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you've got to read this! re: titanium dioxide

updated mon 23 apr 01

 

KYancey on sat 21 apr 01


This is an article in the St. Petersburg Times that ran
04-21-01.

http://www.sptimes.com/News/042101/SouthPinellas/Chemical_on_worker_cl.shtml

Ken

Edouard Bastarache on sat 21 apr 01


"It was a total overreaction." according to company officials.
Maybe they were right.

Titanium compounds are considered to be physiologically inert.
There are no reported cases in the literature where titanium
as such has caused human intoxication.
The dusts of titanium or most titanium compounds such
as titanium oxide may be placed in the nuisance category.
Titanium tetrachloride, however, is an irritant and corrosive
material, because, when exposed to moisture, it hydrolyses
to hydrogen chloride.

Titanium dioxide may be considered a skin irritant.
ACGIH TLV=3D10mg/m3 (Nuisance particulate).
Not classifiable as a Human Carcinogen.

I worked more than 20 years for Tioxide of Canada,
as a consultant, and nerver saw a single case of skin
irritation from exposure to TiO2 while I saw irritations
and burns from corrosive materials used in the process.



Later,

Edouard Bastarache
Irr=E9ductible Qu=E9becois
Sorel-Tracy
Dans / In "La Belle Province"
edouardb@sorel-tracy.qc.ca
http://www.sorel-tracy.qc.ca/~edouardb/


Reference:
Sax's Dangerous Properties of Industrial Materials, 10th edition, 2000.

ferenc jakab on sun 22 apr 01


> This is an article in the St. Petersburg Times that ran
> 04-21-01.
>
>
http://www.sptimes.com/News/042101/SouthPinellas/Chemical_on_worker_cl.shtml
>
> Ken

I have to agree that in this case this might have been an over reaction.
However, it is not long since staff in a South Australian hospital were
overcome by fumes from a patient who tried to poison himself with copper
arsenate and in another case during an autopsy the staff conducting the
autopsy died from the fumes given off by the deceased.

I suppose in these circumstances medical staff might feel nervous.
Feri.