Galinstan tends to wet and adhere to many materials, including glass, which limits its use compared to mercury.
Galinstan is commercially used as a mercury replacement in thermometers due to its nontoxic properties, but the inner tube must be coated with galliumoxide to prevent the alloy from wetting the glass surface.
Galinstan is difficult to use for cooling nuclear reactors, because indium has high cross section for thermal neutrons, efficiently absorbing them and inhibiting the fission reaction.
Galinstan is an eutecticalloy of gallium, indium, and tin which is liquid at room temperature, typically freezing at -20 °C (-4 °F).
Galinstan is commercially used as a mercury replacement in thermometers due to its nontoxic properties.
Galinstan has higher reflectivity and lower density than mercury; it is investigated as a replacement of mercury in spinning mirror telescopes for astronomy.
Galinstan is an alloy An alloy is a combination, either in solution or compound, of two or further elements, at least one of which is a metal, and where the resultant material has metallic properties.
This makes the pipette very variable and it can be adapted in optimum manner to all conditions for the most varied injections, which take place in the case of biological samples in the temperature change range of 5 to 10.degree.
The Galinstan to silicon oil quantity ratio with a borosilicate glass nanopipette is 4:1.
After drawing out the capillary to the pipette, the tip is firstly filled with the substance to be injected by means of the capillary forces acting on the filament.
How to take an axillary temperature(Site not responding. Last check: 2007-10-25)
Glass thermometers with galinstan may also be used to check an axillary temperature.
Galinstanthermometers have a silver colored line, but will be marked "mercury-free" when you buy one.
Alcohol-filled and galinstan glass thermometers are harder than digital thermometers to find in regular grocery stores.
www.ads2ip.com /document.php?id=326 (860 words)
A galinstan expansion femtosyringe for microinjection of eukaryotic organelles and prokaryotes - Nature Biotechnology(Site not responding. Last check: 2007-10-25)
A galinstan expansion femtosyringe for microinjection of eukaryotic organelles and prokaryotes
A galinstan expansion femtosyringe enables femtoliter to attoliter samples to be introduced into prokaryotes and subcellular compartments of eukaryotes.
The method uses heat-induced expansion of galinstan (a liquid metal alloy of gallium, indium, and tin) within a glass syringe to expel samples through a tip diameter of about 0.1
This alloy, with the trade name Galinstan, has a freezing point of −20 °C. Magnesium gallate containing impurities (such as Mn), is beginning to be used in ultraviolet-activated phosphor powder.
It has been suggested that a liquid Gallium-Tin alloy could be use to cool computer chips in place of water.
en.wikipedia.org /wiki/Gallium (939 words)
HOW TO TAKE AN AXILLARY TEMPERATURE(Site not responding. Last check: 2007-10-25)
Glass thermometers with galinstan (GAL-in-stan) may also be used to check an axillary temperature.
Galinstanthermometers have a silver colored line, but will be marked "mercury-free" when you buy one.
Alcohol-filled and galinstan glass thermometers are harder than digital thermometers to find in regular grocery stores.
There are a number of alternatives to mercurythermometers depending on the specific application including digital (note: digital thermometers contain a button cell battery which contains a small amount of mercury and should be disposed of properly), alcohol and mineral spirits (e.g.
those containing red or blue liquid), and galinstan, a mixture of gallium, indium and tin that is similar to mercury in appearance (these are not yet widely available).
Households should dispose of mercury containing thermometers and any waste created from the cleanup of broken thermometers at local household hazardous waste collection events sponsored by their local municipality or solid waste district.
– Oral readings were simultaneous (Galinstan on one side; mercury on the other) bilateral measures at the location of the sublingual artery (pocket of tissue at the base of the tongue, just above the sublingual artery) [21,52].
The technique for groin/femoral/inguinal temperature readings involved gentle slight abduction of the patient's leg, location of the femoral pulse, placement of the sheathed thermometer on and lateral to the pulse site, and slight adducting of the leg to create a seal [23,34].
For both mercury and Galinstan glass thermometers, rectal readings were higher than oral and oral readings were higher than skin site temperature assessments.
- Oral readings were simultaneous (Galinstan on one side; mercury on the other) bilateral measures at the location of the sublingual artery (pocket of tissue at the base of the tongue, just above the sublingual artery) [21,52].
- Axillary readings were simultaneous (mercury on one side; Galinstan on the other) bilateral measures deep into mid-axilla [apex] [10,23,34,53] with client's arms adducted.
- Technique for rectal included two sheathed thermometers (one mercury, one Galinstan) with water-soluble lubrication, inserted together to a depth of five cms [21,54,55].
Galinstan (uses a gallium-indium-tin alloy, otherwise similar in appearance and operation to the mercury version).
Apparently Galinstan, unlike mercury, wets glass, and would therefore tend to creep up a glass capillary tube through the action of surface tension.
This may explain why Galinstanthermometers haven't been available until recently, and what enabling technology was required to develop the alloy as a mercury replacement in glass thermometers: for a thermometer, you need to have the length of the liquid column be determined solely by thermal expansion.
A contact in the liquid metal is run to the center lead of your coax for the RF, and the shield is connected to radials (the solid metal is red in the diagram).
Galinstan is composed of Gallium and other metals.
You can also buy what appears to be Galinstan from the same website.
Today mercurythermometers are still widely used in meteorology, however in other usage they are becoming increasingly rare, as mercury is highly and permanently toxic to the nervous system and many countries have banned them outright from medical use.
Extensive studies were conducted by the Hygiene Institute at the University of Tubingen in Germany regarding the safety of human exposure to the Galinstanalloy.
No adverse reaction occurred whether the alloy was ingested, aspirated or applied to the skin.
Existing legal bans on the use of mercury, for instance in France, Scandinavia as well as those planned for Europe and the USA are accelerating the international substitution of existing products containing mercury by Geratherm technology.