Australia's Science Forum

WE do not have a microwave oven in our prep room. I also hate pressure cookers. So do not sterlize my agar plates.

Try soaking them in diluted HCL. WHen the students have experiments and they use HCL, I just put it in a large 2.5 bottle, labeled unknown CONC. HCL USED FOR CLEANING . I top it up with what ever HCL is left in beakers etc. And I use this HCL on hard stains, fill the test-tube up or beaker, bottle, ...

Perhaps a search in Chemtalk, may enlighten you. Junket, was taken off the shelves at one time. Junket can now be purchased at Health Food stores, Naturopaths, IGA Supermarkers. I have a fryer, should you wish to have a copy.

Please let me have your fax number.

I would suggest you put that glass container in the waste collection, to be picked up at a later date. Just label it with the contents. Our bible in NSW does not have Uranyl Nitrate in it, so I can not help you. HCL should be Neutralised first with Sodium Bicarbonate, then Dilute Down Sink to waste....

Yes thanks Robb, WHat would we do with out you

I have always put sulfuric Acid in our Copper Sulfate, I believe it keeps it longer. Or perhaps I have got it mixed up a little. Copper Sulfate pentahydrate has a much longer shelf life. But putting Acid into must do some thing else.

Hurry up Robb we need you

I also would like a copy of egg & pepsin experiment.

Our fax is 02 9823 7662 attn Sue in Science please

Thank you so much

What a great idea, it could just work. Well done

The head teacher before: purchased CASIO data loggers, the books had gone missing, along with a few pieces. When we rung CASIO up for help, well it just did not appear. No one could come out to help, NO information could be faxed to us. On checking at our local network meeting, 20 labbies, 15 said t...

Yes Ian's, problem is with the COMPUTER, not Data Harvest. They are very good, and simple to use.

Hi folks, I have a few containers, large clear glass ones, but the lids have cracked, and had to be tossed out. One is 3 litre container, does any one know of place to order just lids???

Seratta did have a special going on Data Harvest loggers. Very easy to use, set up, and understand. Give Seratta a call.

Regards

Hi, I purchased Electrodes new earlier this year, they do not fit very well, one side leaks. They are of the rubber style. The teachers like to do, it them selves, I guess they put the water in first, then add the conc Sulfuric Acid. Even by pushing the rubber electrodes up it still leaks. I really ...

I Have list fron Nov 1986, perhaps when it was first done. 1. Biotite Mica 2. Calcite 3.Olivine 4.talc 5. Coal 6. Granite 7. Basalt 8. Marble 9. Felsic Igneous rocks 1 Pegmatite & Rhyolite 10. Felsic igneous Rocks II Grandiorite, Porphyry, & Pumice I think it would be better if I fax you a c...

Great Tip Judy, Thanks

The students never use Conc Sulfuric Acid. It was only a Demo by the teachers.

Thanks Smiley, Its great to get your in put. This is the sort of items I am after.

Hi Liz,

Did you pay for the TWO different types?? Cd'S and web

How can I test Bromine water for freshness??

From all this lovely information, My head teacher thinks he will go with the CD's, has any one out their in Chem talk land, use the Pay web site????