Search found 27 matches
- 26 Apr 2023, 11:20
- Forum: Chemistry and Labware - General
- Topic: Bunsen Burner storage
- Replies: 17
- Views: 18038
Re: Bunsen Burner storage
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...
- 05 Apr 2023, 07:59
- Forum: Chemistry and Labware - General
- Topic: Chemicals not sold by Westlab or other common suppliers
- Replies: 13
- Views: 8743
Re: Chemicals not sold by Westlab or other common suppliers
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...
- 24 Feb 2023, 09:49
- Forum: Chemistry and Labware - General
- Topic: standardized NaOH
- Replies: 20
- Views: 14707
Re: standardized NaOH
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...
- 23 Nov 2022, 13:33
- Forum: Miscellaneous
- Topic: looking for slater bugs-investigating science
- Replies: 2
- Views: 5278
looking for slater bugs-investigating science
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...
- 27 Oct 2022, 13:19
- Forum: Recipes and Pracs
- Topic: Preserved specimens.
- Replies: 43
- Views: 28430
Re: Preserving Animals
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...
- 02 May 2018, 09:53
- Forum: Chemistry and Labware - General
- Topic: Digital Electronic Balance model 20002 purchased 2014 from Serrata
- Replies: 3
- Views: 4888
Re: Digital Electronic Balance model 20002 purchased 2014 from Serrata
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
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
- 20 Feb 2018, 11:14
- Forum: Safety with Chemicals
- Topic: Barium Nitrate
- Replies: 5
- Views: 5313
Re: Barium Nitrate
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
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
- 12 Feb 2018, 18:29
- Forum: Biology, Physics...
- Topic: Peptone
- Replies: 2
- Views: 4880
Re: Peptone
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...
- 23 Feb 2017, 12:12
- Forum: Safety with Chemicals
- Topic: Lab coats
- Replies: 10
- Views: 5309
Re: Lab coats
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
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
- 19 Oct 2016, 11:24
- Forum: Safety with Chemicals
- Topic: URGENT request for help!
- Replies: 21
- Views: 19326
Re: URGENT request for help!
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...
- 24 May 2016, 11:41
- Forum: Safety with Chemicals
- Topic: Register of Hazardous Chemicals
- Replies: 15
- Views: 6563
Re: Register of Hazardous Chemicals
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...
- 19 May 2016, 08:49
- Forum: Recipes and Pracs
- Topic: sodium phoshate =sodium orthophosphate
- Replies: 3
- Views: 2641
sodium phoshate =sodium orthophosphate
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.
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.
- 15 Sep 2015, 12:00
- Forum: Safety with Chemicals
- Topic: Gloves
- Replies: 2
- Views: 2130
Re: Gloves
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...
- 09 Jun 2015, 11:38
- Forum: Announcements
- Topic: THIS IS THE PLACE FOR A CASUAL LIST
- Replies: 48
- Views: 41494
Re: THIS IS THE PLACE FOR A CASUAL LIST
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
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
- 05 Jun 2015, 08:13
- Forum: Announcements
- Topic: Pasteur Experiment
- Replies: 19
- Views: 15473
Re: Pasteur Experiment
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...
- 19 May 2015, 13:15
- Forum: Chemistry and Labware - General
- Topic: How do you test if H2O2 is still "fresh"?
- Replies: 2
- Views: 2489
Re: How do you test if H2O2 is still "fresh"?
put some manganese dioxide in it, if it fizzes it's ok
shaz
shaz
- 27 Mar 2015, 11:18
- Forum: Safety with Chemicals
- Topic: Organic Waste Bottle
- Replies: 2
- Views: 2158
Re: Organic Waste Bottle
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...
- 10 Feb 2015, 11:51
- Forum: Chemistry and Labware - General
- Topic: GHS labels
- Replies: 22
- Views: 10323
Re: GHS labels
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
shaz
- 05 Feb 2015, 12:26
- Forum: Chemistry and Labware - General
- Topic: filter papers
- Replies: 6
- Views: 4002
Re: filter papers
Hi
I have been using them and they are fine
shaz
I have been using them and they are fine
shaz
- 12 Nov 2014, 07:14
- Forum: Chemistry and Labware - General
- Topic: spirit burners
- Replies: 9
- Views: 5477
spirit burners
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
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