What fluid can I use for preserving a specimen that I can find around the house?
832218
Any fluid that will keep the air out but which won't corrode the specimen.\n\nStrong alcohol such as vodka is good or perhaps something like methylated spirits or while spirit. Avoid household bleach or vinegar as they're likely to be too corrosive.\n\nAs spiders have a hard external skeleton, it is also possible to preserve them by drying them out... you often see this in butterfly collections. Just use a long stainless steel pin and pin the body of the spider to a small piece of wood or thick cardboard. Place the specimen in somewhere warm, dark and dry for a couple of weeks. Don't cover it in anything that will keep moisture in or it will rot. The specimen will then be perfectly preserved (but very brittle - so take care!)
61364
The VERY best thing to use is aloe vera.  Straight from the plant is the ultimate best but you can buy it over the counter too.  Its natural and works great.  If you buy it over the counter, keep it in the fridge.  The additional coolness will help even more.
29189
WD-40, pal.  Works like a charm.  You may have to scrub it off with a wire brush, but the 40 works on everything.  Try to keep a couple cans around the house.
483055
Wear your PPE (Personal protective equipment). The safest way would probably be to dispense it in a fume hood, with secondary containment (e.g. inside a container with boundaries). You'll want the secondary containment to contain something that can neutralize the base, such as a weak acid. This is for the liquid.\n\nThe solid sample should be dispensed in a fume hood, using a scoopula to transport the sample after it has been poured out.
320888
Poppet valve would be your likely answer.\n\nCheck valve is also acceptable.
971873
The ones that I use in testing precious stones are :-\n1) Bromoform - Density of 2.90 and can be diluted with toluol.\n2) Acetylene tetrabromide - D. = 2.95 can be diluted with toluol.\n3) Sonstadt's solution. Saturated solution of potassium mercuric iodide in water D. = 3.18 can be diluted with water.\n4)Klein's solution. Saturated solution of cadmium boro-tungstate in water D. = 3.28 can be diluted with water. \n5) Methylene iodide (CH2I2) D = 3.32 can be diluted with toluol\n6) Rohrbach's solution Saturated Barium mercuric iodide in water D.= 3.58\n7)Methylene iodide with dissolved iodine and iodoform D = 3.6\n8) Clerici's solution Saturated solution of thallium manolate and thallium formate in water D = 4.15 can be diluted with water.\n\nAll of these liquids are POISON and most give off noxious fumes so they must be handled with great care.\nThey are also, I regret to say very expensive.
80429
The CRC Handbook of Chemistry and Physics has all kinds of good information like that (although it is pricey).\n\nOr, search the web for the specific liquid of interest.
90862
Many Many years ago I did one for a science project. I used a round box /painted. Lined with plastic wrap. I them coated the bottom of the box with hair gel.  then i made the nucleus out of a nerf ball I cut into kind of a lima bean shape.  Little braided pieces of yarn for those mitochondrion.  etc.  Whatever I could find around the house that looked like something inside the cell.   My science teacher liked the hair gel the best (it was the cytoplasm or whatever you call it)
529301
test the corrosive properties of different solutions. Use ungalvinized steel nuts from hardware store. ( It is important that they are not galvinized, not stainless, and not zinc.) use soda, salt water, tap water, urine, bleach, and vinegar. It should yeild surprising and interesting results.\nP.S. don't use metal bowls, take lots of pictures.
139459
Don't worry about it if it's less than a year old. If it is more than a year old, there is a preserve you can buy at any auto parts store. You just toss it in the tank.
119514
Put it in a paper shredder :)
275912
Sell it on ebay if its some major brand like quaker state, pennzoil, castrol, or mobil, etc. I wouldn't use it of course, or open it if its still sealed.
1057804
try this\n\nhttp://en.wikipedia.org/wiki/Category:Laboratory_equipment
96081
Put it in 12 mole HCL them heat to 100 degrees celsius And it should be clean
265450
black and white cream, my great grand mother used it my grandmother, my mother and so on. try the maxy's stores. it's about $2. It's a small round container.
880588
You could bottle it and sell it on ebay to New Age people.  Many receipes and treatments call for rain water, and it seems you have some "vintage" rain water.
72347
You could keep it in a moisture proof cedar chest.\n\nHowever, if it has sentimental value, I would use it.  Saving things for a special occasion that never comes is sad.\n\nLet it make some memories for you too.  Keeping it in a box will not do that.  And, you can check completed auctions on EBay for current values.