I'm sure that Rin Kagaku Kogyo know what they are doing, but it worries
me. What specifically worries me is that if you heat red phosphorus, not
to a very high temperature, it turns into another allotrope, white
phosphorus, which is not only highly toxic but spontaneously inflammable
in air. Note that this is not oxidation, it works even in a vacuum. I
suppose that some form of proprietary inhibitor is used.
But what the twitchy EU environmental people make of it seems
uncertain. It appears far more worrying, both in terms of mass used and
potential hazard, than the minute amounts of cadmium sulfide in
photoresistors, for example
Best wishes
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK
On 2019-01-01 15:03, Scott Xe wrote:
Happy New Year in 2019!
Although brominated flame retardants used in plastic are commonly
replaced by red phosphorus flame retardants due to environmental
saving, Red-P may result in possible reliability of overheating/catch
fire under high humidity and temperature. It is learnt that lots of
big corp in the consumer electronics industry have banned or regulated
the use of red flame retardants after a large recall in 2014.
However, there is no country so far to prohibit the red phosphorus.
What are the barriers not to become restricted substance in RoHS,
REACH or else one?
Thanks and regards,
Scott
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