Rank: Guest
|
Posted By Merv Newman
http://www.slate.com/id/2218825/
This happened in America. Does it ring any bells for those in similar situations in the UK ?
I worked for more than 10 years as a lab technician, including a spell in a research lab handling some serious biohazards. Fortunately I only caught one non-fatal (evidently) disease. (let's not talk about the rabid rabbit)
I do hope some things, at least in the UK, have changed since.
Merv
|
|
|
|
Rank: Guest
|
Posted By stephen d clarke
Hi,
Interesting - not sure how she managed to pour a spoonful of butyl lithium though when I used it in the 70s we pressured the container with dry nitrogen and forced out the required quantity via a double ended flexible needle through rubber septa into a suitably purged vessel. Mind you I never tried to pour it out the merest drop left in the needle afterwards always went up in a flash.
Steve
|
|
|
|
Rank: Guest
|
Posted By Graham Bullough
For those who haven’t looked at the webpage quoted by Merv, it deals with the death of a young laboratory technician at an American university while decanting a spoonful of lithium compound from one container to another. Lithium and other elements such as sodium are pyrophoric, i.e. they burn spontaneously if exposed to air or, to be precise, the oxygen component of air.
The page relates how some of the rapidly burning compound landed on the technician’s sweatshirt made of synthetic flammable fabric and she suffered horrific burns from which she died 18 days later. If she had been wearing a lab coat perhaps it’s possible that she might have been able to take the coat off and thus reduced the extent and degree of the burns she received. However, this is debatable in view of the suddenness and ferocity of the situation which engulfed her.
A more fundamental aspect of the case is the technician’s apparent lack of knowledge of the compound’s dangerous property, especially the need to avoid any exposure of it to air. Though the page does not say so, it would be interesting to know if the container from which the technician took the spoonful bore any warning information. Even if it did have appropriate information, would it have meant anything to the technician?
I can’t answer Merv’s question as to whether or not the same sort of incident could happen in UK universities and similar establishments. However, it’s pertinent to mention that UK secondary school science departments generally teach pupils about a highly reactive bunch of elements, namely the alkalis. To my knowledge this includes a demonstration in which a very small amount of lithium is dropped onto water where it fizzes round at high speed as it reacts with air. The same is done with sodium, especially to demonstrate how much more reactive it is than lithium. (It's possible that the same is done with potassium which is even more reactive than sodium. Can anyone confirm or deny this?)
Thus, it is to be hoped that young people in the UK learn about such elements and their compounds, partly through seeing and remembering the impressive alkali demonstrations. No doubt their teachers enhance such learning by discussing the precautions taken for the demonstrations, including the use of only very small amounts. As an aside, CLEAPSS the School Science Service showed a video clip at one of its recent annual conferences of what happens when a large amount of lithium is exposed to air! I recall that the exercise was partly to help some schools dispose of excess amounts of lithium in one go at a suitably remote location.
My understanding is that pupils in American secondary schools see far fewer experiments than British pupils, whether as demonstrations conducted by teachers or ones they actually do themselves. This presumably stems from Americans having a more intense culture than Brits of compensation claims and risk avoidance. If my understanding is correct, then perhaps the limited extent of practical science teaching in America is partly to blame for the technician’s death.
|
|
|
|
Rank: Guest
|
Posted By ScotsAM
When I was doing my standard grade (o-level) chemistry, Our teacher added sodium then potassium to water to demonstrate the reactivity. They also cut it with a knife in order to show us how quickly it reacts with air.
I do rememember at highschool making aspirin using different acids to catalyse the reactions.
When adding water to concentrated nitric acid (or vice-versa)I added far too much too quickly and ended up with an acidic cloud going into my eyes. Very painful but no long term harm sustained. However I was unsupervised at the time and was unaware how quickly chemcial/water would boil. Also the safety glasses were no protection at all.
I think it's possible the same things can happen if people are poorly trained or ill-informed of the hazards present.
I couldn't comment on the difference in culture between america and britain in this respect though.
|
|
|
|
Rank: Guest
|
Posted By Raymond Rapp
The university was fined $31,875 for multiple serious violations...are you kidding?
|
|
|
|
Rank: Guest
|
Posted By Andrew Kurdziel
I work in a government R&D lab where we handle some particularly nasty substances. I am appalled but not surprised by this story. The issue is that in the US research labs are regarded as outside the normal H&S system, same as the UK before the Health and Safety at Work Act 1974. Here all the normal rules apply, including COSHH. In our labs the labworkers themselves are trained to do the risk assessments and the manager is responsible for ensuring that any controls are applied. In the States as far as I know there is no requirement for risk assessments, all that you need to do is to post the MSDS in the work place, which is not a lot of use.
We have students working in the labs and they are treated just like our employees.
In addition we supply all our staff with suitable PPE; in the US staff still have to buy there own PPE in some circumstances.
Our ‘old guard’ regard H&S as interference etc. but the new ones coming through the universities seem to be more H&S aware and understand risk assessments so the things are getting better.
|
|
|
|
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.