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Pharaoh's snakes

Pharaoh's snakes I - sodium carbonate + sugar

Materials: porcelain bowl, skewers, pipette

Chemicals: ashes, ethanol, C 2 H 5 OH, sugar, sodium carbonate

Procedure: Pour into a bowl ashes of cigarettes (moisten with alcohol), we make a dent in the middle and pour it into a mixture consisting of 10 g of powdered sugar and 1 g of sodium carbonate part Re-moisten the mixture with alcohol.Thus prepared mixture is ignited skewers and pipette when minimum alcohol. The bowl will begin to climb Pharaoh snakes.

Ash serves in this case as a catalyst. Caution When adding ethanol, there is a risk of burns

Other possibilities mixture:

  1. 5 g of sugar, 3 g K 2 Cr 2 O 7 and 1 g of KNO 3
  2. 3 g of NH 4 NO 3, 3 g sugar and 1 g of Mg (powder)
  3. 6 g NH 4 NO 3, 3 g K 2 Cr 2 O 7 and 5 g of sugar (heap or stack to create tests with Peruvian balsam)

Pharaoh's snakes II - potassium dichromate, potassium nitrate and sugar

Tools: mortar, aluminum, asbestos net, trivet, burner, boat

Chemicals: Potassium dichromate, potassium nitrate, sugar

Procedure: Pour into mortar 2 g of potassium dichromate, potassium nitrate 1 g and 3 g sugar. All perfectly homogenous and spoon so that the mixture should generally yellow in color. as follows: the mixture wrap in aluminum foil. The end of the roller on one end closed and open end ignite burner. Attempting to perform asbestos net. When burning a roller Pharaoh had a long climbs. The nascent oxygen allows the conversion of sugar to caramel, which produces a mixture of carbon chromitým and chromate. The mixture has a greater volume than the initial pressure and the prepared mixture is formed in a closed space into bizarre shapes. The roller must be tightly sealed and packaged. It is advisable to roll retie with string or rubber band.

4K 2 Cr 2 O 7 -> 4K 2 CrO 4 + 2Cr 2 O 3 + 3O 2 2KNO 3 -> 2KNO 2 + O 2

Pharaoh's snakes III - rhodanides mercuric

Tools: hour glass, tripod, asbestos net, burner

Chemicals: mercuric thiocyanate

Procedure: the watch glass pour about 0.5 g of mercuric thiocyanate and warm. Thermal decomposition will evolve from the original white powder yellow Pharaoh's snakes. Substance swells, changes color and moves.

Mercuric thiocyanate decays to form a mixture of mercuric sulphide, carbon mercuric and mercurous oxide.

4HG (SCN) 2 + 20O 2 -> HgS + HgO + Hg 2 + O 2 + 8 No 8CO + 7SO 2
Pharaoh had formed in the decomposition of mercuric thiocyanate, resulting oxides of nitrogen and sulfur mix pudding Pharaoh had formed in the decomposition of mercuric thiocyanate formed oxides of nitrogen and sulfur mix pudding

Mercuric thiocyanate may be prepared by reacting solutions of mercuric nitrate (34.3 g in 100 ml water) with a solution of ammonium thiocyanate (7.6 g in 100 ml water). A white precipitate of mercuric thiocyanate by filtration and dry it between filter papers and dosušíme the open air.

Pharaoh's snakes IV - monohydrogenuhličitan sodium and sugar

  1. Taking about three dice lighter HEXA and roughly nadrtíme (in the bag must smash the roller noodles).
  2. In a mortar mix together / towels (especially necessary in the case of using granulated sugar) mixture of sugar and baking soda in a ratio of about 7:1. The mixture does not have exactly the powder fineness, but reasonable fineness needed.
  3. The hexamine create a stack (in my case, the lid of the sign) and we make a dent in it. Do dent hang of NaHCO3 + sugar mixture in an amount of about one teaspoon or two teaspoons.
  4. Light your cigarette and I really enjoy it.
Ecological snake

Pharaoh flower by BoboAUG

Lay the book Straka - Magic experiments in chemistry (1997) (see FTP)
6 g of ammonium dichromate, 3g of potassium nitrate, 9 g Sugar

Unfortunately umačkaná mixture in a foil tube by burned very unevenly on and off, mix freely poured in a foil tube by had a similar problem, but lasted longer burn. That's why I got down to the last possible option and to freely mix the pile. Created something that does not resemble a snake too .. it's more like Pharaoh flower.

Pharaoh flower

THX BoboAUG

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