Australia's Science Forum

Hi all,
Can anyone tell me how to edit print size of chemical labels? I use the GHS 14 small labels and trying to reduce the actual print size.

Thanks.

Ana

I attended a network meeting (Southwest area) for lab attendants and was informed that incidents /accidents in the lab such as burning, chemical toxicity or injury, electrical accidents incurred to students can be our responsibility together with the teacher in-charge. Which is why we need to be tra...

Hi all, I know everyone has been busy with pracs and assessments, I am. Just recently, a gas tubing from one of the group of students got ripped while they were doing a prac using the bunsen burner.Some groups had their burners on. Fortunately, I smelled the gas and immediately turned off the main s...

Thank you!!! You're all my angels!

Thank you for the suggestions! I am ordering now from Prof Bunsen. Where do you get the tube for the silicone?

Hi everyone,

Has someone used silicone (polymer-solid) and silicon (element-solid) for Senior Science and Chemistry? I need to get one for my teachers, if you know any supplier, please let me know...thank you!!!

Cheers,
Ana

Fume cupboards should be maintained and tested according to AS2243 Safety in Laboratories and WorkCover NSW. To ensure that there is adequate air flow it should be checked periodically. We have 2 fume cupboards and we have contracted Dynaflow to check once a year.

Hi all,

If anyone has bought silicon (granules or solid-not the powder) please let me know the supplier.

Thank you!

Ana

After knowing the cost ($170/10cm), my coordinator decided to use carbon!: )

Thank you for all the replies!Will see which one works.

Hi all, Has anyone done Chem 12 prac on (Sulfate Content of a Fertiliser)? We have problem filtering barium chloride solution as it goes through a sintered crucible porosity 4. I have asked a supplier for a finer filter crucible and there is a porosity 5, still thinking if I will order this as I'm n...

Thank you for the responses. We did use carbon rod but next time, my coordinator prefers platinum so I need to order one. I will try to get the wire from SSA.

Cheers,
Ana

Use Milton (dilute solution) to soak the stopper and tubing, overnight before using. No need to rinse. Check your broth, I use boiled chicken broth. takes time for reaction (usually 2-3 weeks) to be visible, when weather is too cold, I put them (set-up) in and out incubator to have a warmer temperat...

Hi everyone,

I need to order platinum metal (wire or rod) to be placed inside a U-tube for electrolysis experiment (Chem 12). Has anyone used this ? Do you know where to order this platinum?

Thanks and cheers,
Ana

Lugol's Iodine and iodine solution are almost similar-used to test for starch and for staining specimens for microscopic examination. however, this solution deteriorate with light and age, so fresh solutions are preferred or check your solutions if colour has not faded.Maximum shelf life is 1 yr.

Hi all, Can anyone share how you segregate your chemical waste solutions for disposal?I wanted to prepare waste bottle containers to keep waste chemical solutions for future collection but I am not sure how to classify or group them accordingly. Which solutions can and cannot be mixed? I used to hav...

Simple things to consider would be to read all labels to know whether the item is hazardous or not, so that staff/teachers would know if it would be safe for students to use. washing of hands after handling chemicals, working in ventilated area, avoid inhalation and cross contamination, washing of e...

Making PH Solutions To Make 200ml of each solution To make a 200ml solution of PH1 to PH7 PH1 = .1 mol HCL 220ml (Base Solution) PH2 = 20 ml .1 mol HCL + 180ml distilled Water + 200ml = PH2 PH3 = 20 ml PH2 Solution + 180ml distilled Water + 200ml = PH3 PH4 = 20 ml PH3 Solution + 180ml distilled Wate...

Hi margaret,
Our school deposited payment for my PD, it should be in the account by now but the papers will only be posted today. Will I still be accomodated?Sorry for this delay but our bursar has been away last week.

Thanks.
Ana

Some of the things we commonly use: Electricity equipments (globes on stand, powerpack,wires,voltmeters, ammeters, switch, resistors), Magnetism (magnets, compass, iron filings), Light (ray boxes, lenses, compass), wave and motion (slinky springs, meter rulers), basic equipments: scales (electronic)...