Edouard Bastarache Inc. on sun 23 may 04
Hello Ron,
I-Human Toxicity Excerpts:=20
... /IN/ A PLANT MANUFACTURING ANTIMONY TRIOXIDE ... MEN ... CAME INTO =
CONTACT WITH BOTH DUST AND FUMES ... SKIN, EXCEPT FOR A SMALL PATCH OF =
IRRITATION IN 2 MEN, /WAS/ QUITE NORMAL, AND THESE MEN, IN SPITE OF A =
HIGH FECAL EXCRETION OF ANTIMONY FROM 10.3 TO 97.8 MG/DAY SHOWED NO =
OTHER SYMPTOMS OF POISONING.
[Browning, E. Toxicity of Industrial Metals. 2nd ed. New York: =
Appleton-Century-Crofts, 1969. 33]**PEER REVIEWED**=20
II-
BECAUSE OF THE POSSIBILITY THAT ARSENIC COULD ACT AS A COCARCINOGEN WHEN =
ANTIMONY DUSTS AND FUMES ARE INHALED, THE PHYSICAL STATE OF ARSENIC IN =
ANTIMONY TRIOXIDE WERE INVESTIGATED. EFFORTS TO REMOVE ARSENIC EITHER BY =
DISSOLUTION OR BY SUBLIMATION WERE UNSUCCESSFUL. ON BASIS OF THIS =
INFORMATION & NEGATIVE ACUTE, ORAL TOXICITY TESTS IN ANIMALS, IT WAS =
CONCLUDED THAT ARSENIC EXISTS IN ANTIMONY TRIOXIDE IN A PHYSICALLY & =
TOXICOLOGICALLY INERT FORM.
[American Conference of Governmental Industrial Hygienists. =
Documentation of the Threshold Limit Values and Biological Exposure =
Indices. 5th ed. Cincinnati, OH:American Conference of Governmental =
Industrial Hygienists, 1986. 34]**PEER REVIEWED**=20
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We should not refrain from using antimony trioxide.
It is the antimony ores that contain significant amounts of arsenic and =
lead.
Later,
"Ils sont fous ces quebecois"
Edouard Bastarache
Irreductible Quebecois
Indomitable Quebeker
Sorel-Tracy
Quebec
edouardb@sorel-tracy.qc.ca
http://sorel-tracy.qc.ca/~edouardb/
http://perso.wanadoo.fr/smart2000/index.htm
http://www.digitalfire.com/education/toxicity/
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