Recent content by Tech A

I've had a fair few students sent for those!

Hi Emily, I'm sure I read somewhere that organic garlic isn't irratiated :)

We have a small container of mercury, also kept in the toxics cupboard, which comes out for a viewing every now and then. We also have a tray of jars containing a mole of various elements and compounds. And a jar containing a preserved mole...! No idea where it came from as it's been here longer...

What do you use to dissolve them, then what do you use as the solvent to run it?

We have trolleys like this, not for power packs but one for storing/moving microscopes and 2 more for generally moving equipment to classrooms. Have found them to be very sturdy and easy to manouver, I'm sure they handle power packs without a problem. Several places supply them so shop around...

We used Chemgo last year too, very good service and the cheapest quote. Also didn't have a problem with some 'unknowns', or with the odd bottle of something we came across that wasn't on the list for the quote ;)

Snap! Some mornings it is 11 C (16 C is the legal min) in the prep room when I get in, so I keep my coat on until it warms up a bit. Problem is due to the boilers not working properly, but the whole school is having the heating revamped. As the boilers supplying the science dept are a problem...

It only takes 5g of calcium hydroxide to make 2.5l, I've always made my own with no problems!

Our recent delivery (from Ice Supply) came with an advice sheet, saying do not place in a fridge or freezer! Store in an insulated container in a well ventilated area.