Author Topic: The blue lava of Kawah Ijen  (Read 73 times)

Offline iTmX nee (RevX)

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The blue lava of Kawah Ijen
« on: June 14, 2019, 10:48:59 AM »
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Offline Simon Varnam

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Re: The blue lava of Kawah Ijen
« Reply #1 on: June 14, 2019, 11:53:41 PM »
That "at least 238ºF" made me curious.
What's so special about 238ºF, I wondered. That's not much above the boiling point of water (212ºF, for all you metric nerds).

Aha:"Sulfur is most easily transported as a liquid, which means that before it goes anywhere, it must first be heated to its melting point of 239 degrees Fahrenheit. During its transit, liquid sulfur must be kept within a 43-degree range — between 266 degrees and 309 degrees Fahrenheit — in order for safe loading and unloading to occur."

All the other questions your could have are answered here:

a selection
Melting point: 115.21ºC
Boiling Point of sulphur 444ºC
The lowest value reported for the Flash Point of sulphur (168ºC - Cleveland Cup Method) is substantially above the melting point.
Auto-ignition Temperature 248-261ºC (applies to the liquid phase)

fascinating reading
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 June 2010.. was the 304th consecutive month with an average temp (CGLST) above  the 20th C average.
UPDATE May 2013 was the 339th....
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