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Note: Several synonyms, including:
Ammonium fluosilicate, Ammonium
silicofluoride
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follow
up article of August 12, 2005
http://www.poughkeepsiejournal.com/apps/pbcs.dll/article?AID=/20050804/BUSINESS01/508040322
August 4, 2005
Poughkeepsie Journal (New York)
Powdery chemical covers cars in East Fishkill
Philips plant emitted substance
By Nik Bonopartis
HOPEWELL JUNCTION — A baseball-sized clump of a potentially
dangerous chemical was released last month at a local manufacturing
plant, worrying employees whose cars were covered by the chemical.
The "spill" happened on July 7 at the East Fishkill IBM
and Philips Semiconductor campus, according to internal documents
from IBM and Philips. About 80 cars belonging to employees of Philips
and IBM were coated with the chemical compound.
Early in the afternoon that day, "some of our IBM employees
reported a powdery material found on their cars which were parked
on the west side of Building 322," according to an internal
memo to IBM managers from Hank DiMarco, an IBM senior location executive.
Some employees have said they're concerned about the chemical,
which causes symptoms ranging from respiratory problems to internal
bleeding, but would not speak on the record.
An initial test by Philips "did not reveal any health or safety
concerns," DiMarco wrote in his memo, but employees were given
a contact at IBM's "Global Well-being Services" if they
had concerns.
The chemical was re-leased during a maintenance project on exhaust
ducts in the Philips manufacturing plant, Philips spokesman Paul
Morrison said.
"This chemical is a byproduct of the manufacturing process,
which builds up in exhaust ducts. As part of this routine maintenance,
a motor was replaced on an air handler, and the exhaust ducts were
also being cleaned," Morrison said. "When the air handler
was turned back on, a small amount of the buildup that was dislodged
in the cleaning process, was blown into the atmosphere, covering
a small section of the parking lot."
The released chemical was ammonium hexafluorosilicate, also called
ammonium fluorosilicate, Morrison said.
According to a "Material Safety Data Sheet" by a fluoride
company, exposure through the air can lead to symptoms ranging from
mild — like coughing and difficulty breathing — to severe
in larger doses, including skin irritation and burns, internal bleeding
and, in the highest doses, death.
The amount released at Philips was "far below reportable levels,"
Morrison said. The company did not notify the state Department of
Environmental Conservation or the Dutchess County Department of
Health, but both agencies were alerted when an anonymous caller
reported the incident two weeks later.
The DEC's Division of Air contacted Philips, which reported that
the released amount was "less than a cupful," said Wendy
Rosenbach, a DEC spokeswoman.
The DEC has closed its investigation.
"We didn't go to investigate it because it had been several
weeks since it had been cleaned up," she said. "We don't
have any environmental concerns at this point because of that."
Reportable amount unclear
There is some confusion about how much ammonium fluorosilicate
constitutes "reportable levels." Morrison did not say
exactly how much was released, and the DEC could not say how much
of the chemical would need to be released before it was considered
an environmental hazard.
The county health department hasn't received complaints about exposure
to the chemical, said Rich Robbins, associate public health sanitarian.
The Philips spokesman did not know what, if any, cleanup efforts
were used.
According to the National Institute for Occupational Safety and
Health, ammonium fluorosilicate should be disposed of by trained
workers in protective suits and breathing apparatus, and it should
be removed "in a clean, dry container."
Nik Bonopartis can be reached at nbonopar@poughkeepsiejournal.com
Chemical facts
Ammonium fluorosilicate, also called ammonium hexafluorosilicate,
is a chemical compound belonging to the "inorganic fluoride"
chemical family.
Ammonium fluorosilicate can come as a liquid or as an odorless
powder, and is primarily used for industrial applications.
Inhalation, skin and eye contact can produce a variety of symptoms,
ranging from respiratory problems and skin burns to internal bleeding,
according to the chemical's Material Data Safety Sheet. The National
Institute for Occupational Safety and Health recommends immediate
medical attention for those who are exposed to the chemical.
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