Liquid Metal Alloy - (Gallium, Indium, Tin)
Starting at: $25.00
Liquid Metal Alloy
metal alloy: Ga, In, Sn
( liquid )
This absolutely amazing metal is liquid at room temperature. Its melting temperature is 51°F!
It is an alloy of Gallium, Indium and Tin. We cannot call this 'Galinstan' because that is a trademark of another company - but this alloy is very similar to it and its properties. Unlike toxic Mercury, this liquid metal alloy is much safer to use.
It is being considered for use as a coolant in fusion reactors and other cutting edge physics applications and experiments. It does not exhibit the high surface tension of Mercury, so it does not 'bead up' like Mercury does. The surface tension of this alloy is very low. Because of this, it 'wets' glass and similar materials. It will form a mirror just by pouring some on glass, and is used in liquid metal telescopes. A fascinating material to experiment with.
We have a large amount of this material and can fill any need you have for it.
Supplied in stick-resistant HDPE bottles. Available in 10 gram, 20 gram, 50 gram, 100 gram and 1 Kg quantities.
Select container size below.
MSDS ( Material Safety Data Sheet )
Shipping Restriction (info)USA Only
Hazmat Fee (info)No
Signature Required (info)No
Quantity Restriction (info)No
Add to Cart:
Shipping Weight: 0.2lbs
10 grams ( $25.00 )
20 grams ( $45.00 )
50 grams ( $100.00 )
100 grams ( $185.00 )
1 Kg ( $1,600.00 ) (+2lbs)
Galinstan metal alloy and other liquid metals Galinstan is a silvery liquid eutectic mixture of gallium, indium and tin, made by Geratherm. It has a melting point of Tm=−20°C, Tb>1300 ºC,ρ=6440 kg/m3 , sound speed 2950 m/s, viscosity 0.0024 Pa∙s at 20 ºC.
They are much more viscous than Hg. In 2003, ¼ of silvery thermometers use galinstan instead of mercury. Any alloy containing gallium in a concentration of 65-95 wt.-%, indium in a concentration of 5-22 wt.-% and tin in a concentration of 0-11 wt.-%, can be used for thermometers, but ample margin must be allowed to avoid shatter by freezing; e.g. Tm<−10°C.
There can be other liquid metals at room temperature, as Na-K 22/78%wt eutectic alloy, with Tm=-12.6 ºC, Tb=785 ºC, ρL=866 kg/m3 at 20 ºC (at 100 ºC, ρL=855 kg/m3 , αL=340∙10-6 1/K, cL=936 J/(kg∙K), kL=23 W/(m∙K), µL=505∙10-6 Pa∙s, σL=115∙10-3 N/m and σele=2.5∙106 S/m, i.e. 4% that of Cu). It is used for high-temperature heat-transfer fluid, catalyst, reagent in petrochemical processing, electricallyactivated hydraulic fluid. It is a silver-coloured liquid metal, odourless and corrosive. It reacts violently with water, liberating and igniting flammable hydrogen gas, perhaps explosively.
After exposure to air, may form yellow potassium superoxide which reacts violently and explosively with organics. It must be stored in a dry N2 or Ar atmosphere, or better under oil.
Non-metal liquid thermometers (spirit thermometers) There are several kinds of non-mercury thermometers, but their usefulness is limited by the temperature range allowed, i.e. it should not freeze or vaporise at normal temperatures (−10 ºC..110 ºC). Possible working liquids are:
• Red-dyed: alcohol, toluene, pentane, xylene, kerosene (some 1 g of liquid plus <0.03 g of aniline dye). • Blue-dyed: isoamyl benzoate (pale-yellow, C12H16O2, M=0.192 kg/mol, ρ=990 kg/m3 , Tm=??, Tb=261 ºC, Tflash=95 ºC, biodegradable).
• Dark-green-dyed: monoazo-anthroquinone dissolved in some natural oil and dyed. Occasionally, the fluid in spirit thermometers will separate during storage and/or shipping, but this is a correctable problem. The two methods described below can be used. Remember to wear hand and eye protection when you perform either of these correction procedures.
• Heating Method: Holding the thermometer in an upright position and away from your face, heat it suspended in warming liquid or in hot air from a hair dryer (never from a flame!) just until the separated portion of the column enters the expansion chamber at the top of the thermometer (some 130 ºC).
Be very careful and stop heating as soon as the fluid enters the expansion chambers. Over-filling the expansion chamber will break the thermometer. Now, while keeping the thermometer in an upright position, tap it gently against the surface of a rubber stopper. This should allow the gas separating the column to rise above the column. Allow the thermometer to cool slowly and store it in an upright position.
