Australia's Science Forum

I notice on the Chemwatch MSDS pages they have an issue date and a print date.
I remember seeing somewhere the MSDS's have to be reprinted, is it every 3 or 5 years??
Robyn

Hi Pamela, I have been around long enough to still have some old Government Store chemicals on my shelves. I inherited them from the previous technician. When the bottles are empty, I keep them as a part of my 'museum' here, together with obsolete equipment. (PS they usually have bakelite lids which...

Dear Gillian, pleeeease don't use chromic acid (metal chromate + concentrated acid). It is banned in schools now as an "X" category chemical - highly toxic, carcinogen, forms explosive mixtures with combustible materials, etc. Once it is made up, it is very time consuming to get rid of. Ho...

Check out your compost bin, if you don't mind them being the 'wild' type. I have plenty buzzing around unfortunately...
Cheers,
~Robyn

Hi,
we're at Kenthurst. I have asked our Property Manager who we used when we were in this situation,
Cheers,
~Robyn

Hi All,
some time ago, I was looking for a current contact number for geological specimen supplies for our school kits. My old contact had retired.
I now have contact details of the new owner and would be pleased to supply anyone by PM if you would like them.
Cheers,
~Robyn

Hi Sassi,
do you have a geiger counter/timer? This will give you a radioactive readings. Your Physics teacher would know how to evaluate the readings.
~Robyn

Thanks, Louise - I forgot to say also to have your sound on, too.
Glad you like it
~Robyn

...to the Chemtalk family.
Click on reindeer...
Cheers,
~Robyn

Hi All,
I am looking for a supplier for the big periodic table posters (with or without pictures). Remember the ones that are approx. 2 x 1.5 metres? Ours are rather tired, stained or torn.
Cheers,
~Robyn

Hi Rosalie, I have been down that path of a wedding in Cairns with no refundable ticket!!!!!!!!!!! Went though and had fun with relatives with no pressure - a BBQ instead of a reception. I will be up your way at Keepit Dam from 6th - 12th December on a Uni field trip, hope you can give us nice weath...

Sorry,
did a search and together with acetone, all are worth a try....thanks.

~R

Hi All,
we have some permanent texta on lab coats. Striking whilst 'the iron is hot', does anyone have any idea how to remove it?
Bleaching doesn't help.....
~Robyn

Got it! Thanks.

Hi All,
can someone remind me how to access the Karmas? I have a need to award some to some worthy colleagues....
Cheers,
~Robyn

Hi Lyn,
Serrata have crude oil known as Petroleum crude....
~Robyn

Dear Rae,
Brilliant!!!
ie just typing in the molarity.....
Solves many of my labelling problems.
Thank you so much. Who would have thought it!!!
cheers,
~Robyn

Thank you for this very useful information, Richard.
I am impressed to be able to access the Merck Index online.
Our copy of the Merck which we purchased many years ago cost over $100!!
Cheers,
~Robyn

Hi All, I have lots of company. I am a laboratory technician by choice having studied at Granville tech in 1964 and Sydney tech thereafter. A holiday in 1977 for 8 years to have 2 children and then back to the job I love. I have worked at Macquarie Uni and for my present school for 24 years. It's a ...

Thanks Guys,
I am happiest with that option too. Now to convince the teachers..............
~R