1,3 Propanediol CAS 504-63-2
Introduction:
| INCI | CAS# | Molecular | M.W. |
| 1,3-Propanediol | 504-63-2 | C3H8O2 | 76.10 |
1,3-Propanediol (referred to as Propanediol hereafter),mainly used as a solvent. It can repair damaged wool scales in hair care products, make hair more smooth. Prevent hair irritable, add 5%. Also used as viscosity control agent. Pure 1,3-Propanediol has a pH close to 7 and even at concentrations higher than 70% there is no skin irritation or sensitization.
Propanediol increases hydration when used in hair and body products, and at 5%, performs better than Propylene glycol and Butylene glycol. When combined with Glycerin, Propanediol shows a synergistic effect that reduces the tackiness of Glycerin, while offering the benefits of increased levels of hydration. At levels up to 75%, it shows low potential to irritate or sensitize skin.
1,3-Propanediol (referred to as Propanediol hereafter) may boost the efficacy of preservatives. Propanediol is not considered as a preservative itself, but can act as booster in many preservative systems. Propanediol is an efficient booster expecially in Phenoxyethanol based formulations against bacteria ( both gram positive and negative) and yeasts. The use of Propanediol can reduce significantly the amount of preservatives needed in the formulation.
Specifications
| Content of 1,3-Propanediol（GC area%） | ≥99.8 |
| Color（Hazen/APHA） | ≤10 |
| Water（ppm） | ≤1000 |
| Melting point (℃) | -27 |
| boiling point (℃) | 210-211 |
| Relative density (water=1) (25℃) | 1.05 |
| Relative vapor density (atmosphere =1) | 2.6 |
| Saturated vapor pressure(kPa) (60℃) | 0.13 |
| Flashing point (℃) | 79 |
| Ignition temperature (℃) | 400 |
| Solubility | Soluble in water、ethyl alcohol、diethyl |
Package
25kg/pail
Period of validity
12month
Storage
under shady ,dry, and sealed conditions, fire prevention.
Polytrimethylene terephthalate（PTT), drug intermediate & New Antioxidant, chain extender in polyurethane
Cosmetics, solvent, antifreeze
| Product Name: | 1,3-Propanediol | |
| Properties | Specifications | Results |
| Content(wt﹪) | Min.99.80 | 99.80 |
| Water Content | Max.1000 ppm | 562 |
| APHA Color | Max.10 | 2.70 |
| Heavy Metals (wt﹪) | Max.0.001 | Pass |
