Australia's Science Forum

I had forgotton about Nappy Sand, Silly me, but we have run out of that. So I will have a go with Sodium Hydroxide, I have some Old 3M which I could use up, as a cleaning Acid. Thank you again

Yes folks all acids. My husband works for Fire Brigade, it is in Plastic for transport reasons. And should be put into amber glass on arrival. I was not sure myself, "Should the truck have an accident, it is less glass to clean up for the poor over worked Fire person's, can not say Fire man any...

One lovely teacher, has some burnt sugar in our new test tubes, about 22 of them. Any ideas how to remove this mess

I have tried really HOT HOT water, & soaked over night with oxalate acid. Help

We have only wooden shelves, we put a slab of glass down, then the items on top. Old pieces of glass, or even a glass tray. We have our Class 8 in glass trays on wooden shelves, its the best we can do for now.

I agree go glass all the way, plastic can go brittle at any time.

Safety reason's stick to GLASS.

Issco have minigrid slides 5 for $13.00 or 10 for $12.00

Southern Biology, has never let us down yet.

Had quick look on Chem watch, No Packing Group & No DG Class,

My self I would put a GREEN dot on to it.

See what you think, perhaps others out their in NSW could help.

Well I be __________________ What can we say Ian, What does the MSDS say, some times you can work it out, by what they say.
Good luck

Yes I am sure they suggested useing Oven bags, tie the agar plates up, so their is no mess. And put them into the Microwave, but I am unsure how long for.

It is a very good rule to always use Distilled water for Diluting anything. It is one of the purest waters we can use.

I think in this case Breakdown, means if you are going to Dilute DOWN to another M. Say you had 6M eg 500ml of 6M add 2.500ml of distilled water for 1M.

I did not know they got a Public Holiday, perhaps they miss out on some thing else??

Sorry you also asked what is the difference between.

Tribasic has 3 Replaceable Hydrogen atoms
MonoBasic has 1 Replaceable Hydrogen atom
Di Basic has 2 Replaceable Hydrogen atoms

So each one would have a different Molecular weight

Do that help any more

We have been thinking of purchasing a Microwave for the prep room. But on reading that they do not sterlize agar plates. Has any one else heard this one??????????

From the CSIS Voleume 2 appendices page 38 Ammonium Dihydrogen Phosphate is a mineral nutrient for yeast culture media. It is also known as Ammonium Dihydrogen Orthophosphate Ammonium biphosphate, & Ammonium phosphate Monobasic, Cas No 7722-76-1. So perhaps these names where once used. Hope this...

Any one needing a lift from Hoxton Park, Hinchinbrook area. I have one space left in our car. We car pool. Going both days Thurs & Friday.

sorry forgot to add, x-rays in glass windows can be interesting. They only last about a term in summer then they go hard and crack up. A bit like me. Photo's of experments that have been done. Some times doctors rooms, throw out posters of Lungs etc, could always ask?? I think that is all for now.

Frog's lizards, snakes in persertives in a jar, also seems also bring the students to the glass cabnet to look see. These cabnets are locked, so we do not seems to have any thing go missing. Dried flowers cut or pressed ( although they dry out) do add a little interest. Their are some really good po...

So far so good. Remove the drying trays from the oven while still hot, and with forceps, place the strips in a air tight wide neck jar, amber glass is better, with a good lid. Put some Silica in the bottom, Blue & Pink beads, they will help keep the Moisturiser out of the Cobalt Chloride paper. ...