Glass-sealed n-Octadecane (Paraffin Wax, C18H38)

Discover phase change in the palm of your hand. This elegant desktop display features a glass-sealed ampule filled with high-purity n‑octadecane (C18H38), a paraffin with a precise melting point of about 28°C (82°F). At typical room temperature it appears as a white solid; gently warm the tube with your hands for a minute and watch it transition into a clear liquid—then cool it to see crystals reform. It’s a simple, mesmerizing demonstration of thermodynamics and latent heat.

What’s included

• One glass-sealed tube containing n‑octadecane
• A minimalist metal display stand

Why you’ll love it

• Interactive: Observe solid–liquid phase change without spills or refills
• Educational: Perfect for classrooms, makers, and science enthusiasts
• Decorative: A clean, modern conversation piece for any desk or shelf

Use notes

• Best viewed near room temperature (20–26°C). Hand warmth is usually enough to trigger melting.
• Do not heat above moderate warm-water temperatures. Handle the glass tube with care.

Shipping

• We ship worldwide and handle all import and logistics details. Just place your order and wait for delivery. Typical delivery time is 7–14 days.

Size

• The stand is 18 cm tall; the glass tube is 6 cm long and 1 cm in diameter.