• Cooling Method: Keeping the thermometer upright, place only the thermometer bulb in a solution of shaved ice and salt or dry ice and alcohol. Allow the liquid column to retreat into the bulb, and then swing the thermometer in an arc. This should release the trapped gas and permit it to escape above the column.
Allow the thermometer to slowly return to room temperature and store it in an upright position.
Liquid metal pump a breakthrough for micro-fluidics
RMIT University researchers in Melbourne, Australia, have developed the world's first liquid metal enabled pump, a revolutionary new micro-scale device with no mechanical parts.
The unique design will enable micro-fluidics and lab-on-a-chip technology to finally realise their potential, with applications ranging from biomedicine to biofuels.
The research has been published this week in Proceedings of the National Academy of Sciences (PNAS).
Lead investigator Dr Khashayar Khoshmanesh, a Research Fellow in the Centre for Advanced Electronics and Sensors at RMIT, said currently there was no easy way to drive liquid around a fluidic chip in micro-fabricated systems.
"Lab-on-a-chip systems hold great promise for applications such as biosensing and blood analysis but they currently rely on cumbersome, large-scale external pumps, which significantly limit design possibilities," he said.
"Our unique pump enabled by a single droplet of liquid metal can be easily integrated into a micro device, has no mechanical parts and is both energy efficient and easy to produce or replace.
"Just as integrated micro-electronics has revolutionised the way that we process information – enabling the development of computers and smart phones – integrated micro-fluidics has the potential to revolutionise the way we process chemicals and manipulate bio-particles at the micro-scale.
"This innovation shows that micro- and nano-scale pumping can be accomplished with a simple system – a crucial advance for the field of micro-fluidics."
The design uses droplets of Galinstan – a non-toxic liquid metal alloy comprised of gallium, indium and tin – as the core of a pumping system to induce flows of liquid in looped channels.
When the alloy is activated by applying a voltage, the charge distribution along the surface is altered. This propels the surrounding liquid without moving the Galinstan droplet through the loop, using a process called "continuous electrowetting".
The pump is highly controllable, with the flow rate adjusted simply by altering the frequency, magnitude and waveform of the applied signal. The flow direction can also be readily reversed by reversing the polarity of the applied voltage.
More information: Shi-Yang Tang, Khashayar Khoshmanesh, Vijay Sivan, Phred Petersen, Anthony P. O'Mullane, Derek Abbott, Arnan Mitchell, and Kourosh Kalantar-zadeh. "Liquid metal enabled pump." PNAS 2014 ; published ahead of print February 18, 2014, DOI: 10.1073/pnas.1319878111
Journal information: Proceedings of the National Academy of Sciences
A Gallium-Based Magnetocaloric Liquid Metal Ferrofluid
Isabela A. de Castro†, Adam F. Chrimes†, Ali Zavabeti†, Kyle J. Berean†, Benjamin J. Carey†, Jincheng Zhuang‡, Yi Du‡ , Shi X. Dou‡, Kiyonori Suzuki§, Robert A. Shanks∥ , Reece Nixon-Luke⊥, Gary Bryant⊥, Khashayar Khoshmanesh†, Kourosh Kalantar-zadeh*† , and Torben Daeneke*†
† School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
‡ Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, New South Wales 2500, Australia
§ Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3168, Australia
∥ School of Science, RMIT University, Melbourne, Victoria 3001, Australia
⊥ Centre for Molecular and Nanoscale Physics, School of Science, RMIT University, Melbourne, Victoria 3001, Australia
Nano Lett., 2017, 17 (12), pp 7831–7838
Publication Date (Web): November 2, 2017
Copyright © 2017 American Chemical Society
We demonstrate a magnetocaloric ferrofluid based on a gadolinium saturated liquid metal matrix, using a gallium-based liquid metal alloy as the solvent and suspension medium.
The material is liquid at room temperature, while exhibiting spontaneous magnetization and a large magnetocaloric effect. The magnetic properties were attributed to the formation of gadolinium nanoparticles suspended within the liquid gallium alloy, which acts as a reaction solvent during the nanoparticle synthesis.
High nanoparticle weight fractions exceeding 2% could be suspended within the liquid metal matrix. The liquid metal ferrofluid shows promise for magnetocaloric cooling due to its high thermal conductivity and its liquid nature.
Magnetic and thermoanalytic characterizations reveal that the developed material remains liquid within the temperature window required for domestic refrigeration purposes, which enables future fluidic magnetocaloric devices. Additionally, the observed formation of nanometer-sized metallic particles within the supersaturated liquid metal solution has general implications for chemical synthesis and provides a new synthetic pathway toward metallic nanoparticles based on highly reactive rare earth metals.