Australia's Science Forum

Hello, Our labs have benches with cupboards where we keep Bunsen burners, tripod, gauze, metal tongs, test tube racks and power supply per bench. I have never stored them separately. I guess it depends on how many labs/classes you have and if your benches have storage space. Maybe making a rack of s...

Hello, I would just answer his question with a no we do not have those chemicals.I agree with everyone else and this is the site to ask these questions, please think twice about purchasing expensive chemicals that are not used regularly. You will get teachers come through from time to time particula...

Year 12 Chemistry in Focus page 196 explains primary standard solutions. The students usually make their own when performing a titration. If the teacher is trying to save time then yeah make it up as analytical as you can, label primary standard solution and the students will titrate this solution a...

Hello, I have been asked to resource some 'slater bugs' for investigating Science next year. Apparently it is the first dot point and the teacher wants to have it ready as soon as school starts. I have looked online at some 'bug stores' but cannot find them, anyone have any ideas apart from me tryin...

Science Assist has information on Biological preserved specimens specifically the risk with preserved specimens in formaldehyde. 70% ethanol is a possibility, you would have to complete a risk assessment making sure the the specimen would be stored in a suitable container, label indicating the solut...

Hello,
I would encourage you to phone Michael at Serrata , they are great over the phone. This does sound like there may be a problem.
regards
shaz

Hello
I just made up some labels in Risk assess for Ba(NO3) 1M and it labels it as a green dot. I'm going with that as it has been updated with the GHS guidelines.
regards
shaz

you can use any one from them (peptone, tryptone, tryptone peptone, trypticase, and trypticase peptone) as these all are partial digested proteins. They may be different in form and some of composition but they all are rich in simple proteins i.e. peptides (not complexed) as they are partial digeste...

Hi,
We have them available in the uniform shop if anybody would like to purchase one. The year 11 and 12 Chemistry and Biology usually take up the offer but i don't think they are necessary for the other years.
shaz

Hello Kris, Any body reading this would feel nothing but empathy for you,I am sorry .Apart from you talking to the powers that be,I would like to encourage you to maybe start small. In the middle of their staff room table or somewhere central can you put a pile of paper order forms with pens and may...

Hello, I never just print a blank label, I will edit and put in risk phrases for example 0.1 M NAOH- R36/38 Irritating to skin and eyes and then in safety phrases S24/25 Avoid contact with skin and eyes S26 In case of contact with eyes, rinse immediately with plenty of water, if irritation seek medi...

Good morning,
Year 12 Chemistry prac asks for Na 3Po4 sodium phospahte, am using Na2HPO4 sodium orthophosphate. Would any one know if you can purchase sodium phosphate or will it always be orthophosphate because as soon as you put it with water it will add the hydrogen anyway.

Hello, I use the disposable Nitrile gloves for working generally with chemicals Serrata code 1016057 (that's for large) , if I need gloves for concentrated chemicals I have a heavy duty pair ( black rubber gloves)I'm pretty sure I purchased those from Bunnings? for washing up I just use the rubber p...

Hello,
Thomas Hassall Anglican College located in Middleton Grange is seeking a Part-time (2 days) Lab Assistant to commence at the College in Term 3. A full job description is available on the College website: www.thac.nsw.edu.au\employment
thanks
shaz

hello, I use the broth recipe in the laboratory book page 198 and it has always been successful after a few days for me. 10g beef extract 10g peptone 5g sodium chloride 1 litre distilled water 0.1M sodium hydroxide and 0.1M hydrochloric acid dissolve ingredients in water by heating, adjust pH to 8-8...

put some manganese dioxide in it, if it fizzes it's ok
shaz

Hi Merilyn, Hydrocarbons,alcohol,ketones,esters and heterocyclics are classified as #23 in the disposal of wastes in CSIS. Evaporation is fine but should only be for small liquid quantities < 50ml, larger quantities need to be absorbed onto vermiculite or cat litter and scooped up for collection. Or...

Hi, I don't have access to a colour printer in Science ,so I email it to admin and they print it for me in colour however if I am in a hurry I just print black and white and if need be colour in/outline the areas with a red texta.
shaz

Hi
I have been using them and they are fine
shaz

Hello everyone,
Just interested to know -after you use your spirit burners in a prac do you store them 'as is' in your chemical cupboard, do you tip leftovers into waste bottles and wash them out? Do tell
shaz