Australia's Science Forum

Hi All Last day before holidays. Alarms sounding with an announcement, all lights off, students quieter than normal. Lockdown drill done. Lockout drill will be after lunch. Students and staff will be noisy and rushing around in their classes on set pathways to oval for roll call and then back to cla...

Hi All We areabout to do this prac Tuesday. The reference is: Nature of Biology 2 Activity Manual p16. It calls for test tubes and corks, pond water, phenol red indicator, source of Carbon dioxide gas, ammonia solution, Elodea substitute, pH paper. Has anyone done this prac? It only needs 1-2 drops ...

No. .... still a work in progress.

Good Morning All,

We are going to have an inservice chemical training session for staff next week (to update chemical training according to CSIS requirements).

Has anyone done this recently and have you any tips please?

Would welcome all comments.

Thanks.

I am trying to get a label for 0.1M NaOH. Done lots of labels in past but today when I select what I want Chemwatch jumps to MSDS! grrrr

Serrata and Office Max have the cheaper brands. However, Office Max still show 'Double Ring' photo with new product description.

Livingstone still sell Double Ring brand.

Rita

Thank You. I can save a bit of money over the year.

Rita

I am in Nowra and I use Premier Genetics and Livestock Solutions ph 44227247. We order 10 litres (mainly year 12 physics) and it is delivered in a Dewar. Another local school uses them also. They have a supply run that goes up and down the coast. Don't know if it goes to the highlands. Maybe worth a...

Happy 2015 to All !

Has anyone tried the new brand 'XinXing' filter papers? They are about half price of other brands and I was wondering if they are of similar quality.

Thanks

Already spoken to IT about borrowing a laptop and Admin Leader if I can have a day off later as it is on in my holidays.
So, yes, I am interested.

I have a friend working in industry and they use "information safe". It can apply to business and home. May be worth a look.

www.infosafe.com (I think that's the website).

Just looked up Prof Bunsen website.

Shock, horror.....he is closing down his shop.

I will have to get in now for some Christmas presents.

Good Morning All

Does anyone use Sodium Polyacrylate to make fake snow. Teacher is interested but not in the gel type.

Who supplied it and what was approximate cost, please?

Thanks

We get ours from Hepworths ....Hepworth Industrial Wear Pty Ltd at Ingleburn c.$2.80. Only problem is student abuse (drawing eyes, melting arms in bunsen).

We have an acid cabinet which stores flammables on top shelves and acids on bottom shelves. The covers on the spirit burners always show signs of corrosion and always need cleaning. Have been unable to find a supplier for cover replacements...only seem to sell complete burners. Tipping out after use...

Thank you for the recipe, much appreciated.

Hi All I have just been asked to prepare prac for making nylon using trichloroethane and sebacoyl chloride. Is this a demo only prac? Have noticed other labbies referring to adipic acid which we don't have. What method(s) are acceptable please? Where would I find a method using adipic acid? Hope you...

Hi I found via google this website http://www.chemistry-infolab.com/ph_indicators.html It has recipes for making most indicators. Phenol red Dissolve 0.1g. in 100 ml. of 20% ethanol, or dissolve 0.04g in 1.13 ml of 0.1M sodium hydroxide and make up to 100 ml. pH =6.4 - 8.2; color change = yellow to ...

We haven't had this done in years....say it is too costly.
I just found a power pack with a tag. It has test date Nov 04 and test due Nov 06.

Solar Grasshopper Jitterbugs .....did students make them in class or was it a lunch time activity/display?.....do you disassemble before each class? how many did you have? The students would love them here. I hadn't heard of them before today. Had a quick look on google and found some on sale in Ame...