I am seeking to purchase a compound that can be molded into a mold to receive a small charge of metal , when ignited will burn and melt the metal but retain it strength to support the weight of the metat . This putty was designed by the engineering dept. of a midland university in the 60th.It was intended to melt small quantity of metal without the use of a furness , temperature of above 1100 degree were produced . I require a small quantity of approx. 2 kg.
138004
the railroad industry uses this medthod to weld two rails\ntogrther. in 1968 i first witnessed it. the name of the compound exscapes me...this should lead you in the right direction.
16473
please do not do this for a science project.  too common.  but if you really want to know...most ppl get a small coke bottle and mould clay around it to get the mountain shape.
345297
No, I would think melting it would give off some fumes too.  You boys play safe outside in open air, lol
84344
the side wall on the roll cage should be 5/6 mill thick that should adsorb most of the impact that's what we use  to build land rover trailers and rock claimers it will have to be mild steel where you from\n     \nwolf4128
343533
i heard there are tiny metals ranging in size between\nmicrodots and pieces of wire 1/3rd of an inch.
95575
im highly sceptical on that, because the bond angle of carbon is different from other chemicals, but if one was to be formed, i would imagine silicone or germanium would form it, although, silicone forms stronger bonds, which cant bend that easily, I THINK... not perticularly true... just an assumption on my part
66948
I saw a very weird program on BBC America (or the discovery channel) where they made a furnace and put the ore in a cruicible with crushed glass.  After they melted every thing down, the impurities from the gold bonded with the crushed bits of glass, freein the gold from the ore.  You need a lot of heat and high temps, but no arsenic is required.\n\nAnother guy on the same program did the same thing by taking a carbon rod from a battery and hooking it up to 24VDC with two car batteries.  It heated it VERY quickly.  I am sorry I cannot remember the name of the program!!!!  It was using only 19th century technology to replicate settlers in Canada during the Yukon gold rush days.
527473
OMG!\ni have the same question!\nmine is:\nA piece of an unknown metal has a mass of 20.0 g and at 100.0 C is placed in a styrofoam cup calorimeter containing 50.7 g of water at 22 C. If the final temp is 27.2 C, calculate the specific heat capacity of the metal. Assume that all the energy lost by the metal is gained by the water.\n\nok, haha fine, not the SAME question, but close enough. But, i'm uber confused. ><
340214
We have to assume that all materials, Al bottle, water and Fe are in 100 % insulated system.\nThen let the final temp = t C. The specific heat of Al,Water and Fe = Ca, Cw, Cf respectively, \nThen heat released = heat absorbed.\nHeat released = 0.2 * (75-t) * Cf\nheat absorbed = 0.5* (t-20) * Ca + 0.118* (t-20) * Cw\n0.2 * (75-t) *Cf = 0.5*(t-20)*Ca+0.118*(t-20)*Cw\nYou will find t after replacing Ca,Cw,Cf with value from specific heat table.\nHope this will help
519375
a compound contaning carbon
193120
You are not going to be able to buy nitric acid above 70% pure.  Nitric acid pretty much dissolves anything it comes in contact with which causes for its low purity.  I would not suggest heating concentrated acid since the fumes it will produce are very dangerous.  The fumes at room temperature will even cause burns. Depending on what you are trying to do, the acid will need some oxygen to dissolve metals.  With stainless steel, a small scratch on the surface will be enough.
352196
Try amazon:\nhttp://www.amazon.com/s/ref=nb_ss_gw/103-2181071-9005440?url=search-alias%3Daps&field-keywords=electromagnetic+casting\n\nor the American Society for Metals bookstore at:\nhttp://www.asminternational.org/Template.cfm?Section=Bookstore
252170
The conductivity of aluminium is required. A detailed solution of the Heat equation (A pde) is necessary to get an accurate answer. In the absence of any simplifying assumptions, this problem is not trivial
599459
since a "certain" soft metal on burning produces lime  lime cannot be an element . hence the answer is 'c'\nanswer : 'c'\n  note: the soft metal is calcium
88050
One could argue plastic wrap since the Aluminum foil would allow for greater heat conduction into the orange from the air.\n\nAluminum, being a metal, is a good conductor of heat.  The metal foil will allow for heat from the "hot" air to be conducted into the "cold" orange much quicker than the plastic wrap would.\nI dont think the light enegry being absorbed or reflected is that significant.\n\nTake the opposite case as an example, say you had a hot metal pot of water an you wanted to set it on some surface so that it stays hot the longest.  If you set the pot on a metal cooking sheet, the heat will be conducted away from the pot and into the air much quicker than if you were to set it on a peice of wood for example.
41962
It is just from the way that the elements are fused together to form the compound. It's the same as any other metal.
169795
I can't answer your question with absolute certainty, I apologise, but may have something to point you in the right direction...\nThere used to be a show on HGTV called Modern Masters- there was a metal artist on there once, the cut 1/2 inch wide copper strips, wove them into a 'fabric', carefully folded it and placed it into a kiln (1500? 1600? degrees f), he let it soak in the heat for a while (can't remember how long), then took it out and placed it into a water bath.  I think part of the colouring process might have come from the rapid cooling?  The piece had the colours you were looking for, as I recall.  \nI like the sound of what you're doing...hope it all works out for you...