is poison still poisonous past its expiration date?
95495
That depends on what the poison is and how it is stored.\n\nMany oganic poisons like most common insecticides and herbicides break down over time and eventually lose their toxicity. They become less poisonous, meaning you need a bigger dose, but you'd have to wait years after the expiration before it stopped working altogether.\n\nSome organic poisons have an expiry date for excatly the opposite reason. They break down, but they break down into  more poisonous substances. Some herbicides for example gradually decay and produce dioxanes, some pesticides break down when exposed to water and produce a very potent volatile nerve gas. You can usually spot these poisons beause the expiration date is very short and is printed as two dates: expiration date and shelf life from date of opening.\n\nThe inorganic poisons like arsenic or mercury compounds tend not to break down as such. They have expiration dates because they absorb moisture from the air and change form chemically. That makes then harder to use and it also means they take longer to work. Instead of killing the animal within hours it might take days or months. Ironically the chemically altered form of arsenic is often more deadly insofar as it requires a smaller dose to be lethal. It's just less useful because it takes a long time to act.\n\n\nSo the asnwer is, it can become less poisonous, it can become more posionous, but poison is always poison.
559170
Its poisonous. Its multiple hydroxyl groups can pass it off as a sugar into tissues where it can wreck havoc.
555230
Usually they don't expire.
971555
Not all poisons are proteins by any means.  \n\nThe answer really would depend on the poison, but for most of them, they would be rendered non-poisonous after they had burned.\n\n(That doesn't mean it would  be a good idea to burn poisons in a barrel in your backyard or anything,)
249599
The minerals in the vitamin tablet don't go bad. The vitamins don't go dead immediately when they reach their expiration date. If they have been kept in a cool dry place they may still be good or maybe just less potent.
736421
one of these probably has the answer\nhttp://scholar.google.com/scholar?hl=en&lr=&safe=off&q=%22secondary+compounds%22+and+%22leaf+longevity%22&btnG=Search
221422
Tylenol past expiration will not harm you, but it might be sub-potent.  The expiration date is not when medication goes bad, but it is 100 per cent potent at least to the expiration date.  Tetracycline and its cousins (Doxycycline, etc) should NOT be taken past expiration.  They can cause liver damage.  Those are the only drugs which have adverse effects when expired.
1058145
No, My little girl made my little boy drank perfume before.I called Poison Control and they said that he would be fine.So you don't have anything to worry about.
1150789
check the expiration date on the bottle
301551
try this website\nhttp://www.wonderquest.com/frog-poison.htm
263020
Tobacco is a poison. If enough of it is ingested in can kill.
65931
Depends upon the product.  Some contain preservatives, some do not.\nSodium copper chlorophyllin derived from the alfalfa plant is relatively stable.  Some products add methylparaben and propylparaben (derived from benzoic acid) to preserve the product.  These solution have shelf lives of up to one year.\nExperiments with liquid chlorophyll solution show that even when they decompose (stored in heat and light), they form no toxic products.\nYour product may have an expiration date on it.  The solution should be useable for at least six months past that date.
841750
There should be a 'best before' date on it somewhere, so check it out carefully. If there isn't you can e-mail the producer, give the product number and they will tell you if it has expired or not. That said, whey protein lasts a pretty long time. Was it unopened, or had it been partially used? If it was sealed, it might still be good, but if it had been opened it's been subject to oxidation, and might be a little rancid. It's hard to say, really, without knowing it's condition, but do check for that 'best before' number, because it should be on it somewhere.
308085
Yes. If its after a year, then I would throw it out.  Usually there is an expiration date somewhere on the bottle. But it doesn't work if it is old.  Hope this helps!
1003889
I don't think it will really expire.  My parents have bottles in their liquor cabinet that are twenty years old and are still good.  Keep it tightly closed and in the freezer.  It is much better ice cold anyway.
263290
Depends on the toxin. Some are absorbed through the skin, others can be inhaled,or consumed
742773
yes they do expire.  Not only  can they become contaminated over time as people forget to close the cap correctly etc.  the manufacturer will list an expiry date on the label