Re: [CAD_CAM_EDM_DRO] Re: Milling Glass

If you're not dead after being poisoned by the Fluorine then you're left
with bones - the calcium, so they're pretty much useless from then on in.
Personally I'd much rather use a sand blaster, saving myself a few hundred
pounds in acid and maybe even my amazingly good looking self. `.^)

John

----- Original Message -----
From: "Jon Elson" <jmelson@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Monday, April 16, 2001 3:38 AM
Subject: Re: [CAD_CAM_EDM_DRO] Re: Milling Glass


>
>
> Tom Eldredge wrote:
>
> > I have heard of hydroflouric acid getting on a hand, and then before its
> > affects were arrested, the user had his arm surgically removed from the
> > shoulder. I am not a chemist, but worked once in the hazardous waste
> > industry where this occured. The "user" was the truck driver dumping
the
> > sludge which contained the acid. Maybe someone can give a more
technical
> > response.
>
> Yes, a HF burn is quite severe. If you detect it right away, there are
treatments
> that can arrest the damage, but there will still be a lot of tissue
damage. If you
> don't arrest it with alkali applications, and sometimes alkali injections,
then it
> just keeps burrowing deeper until it gets into the bones. It seeps
through the
> bones, burning and poisoning the bone marrow. Apparently, some HF burns
> are not immediately painful, so people shrug them off, and continue
working.
> Hours later, it starts to give immense pain, but by then, real damage has
> started, and it is beyond the arresting treatments. Sometimes, they can
> cut down and remove the HF contaminated tissue, but if you let it go
> too long, amputation is necessary to avoid Fluoride toxicity. I think the
> bones are slowly turned into Calcium Fluoride, which in modest doses
> becomes poisonous.
>
> Jon
>
>
> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
discussion of shop built systems, for CAD, CAM, EDM, and DRO.
>
> Addresses:
> Post message: CAD_CAM_EDM_DRO@yahoogroups.com
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...
> Moderator: jmelson@... timg@... [Moderator]
> URL to this page: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> bill,
> List Manager
>
> FAQ: http://www.ktmarketing.com/faq.html
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>