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A sparkler is a type of hand-held that burns slowly while emitting bright, colored sparks. It burns at a high temperature (over 1000°C), so it can be very dangerous.

Sparklers are particularly popular with children. In the , a sparkler is often used by children at bonfire and fireworks displays on Guy Fawkes Night, the fifth of November, and in the United States on Independence Day. They are called phuljhadi in Hindi and are especially popular during the festival.


Composition
Sparklers are generally formed around a thin non-combustible metallic wire, about long, that has been dipped in a thick batter of slow-burning pyrotechnic composition and allowed to dry. The combustible coating contains the following components; multiple ingredients can be used:
  • , main reactive ingredient; type of metals influences the color of sparks; size of particles influences shape and size of the sparks
  • , main reactive ingredient
    • Potassium nitrate
    • Strontium nitrate
    • Potassium perchlorate, more powerful but potentially explosive
    • Ammonium perchlorate
  • Combustible binder, to hold the composition together
  • Additional fuel (optional), to modify the burning speed
  • Pyrotechnic colorants (optional), to color the sparks
    • chlorides and nitrates of metals, e.g. barium, strontium, or copper

The colored spot on the top of each rod indicates the color of the sparkles emitted when ignited.


Uses
Sparklers are usually used for celebrations. They can be used for . Due to the high (over 1000°C) burning temperature of certain compositions, they can also be used to ignite .


Safety issues
A 2009 report from the National Council on Fireworks Safety indicated that sparklers are responsible for 16 percent of legal firework-related injuries in the United States. The U.S. Consumer Product Safety Commission's statistics from the Fourth of July festivities in 2003 indicate that sparklers were involved in a majority (57%) of fireworks injuries sustained by children under five years of age.

Subsequent reports from the U.S. Consumer Product Safety Commission about "Fireworks-Related Deaths, Emergency Department-Treated Injuries, and Enforcement Activities" indicate:

36%
30%
79%
61%

The devices burn at a high temperature (as hot as 1000° to 1600°C, or 1800° to 3000°F), depending on the fuel and oxidizer used, more than sufficient to cause severe skin burns or ignite clothing. Safety experts recommend that adults ensure children who handle sparklers be properly warned, supervised and wearing . As with all fireworks, sparklers are also capable of accidentally initiating wildfires. This is especially true in drier areas; in Australia, for instance, sparkler-related bushfire accidents have led to their banning at public outdoor events during summer like celebrations. Put Safety First This Australia Day, DFES, January 2012

Sparkler bombs are home-made devices constructed by binding together as many as 300 sparklers with tape, leaving one extended to use as a fuse. In 2008, three deaths were attributed to the devices, which can be ignited accidentally by heat or friction. Since they usually contain more than 50 milligrams of the same explosive powder found in , they are illegal in the U.S. under Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) regulations. 'Sparkler Bombs' Mar Celebrations, Wall Street Journal


In art and popular culture
In 1999, the artists Tobias Kipp and Timo Pitkämö developed a technique of drawing portraits with burning sparklers on paper, which they called . Since then the two artists have drawn more than 20,000 pyroportraits. Pyrografie In 2007, art group lit 10,000 bound sparklers which it described as "symbolic liberation" from traditions. Free Bariumnitrate A large group from Toronto, Ontario, Canada also held an event displaying 10,000 sparklers to symbolize brightness, intensity, warmth and creativity. Reinventwinter.net


See also

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