posted October 09, 1999 11:39 PM            

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-dlwdaw

"... always look on the positive side of things, blow things up not down"

posted October 10, 1999 12:01 AM            

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-dlwdaw

"... always look on the positive side of things, blow things up not down"

posted October 10, 1999 02:20 AM            

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"The knowledge that they fear is a weapon to be used against them." www.50megs.com/nbk2000

posted October 10, 1999 09:33 AM            

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-dlwdaw

"... always look on the positive side of things, blow things up not down"

posted October 10, 1999 09:33 AM            

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-dlwdaw

"... always look on the positive side of things, blow things up not down"

posted October 10, 1999 09:33 AM            

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-dlwdaw

"... always look on the positive side of things, blow things up not down"

posted October 10, 1999 10:46 AM            

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"The knowledge that they fear is a weapon to be used against them." www.50megs.com/nbk2000

posted October 11, 1999 04:22 AM            

To Prepare Citric Acid, add 4.5 ounces chalk by degrees to 4 pints lemon juice, heated, and mix; set aside so that the precipitate can settle; afterwards pour off the fluid. Wash the precipitated calcium citrate frequently with warm water, then pour upon it 27.5 fluid ounces diluted sulphuric acid and 2 pints distilled water, and boil for 15 minutes. Filter and evaporate the filtered solution with a gentle heat, and set it asideso that crystals may form. To obtain the crystals pure, dissolve them in water a second and third time, filter each solution, evaporate, and set it aside to crystallize.
In conducting this process some care is necessary to ensure success. The chalk used should be dry, and in fine powder, andbe added to the juice till its perfectly neutralized, and the quantity consumed must be exactly noted. The precipitated calcium citrate of time should be well washed with water, and the sulphuric acid diluted with 6 or 8 times its weight of water, poured upon it while still warm, and throughly mixed with it. The agitation must be occasionally renewed for 8 or 10 hours, when the dilute citric acid must be poured off, and the precipitate of calcium sulphate thoroughly washed with warm water, and the washings added to the dilute acid. The latter must then be poured off from the impurities that may have been deposited, and boiled unitil it aquires a specific gravity of 1.13, when the process must be continued at a lower temperature until a pellicle (crusty film) appeares upon the surface.

This part of the process requires great attention and judgment, as, if not properly done, the whole batch may be carbonized abd spoiled. At this point the evaporation must be stopped, and the concentrated solution emptied into warm and clean crystallizing vessels in a dry room. At the end of 4 days the crystals will be ready to be romoved, when they must be well drained, redissolved in as little water as possible, and, after being allowed to stand for a few hours to deposit impurities, again evaporated and crystallized.

When the process has been well managed, the acid of the second crystallization will usually be sufficiently pure; but if this be not the case, a third, or even a fourth crystallization must be done. The mother liquors from several pans are collected together, and, by evaporation, yield a second or third crop of crystals obtained by evaporation as before. Citric acid crystals are obtained with great ease, but in some cases, where all the calcium citrate has not undergone decomposition by the acid, a little of that salt is taken up by the free citric acid, and materially obstructs the crystallization. This is best avoided by exactly measuring the quantity of the sulphuric acid to that of the calcium, 49 parts by weight of sulphuric acid to 50 parts chalk. In practice it is found that a very slight excess of acid is prefered to leaving any calcium citrate undecomposed.

2 gallons of lemon juice yields about 1 pound of crystals (about 5%).

Tests for the purity of citric acid: When pure, it does not yield a crystalline precipitate when added in excess to a solution of potassium corbonate, such a precipitate indicates the presence of tartaric acid. It is entirely soluble in water, and what is thrown down by lead acetate from this solution is entirely soluble in dilute nitric acid. No potassium salts (besides tartate) yeilds a precipitate with the aqueous solution. It is entirely decomposed by heat. Added sparingly to cold lime water it doesn't render it turbid.

Hexamethylenetetramine(cheap) :Also called:
Cystamine,Urotropine,Fuel Tablet, find it where fishing/camping/outdoor activity goods
are supplied.

Citric Acid(cheap): pure, dry crystals at
pharmacies.It gives you acidity to speed
up the process, washed away in water, is stable too.

(HCl and H2SO4 sold for other than lab use
have ferric ions (iron impurities)in them,
will decompose H2O2 )

Now follow the same instruction others told you (follow it word by word, ice bath and
waiting is required),except adjust the amount
of H2O2 as the concentration varies.I encourage you to put a little extra H2O2 in it as it will decompose.

**After a point that all ingredients dissolve in the same container : STOP !!nothing more goes into the mixture from now on, even the stirring rod!!**

Ice bath, sit cold as been told.

Now you have to reduce the water from the mix
and i hope you used a shallow(but thick), plastic dish as the container.If not,
DON'T change the container u use

Use temperature around 40 C to warm it,
till it SEEMS sticky AND has white crystals in it. Don't use anything to test
if it is sticky, tip the container, if it
doesn't flow AND has CRYSTALS in it, perfect!You should also be aware that at this stage it is able to kill.(It punched
a hole in my dish when I poked it with a
contaminated rod). *Note* : Don't attempt to
dry out all the water, it won't increase your
product yield. Do not sun-dry it as UV kicks electrons' ass. Be patient for the slow drying process, a deadly brew is worthy of
several days. Prevent dusts to enter your container.

How to get the crystal in it? Flush the crystal into a larger, clean plastic/glass/ceramic bowl , then gather/filter the crystal in the bowl, wash again, warm it dry (again, no sun-dry)

There u go. High quality HMTD.
Pile some in a pile no larger than 3mm dia.
insert a long, burning bamboo/wood strip.insert horizontally,
It will respond rapidly to the fire, gives you nice red-orange fireball and no smoke at all.

Enjoy the fun.

posted October 13, 1999 09:14 PM            

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Knowledge is power, power leads to corruption, corruption is a crime, crime doesn't pay. So if you know to much you will go broke!!