Australia's Science Forum

Thanks Lyn but thats what ive been using, I tried an ordinary bunsen too! Thats why I couldnt understand what I was doing wrong but as suggested I think it may be the gas Thanks for helping

Maybe thats my problem too, they will soften abit but not enough to be a blob at the bottom, only enough to get rid of sharp edges. Will follow up my gas supply, I have noticed I cant get a nice strong blue flame, lots of orange happening.Thanks for the help.

:-( Im just about going stir crazy!!!Ive been trying to fire polish glass rods for about a week now! It does not matter which type of burner, how long or where I put it in the flame they will not go red and melt!! Do they make glass rods out of borosilicate glass :? I just found some rods and cut th...

Boiling works well it just stinks

Yes im very excited I just hope Im still here to see it all as Im just replacing Mylita who has had a bub and thus is on maternity leave, some might say she timed it well so I get to do the clean out and then she gets the lovely new rooms !!!

Sorry Trish but from what Ive been told we are responsible for all the equipment and any furniture we want to keep. I was also told before the meeting it may all start in the holidays, but the principle and head teacher who went to the meeting have said this is not the case, apparently we get a visi...

Love your idea Smiley but only a temp and hoping for further work next year!!!!! Thanks all for the advice I had thought of soaking it in water, I dont want to keep it just dispose of it safely so shall follow your instructions Cheers Maria

Okay another question, how do I dispose of an unspent rocket engine containing gunpowder? Any rules re this, it is damaged so cant be used thanks Maria

Hi I just bought pH buffer capsules (Merck) as I hope they last longer in storage, after taking the capsule out of the bottle I resealed it with lab film and sticky tape! Each capsule makes 100mls buffer solution but no they are not coloured. Hope that helps...Maria

#-o Im very!!!!!new at this, I have to make up some pH buffers to calibrate our pH probe, I purchased buffer capsules of pH 4 and 7, the instructiions to make up specify CO2 free water, is my distilled water good enough??? the chem teacher claims its pH is too low but not sure how he confirmed this ...