Galinstan Liquid Metal Alloy

PHYSICAL & CHEMICAL PROPERTIES

• Appearance: Bright, silver metallic liquid
• Melting Point: –19 °C (approx.)
• Boiling Point: >1300 °C
• Density (20 °C): ~6.44 g/cm³
• Viscosity (20 °C): ~0.0024 Pa·s
• Thermal Conductivity: ~16.5 W/m·K
• Electrical Conductivity: ~3.4 × 10⁶ S/m
• Surface Tension: 0.53 – 0.72 N/m (20 °C)
• Specific Heat Capacity: ~296 J/kg·K
• Vapor Pressure: <10⁻⁸ Torr at 500 °C
• Solubility: Insoluble in water and most organic solvents

STORAGE & HANDLING

• Store in tightly sealed glass or polymer containers.
• Avoid prolonged contact with light metals.
• Use clean, dry tools made of glass, PTFE, HDPE, or high-grade stainless steel.
• No refrigeration required (stable at room temperature).
• Prevent contamination with dust or reactive metals.

TYPICAL APPLICATIONS

• Clinical thermometers (mercury replacement)
• Heat-transfer fluids & thermal interface materials
• LED cooling modules
• Semiconductor and power device cooling
• Flexible and stretchable electronics
• Soft robotics actuation systems
• Microfluidics & lab-on-chip devices
• Conductive inks and printed electronics

MATERIALS TO AVOID

• Aluminum (strong attack)
• Copper, zinc, tin, lead (amalgam-like interaction)
• Strong oxidizers and acids
• Halogens

PACKAGING

• Supplied in glass bottles, polymer containers, sealed vials or Argon filled Bottles.
• Standard pack sizes: 10 g, 50 g, 100 g, 250 g, 500 g, 1 kg.

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