Australia's Science Forum

We have found Bill from MTA so good to work with. I simply send him a list of my requirements, he sends me back a quote for the items. I have had a few items that were not good quality, a phone call copy of invoice and replaced instantly. MTA are probably just like everywhere else at the moment and ...

My guys gave me a cake this morning and a huge thank you, and i was not expecting this so it was a huge surprise. :coffee: :w00t: I do not really believe in these sort of days/weeks as we are here doing our job, and we get paid to do it. Every day as i leave whatever staff are in the staff room alwa...

We are still doing this as we always do. I think i am lucky as i have very very good Biology teachers who are strict with all experiments. I sometimes think that this whole cleaning situation is funny in the sense that what we have to teacher people to wash their hands after going to the toilet. You...

Anhydrous versions have different MW. That is why it is best to use the MW on the bottle .That way you know it matches what you have .Some recipe books don't state which type . tin chloride.jpg yes i think i will just go off my actual jars, thought there might have been a easier way. Funny how it i...

shellythenewlabby wrote: ↑20 Aug 2020, 11:45 Hi Kimmy
I usually use this website if i get stuck and have found it good. Hope it helps

https://www.sigmaaldrich.com/chemistry/ ... lator.html

thank you

If in doubt, make your own calculations using the molecular weight of the chemical. I have to rush off to a meeting now but I'm sure someone else can explain. Once you do this, you'll wonder why you ever had to look it up! :thumbup: Yes i know how to do this but even these are different on differen...

OK i am doing up a new information booklet for the common chemicals i use at school. This is just for myself for making up solutions of my common chemcials. So many sites have different information on them for the strength of chemicals. What is the best site to get accurate information. Even between...

I absolutely love mine. My whole chemical store room in made of Gratnell shelving and drawers. So easy to adjust height with different size containers. So good for dropper bottles and solutions.
Ill add some photos after.

Labbie wrote: ↑28 Jul 2020, 14:01 That's a great idea Kimmy

yes when i read it i thought, wow what a great idea.

i know this is a old old post but i have just came across a great idea of how to prepare the squares for the diffusion experiment.
K mart have silicone ice-cube molds that are perfect for the 3cm square cubes then students can cut another one down to get a 2cm square and 1cm square.

This is also a way that you can do the diffusion Agar 1. Measure out 1.6 g of agar-agar and 200 ml water. Mix them together with a whisk or fork in a large microwave-safe bowl. 2. Heat the solution in the microwave on high for 30 seconds. Remove to a heat-safe surface using a hot pad or oven mitts, ...

We use a mixture of both glass and plastic dropper bottles. The only chemical that is a must for me with the amber glass bottles is Silver Nitrate and Iodine Solutions. '
I have got my plastic bottles from both MTA and Westlab.

maybe it is Iodine (Potassium Iodide)

Fake Blood Recipe

175 g Cornflour
75 ml Water
175 ml Golden Syrup
Red food colouring
Green food colouring

Mix cornflour and water
Add golden syrup
Add the red and green food colouring (you will need to play around with quantities or these until you get the desired colour).

My question to that Kimmy is, has anyone been able to source the decanoic acid? I'm either having a bad senior moment or I am just useless, but none of my regular suppliers have this... :crazy: :crazy: :crazy: Mine is older stock but still fine to use. I think it came from either Chem Supply or Ser...

Our Senior chemistry are doing the Preparing artificial fragrances and flavours experiment.
Has anyone made the salicylic acid or the decanoic acid stock solution.

Any recipes would be great - thanks in advance.

i go under so many different name but basically as far as i am concerned i am simple the Science Assistant. On all paper work to do with the school i am a SAO (School admin Assistant). Some days when making up electrical wires etc i feel like i am a electrician, than the next day making Agar Plates ...

Never heard of a Dissection Policy?
Have any other schools got one of these?

Have learnt so much from all the wonderful members.

Happy Anniversary to me today.
Joined on 1st June 2006.

Thanks for all the advice and great quick tips that we have all shared over the years.