JUST GO THROUGH IT TO GET AN IDEA ABOUT PYRO TECHNICS...!!!

1. Pyrotechnics Group - 4 Batch - ll

2. Pyrotechnics is the science of materials capable of under going self contained and self sustained exothermic chemical reactions for the production of heat, light, gas , smoke and sound. What does Pyrotechnics include? What are the chemicals used in Pyrotechnics? How Pyrotechnics can be classified?

4. Black powder

5. Compositions

6. Stars

7. Shells

8. Whistle mix

9. Lamp black

12. magnesium is used in flash powders to produce bright lights.

13. metallic form of magnesium is more reactive fuel than Aluminium.

14. strontium compounds are used to produce red lights.

18. used to produce bright orange sparks.

19. must be coated with linseed oil.

20. finely divided iron is used as a slow fuse.

21. copper:

22. copper acetoarsenite used for green sparks.

23. copper(ll) chloride produces blue when excited.

24. zinc:

25. powdered Zn is used to produce spreader stars.

26. used in rockets with sulfur.

28. Mainly used as solvents .

29. Ex: acetone dissolves nitrocellulose.

30. methyl ethyl ketone dissolves parlon.

31. Gasoline - used for making a simple fire ball .

32. how to ignite? put the fuel in a mortar tube fill black powder in bottom portion introduce flame in black powder

34. by adding carbonates

35. by using NaCl

36. by catalysts (especially in ROCKET FUELS)

37. by changing the % of reactants

38. by using appropriate solvents

39. Vigorous nature of oxidizers:nitrates < perchlorates < chlorates

40. Pyrotechnics in space applications Pyrotechnic low shock operation nut Exhaust volves Thermite mixture+ Low explosive Chamber containing Compressed air piston Nut

41. 1. Initiation 2. Thermite combustion, heat conduction 3.temp. rise 4.Displacement of the piston; opening of threaded segments; bolt release

42. Hazardous homemade pyrotechnic flash pot

44. Consumer pyrotechnics are devices readily available for public without special licensing and training.

46. THANK YOU