Cleaning crucibles : Hi. Does anybody have an easy way of cleaning the magnesium oxide out of crucibles after heating magnesium ribbon in them.
Chemical stores legislations and requirements: Hi fellow technicians.
Can anyone please let me know where to find up-to-date regulations for chemical stores setups/designs in schools?
I have some further questions regarding the mould investigations:
1. I prefer to double bag because we have had leaking bags in the past.
Radioisotopes: One of our teachers is asking if we are still able/allowed to buy radioisotopes.
potassium bromate: I am wondering if it is safe/acceptable to order potassium bromate in solid form for a visually impressive science reaction for open day purposes.
Chemical Waste from Ester Prac: I have previously been asked to dispose of the chemical waste from the ester prac by evaporating it on an absorbent material and disposing of this to landfill.
Organic chemistry: Could someone please advise about the safe storage and disposal of esters.
Australian Landforms: My Geography HOD asked me if I could access/buy any resources/texts on Australian landforms.
Dichromic acid glass cleaner waste: I use concentrated sulfuric acid and sodium dichromate in the glass cleaner I make.
Safety glasses: According to the new GHS standard, what is the approved standard for eye protection in schools: safety glasses or safety goggles?