12-30-03 11:03
No 479813
reactions of this kind you might consider using the materials of the old times chemistry:
Iron or clay, whereby here I would vote for clay with saltglaze.
The alchimists and chemists in the very old times used glass or clay retorts for most purposes heated on a big sandbath ^fired by charcoal - a genious method for adjusting temperatures btw.
RAgnaRoEkk
(Hive Bee)
01-03-04 11:17
No 480271
the ceramic would probobly work for the phosphate reduction, i guess the chief concern id have thought is thermal shock cracking?
also what sort of clay would you use and how would you cure it without a kiln?
from what i read cureing clays (which are various metal oxides and silica) works by first dehydrating and decarbonating the oxides, at which point the piece is very delicate, and then at very high temps the oxides fuse, meaning networks of X-O-Y bonds form, where X,Y=either metal or silicon.
(Hive Bee)
01-07-04 17:45
No 481025
- clay: I would use the brown/reddish sort of clay sold at the pottery supply house.
- kiln: I would either go to a pottery or build me kiln - model stoneage or mesopotamia. A Googlesearch for "kiln" "homemade" "easy" might help.
Or do a search for: "Geopolymeres"
- thermal shock cracking: pack your retort in sand or concrete or bury it in the earth....
But to be true: let it go. You WILL hurt youreself, white phosphorus is one of the most evil things on earth, in special so crude. Have a look at some pictures how wounds caused by white phosphorus look like and how long it takes till the heal - if they heal at all.
RaGNaRoEkK
(Newbee)
01-11-04 00:07
No 481761
home brew shops can supply you with all the flasks, beakers, glass tubing. and hydroponics supplies tend to have lab ware for essential oil extraction. kitchen suppliers and them $2 shops have heaps of glass containers
buchner funnel -swim got a large plastic salt shaker from XXX kitchens cut the bottom out inverted it and glued it inside a plastic funnel, coffee filter papers are just cut in a circle to fit and it works as good as swims real buchner funnel
buchner flask - swim uses 500ml polski orgorki gerkin jar with 2 holes drilled in the lid one for the funnel to be glued into, the other for the vacuum line,
vac pump is a 12 volt tyre compresser $15 with a 20 ml syringe minus plunger glued with arldite onto the air inlet plastic hose is pushed over the syringe
sep funnel--get a 50 ml syringe minus plunger cut the finger placement tabs off just enought to leave a flange then drill out a gatorade sized lid so the syringe fits firmly, glue with arldite and screw the lid back on the bottle and you have a bottle with a syringe poking out the top. the syringe was used just because its hard to seperate when you cant see the layers through the neck of a plastic bottle it also reduces the neck size and cutting down waste. syringes come with pastic caps for when you are shaking /swirling and use your finger as the stop cock gloves are advisable .a small hole is drilled in the bottom of the bottle to allow air in and this is taped over with electrical tape or your finger when shaking
you can make do with rubber stoppers from the home brew shop i have heard about a friend using rubber door stoppers
swim still prefers his sep funnel to a glass one as he tends to drop them all the time
im sure ive seen a bottle of port at the bottle shop that was about 750ml and almost round perhaps that would do
swim hasnt had much luck ,making a condenser that was any good his most succsesfull one only for distill not reflux was made from a 2lt coke bottle and a piece of hard clear plastic (was for storing colored pipe cleaners)tube that was pushed through the neck of the bottle and out of a hole that was melted in the bottom the ends were sikaflexed in to prevent leaking and a hole was cut up the top of the coke bottle so you could fill the unit up with ice it worked ok but was bulky and required lots of ice
(Moderator)
03-26-04 04:25
No 497506
(Rated as: good read)
This old textbook; How to Make and Use a Small Chemical Laboratory by Raymond Yates should bee very helpful to some of the bees
The book is quite old, but there's a lot of useful information for those contemplating building a lab
Chemistry is our Covalent Bond
(Moderator)
05-06-04 04:14
No 505268
(Rated as: good read)
This old article from JACS 42 1364-74 (1920) from the Bureau of Standards on various techniques of construction for metal to glass joints should bee very helpful to many
Chemistry is our Covalent Bond
(Hive Bee)
05-08-04 21:10
No 505923
Rounds bottom alcohol decanters would work well as flasks.
I once used it to concentrate battery strength H2SO4 and the glass held up alright. Not sure about 100C+...
My B40 alihn condensor only needs minimal amount of thread tape to form a good seal...apparently.
I'm a diamond that is tired, of all the faces i've aquired.
(exotic beauty)
06-29-04 22:32
No 516500
she finds this little gadget quite handy in the kitchen. [http://ww2.williams-sonoma.com/cat/pip.c
edit: she is especially fond of the description supplied by wm&somoma. so apropos.
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