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#1
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diatomite and diatomaceous earth
If one makes a Search: Diatomite and silicosis, one finds numerous warnings
by different U.S. govt. agencies on the dangers of diatomite and diatomaceous earth.Some people use diatomaceous earth as a bug killer thinking that it is not dangerous, like chemical pesticides. Masks, gloves and body covering are needed. Even workers handling bags of perlite are required to wear masks. Ed Cormier |
#2
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Edmond Cormier wrote:
If one makes a Search: Diatomite and silicosis, one finds numerous warnings by different U.S. govt. agencies on the dangers of diatomite and diatomaceous earth.Some people use diatomaceous earth as a bug killer thinking that it is not dangerous, like chemical pesticides. Masks, gloves and body covering are needed. Even workers handling bags of perlite are required to wear masks. Ed Cormier Ed; Diatomaceous earth is the skelital remains of diatoms. The diatoms are minute sea creatures that lived melenia ago, at the bottom of the then food chain and their skelital remains settled into what is now diatomacious deposits. This is also known as Fullers earth and is used extenivly in the cosmetics industry and in phrmaceuticals as a filler.It is also used in the dry cleaning business to aide in the removal of stains. I was never aware of health a warinig regarding this product. Regarding "silicosis" which can be an invasive element in lung disesase, I can see the reason for health warnings. All things being said, I can see using diatomacious earth as a means of retaining water in a potting medium, but a form of moss (sphagnum) would be well considered. bob |
#3
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Sorry, Bob. Fullers Earth and diatomite are quite dissimilar.
OK, we all agree that diatomite is muds of prehistoric diatom's silica skeletons. As such, it's almost 100% crystalline silica. Fullers Earth, on the other hand, is a clay, made up of alumina, silica, iron oxides, lime, magnesia, and water. (My father thanks you all for letting me use my degrees in ceramic science and engineering) -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Artwork, Books and Lots of Free Info! "bob" wrote in message ups.com... Edmond Cormier wrote: If one makes a Search: Diatomite and silicosis, one finds numerous warnings by different U.S. govt. agencies on the dangers of diatomite and diatomaceous earth.Some people use diatomaceous earth as a bug killer thinking that it is not dangerous, like chemical pesticides. Masks, gloves and body covering are needed. Even workers handling bags of perlite are required to wear masks. Ed Cormier Ed; Diatomaceous earth is the skelital remains of diatoms. The diatoms are minute sea creatures that lived melenia ago, at the bottom of the then food chain and their skelital remains settled into what is now diatomacious deposits. This is also known as Fullers earth and is used extenivly in the cosmetics industry and in phrmaceuticals as a filler.It is also used in the dry cleaning business to aide in the removal of stains. I was never aware of health a warinig regarding this product. Regarding "silicosis" which can be an invasive element in lung disesase, I can see the reason for health warnings. All things being said, I can see using diatomacious earth as a means of retaining water in a potting medium, but a form of moss (sphagnum) would be well considered. bob |
#4
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So how'd you avoid becoming a dentist, Ray? Two of the biggest lecturers on
the dental circuit are PhDs in ceramic science and engineering...Ray Bertolotti and Alton Lacy. K Barrett "Ray" wrote in message ... [snip] (My father thanks you all for letting me use my degrees in ceramic science and engineering) Ray Barkalow - |
#5
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I went the refractories way, instead. (I've always been something of a
pyro...) My first job out of school was with Corning, in product development. Started out working on stuff for glass plant melters, developing products that we fused-cast at as much as 2700°C, and later went metallurgical (you've never been so nervous as when you've got to walk into an electric arc steel melter just after it's been poured to inspect the refractories...don't fall down!). Coincidentally though, the girlfriend (now wife) of a roommate at school when I switched majors to CerE became interested in teeth, and she now makes a large percentage of the prosthetic teeth in the southeast in her basement workshop. -- Ray Barkalow - First Rays Orchids - www.firstrays.com Plants, Supplies, Artwork, Books and Lots of Free Info! "K Barrett" wrote in message ... So how'd you avoid becoming a dentist, Ray? Two of the biggest lecturers on the dental circuit are PhDs in ceramic science and engineering...Ray Bertolotti and Alton Lacy. K Barrett "Ray" wrote in message ... [snip] (My father thanks you all for letting me use my degrees in ceramic science and engineering) Ray Barkalow - |
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