>> On a related topic, I just got information from a chemist that the blue >> thing in silica -- the silica that we use for our photographic equipment >> -- is cobalt chloride which, he claims, is highly toxic. <clip> > >it is, but not all silica gel contains cobalt salts, only the blue/pink >stuff.. just a tip...if you have trouble getting the tan colored variety, go to a glasspane shop..they use that cilica gel by !the bucket! for double panels ... >not really, they're a good guide but have a look below for more LD50's to >put a perspective on things.. >Ethanol LD50 is debatably around 1000 >Asprin has a LD50 of 750 >Caffeine (orally) has an LD50 of 192mg/kg BW >potassium cyanide is around 6mg/kg it's been a while since i used my agronomist knowledge...herer it goes - LD50 means dose that gives you a fifty/fifty percent to live or die (in case you didn't know) - that dose is body weight depended...more weight means more resistance, but things change when body fat is put in the equation. fat generally absorbs and keeps the substances, so it takes alot more for the same effect, but being a storage point we start discussing long term effects such as accumulated fatal dosage - sometimes pesticides, insectides and especially fungisides are way less harmfull than the diluter, carrier, and all the rest substances are in the product....for example, some pyrethrines (deltamethrine) (whatever substance ends in -thrin in the household insecticides) are 7 times LESS lethal than table salt..it takes pounds of the pyrethrine to kill you, but by that time you'll be long filled up and permanently fixed by whatever else is in the product - for users of garden chemicals... a good intication of the toxicity of the -cide is the number on the name of the product (Malathion 40WP). this is the actual Malathion percent in the product. the less there is (smaller number) the greater the toxicity...industry does not wnat to produced killer bombs in the can or box for handlers safety reasons, ans that includes suicide usage... hard subject ot put the word enjoy in the end, kostas ====================================================== so... no matter what, CHEER UP MY FRIENDS! Life is too precious to jump the other side of the fence... kostas papakotas / clenched teeth photography http://groups.msn.com/clenchedteethphotography _____________________________________________________________________________________ http://www.mailbox.gr ÁðïêôÞóôå äùñåÜí ôï ìïíáäéêü óáò e-mail. http://www.thesuperweb.gr Website ìå ÁóöáëÝò Controlpanel áðü 6 Euro êáé äþñï ôï domain óáò!
