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Latest Potassium perchlorate Stories

34baca1413dbbf6de9c86443a2d30bcc1
2009-06-25 14:49:51

The American Chemical Society says Fourth of July fireworks across the United States, as well as July 1 for Canada Day observances, might go green. The ACS says a new generation of green fireworks is quietly making its way toward the sky -- green as in environmentally friendly. Fireworks, flares and other pyrotechnics traditionally have included potassium perchlorate as the oxidizer, a material that provides the oxygen that fireworks need to burn, the society said. However, perchlorate is an...

1d7a5c21577392df3d5873c15070129e1
2009-06-22 11:40:00

With millions of people in the United States eagerly awaiting those July 4 fireworks displays "” and our Canadian neighbors doing likewise for their July 1 Canada Day celebrations "” here's a prospect for those light shows of the future likely to ignite a smile on Mother Nature's face: A new generation of "green" fireworks is quietly making its way toward the sky.That's "green" as in environmentally friendly.Fireworks, flares and other so-called "pyrotechnics" traditionally have...


Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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