: soluble |
Pka | 14.46±0.10(Predicted) |
Form | Oily Liquid |
Color | Clear |
PH | 4.5-7.0 (100g/l, H2O, 20℃) |
Explosive limit | 2.5%(V) |
Water Solubility | 100 g/L |
Merck | 14,9714 |
BRN | 969155 |
Dielectric constant | 35.0（20℃） |
InChIKey | YPFDHNVEDLHUCE-UHFFFAOYSA-N |
LogP | -0.71 at 20℃ |
CAS DataBase Reference | 504-63-2(CAS DataBase Reference) |
NIST Chemistry Reference | 1,3-Propanediol(504-63-2) |
EPA Substance Registry System | 1,3-Propanediol (504-63-2) |
Safety Information
Hazard Codes | Xi |
Risk Statements | 38 |
Safety Statements | 23-24/25 |
WGK Germany | 1 |
RTECS | TY2010000 |
Autoignition Temperature | 405 °C |
TSCA | Yes |
HS Code | 29053980 |
Hazardous Substances Data | 504-63-2(Hazardous Substances Data) |
Toxicity | LD50 orally in Rabbit: 15670 mg/kg LD50 dermal Rabbit > 20000 mg/kg |
Product Application of 1,3-Propanediol (CAS#504-63-2)
Used in organic synthesis, including the production of various pharmaceuticals, new antioxidants, and antifreeze. Acts as a solvent and a standard in gas chromatography analysis. It is also employed in the synthesis of new polyester PTT, pharmaceutical intermediates, and other organic compounds.
