Propanediol 1,3

INCI: Propanediol
CAS: 504-63-2

Propanediol 1,3 is a natural organic compound derived from corn or beet sugar with the formula CH2(CH2OH)2. It is a colorless viscous liquid that is miscible (dissolvable) with water. A good natural alternative to propylene glycol, it’s used as a humectant, hair & skin conditioner, preservative booster, emollient, and solvent. It can increase the effectiveness of other ingredients. It provides a light, non-sticky, slightly dry skin feel.
Propanediol is a considered a safe, well-tolerated ingredient, not likely to cause sensitivity.

Benefits:
Light, non-sticky skin feel
Green substitute for propylene glycol from a renewable resource
Viscosity enhancer
Clarity enhancer for surfactant systems
Increased freeze/thaw and heat stability
Low potential to irritate or sensitize skin
Good solvent for hard to dissolve ingredients as well as botanical extracts
Boosts efficacy of preservatives Hygroscopic, hydrates skin and hair well
Usage 1-20%, 1-3% most common, safe in leave-on products at concentrations of up to 39.9%

Typical Properties:
Appearance: Clear, colorless liquid
Odor: Sweet
Solubilty: Water
Density: g/ml (20˚C): 1.053
Viscosity: cP (20˚C): 52
pH: Neutral
Melting point: -24.6˚C (-12.3˚F)
Boiling point: 214˚C (417˚F)
Flashpoint: 129˚C
Incompatibilities: Incompatible with strong acids and oxidizing ingredients

PHYSICAL PROPERTIES
1,3-propanediol, PDO, is a non-flammable, low toxicity liquid that can be easily transported.
It is miscible with water, alcohols and ethers.

CAS Registry Number 504-63-2
Molecular Formula C3H8O2
Molecular Weight 76.10
Boiling Point 214.40oC (417.9oF) at 760mm Hg
103.0oC (217.4oF) at 10mm Hg
Melting Point-26.7oC (-16.1oF)
Density (20oC) 1.0526 g cm3
Viscosity (20oC) 52. cp
Surface Tension (20oC) 46.2 Dyne cm-1
Solubility in Water Complete
Flash Point ASTM D-92 129˚C / 265˚F
Store in a sealed container, in a moderate temperature (32 – 122˚F) and in a dry place.
Shelf Life: 2 years from manufacture date

Country of Origin: USA