Search found 719 matches
- 12 Sep 2022, 11:23
- Forum: Sourcing Materials & Eq Repairs
- Topic: Amber dropper bottles
- Replies: 19
- Views: 7790
Re: Amber dropper bottles
I've got mine from Haynes recently . I got some from Serata MTA but they have a funny size dropper lid that doesn't fit anything else. The Black Silicone teats from MTA are quite resistant to most things except acid . They quickly perish with Acid . The Red Rubber ones are better for Acid still . So...
- 10 Sep 2022, 08:46
- Forum: Safety with Chemicals
- Topic: School culture concerning food.
- Replies: 17
- Views: 6689
Re: School culture concerning food.
There . Apparently every-time she turned her back to write stuff , they’d start throwing stuff .
Back on topic ,
We make Sherbet in the Labs . Have a dedicated set of morter and pestles and stuff thats kept in the staff room for this prac . Kids get to take it home to eat .
Back on topic ,
We make Sherbet in the Labs . Have a dedicated set of morter and pestles and stuff thats kept in the staff room for this prac . Kids get to take it home to eat .
- 09 Sep 2022, 13:53
- Forum: Safety with Chemicals
- Topic: School culture concerning food.
- Replies: 17
- Views: 6689
Re: School culture concerning food.
I wish I had taken a picture of one of our Labs yesterday . It was a down right disgrace. Some kid had pulled out a Peanut butter Sanga ....like those are banned anyway ....and then proceeds to smear it around the classroom . Then some other kid pulls out an apple , takes bites and spits them everyw...
- 01 Sep 2022, 13:42
- Forum: Miscellaneous
- Topic: equipment with cords
- Replies: 4
- Views: 5097
Re: equipment with cords
Leave it plugged in .
Plugging and unplugging usually involves wiggling and wiggling loosens and weakens things .
Also when the Tag tester comes , how will he print "electronic Balance " on the Label if its just a loose cable .
Plugging and unplugging usually involves wiggling and wiggling loosens and weakens things .
Also when the Tag tester comes , how will he print "electronic Balance " on the Label if its just a loose cable .
- 01 Sep 2022, 10:19
- Forum: Biology, Physics...
- Topic: waste from dissections
- Replies: 9
- Views: 5739
Re: waste from dissections
If the teachers don't want to take it home for their dogs , it goes in the skip . Same logic as Merilyn . Bins stink long before they are collected and my stuff probably doesn't make it dramatically worse .
- 29 Aug 2022, 09:11
- Forum: Safety with Chemicals
- Topic: Ferrous sulphide sticks
- Replies: 6
- Views: 5930
Re: Ferrous sulphide sticks
Wow, good find. We have one, its the same size as our flam liq, I think 200L approx. It was here when I got here. I think it's great, stores everything and easy to find it all. Thanks labbassistant I told SAM about all this and with out question and the usual rant about having no money ,BOOM , Flam...
- 26 Aug 2022, 14:29
- Forum: Safety with Chemicals
- Topic: Ferrous sulphide sticks
- Replies: 6
- Views: 5930
Re: Ferrous sulphide sticks
Well I'm really having a fine time in the Chem store . After cleaning up a busted jar of Magnesium Powder , I went looking for all the Flammable solids and making a collection of them when I discovered two jars of Ferrous Sulfide have expanded and cracked the jars . I'm getting quite nervous that la...
- 25 Aug 2022, 14:07
- Forum: Chemistry and Labware - General
- Topic: Plastic bottles/jerry cans for solutions
- Replies: 24
- Views: 12954
Re: Plastic bottles/jerry cans for solutions
Found some more disintegrating Jerry Cans . These ones looked OK until I gave them a squeeze .They crumbled instead of squishing. Doubt it was 0.001HCl that did this , perhaps it had something else in it before it was repurposed . Be wary folk , seems these things may have a time limit . BTW , these...
- 23 Aug 2022, 14:42
- Forum: Safety with Chemicals
- Topic: Magnesium powder for yr 12 Chemistry: Riskasses
- Replies: 11
- Views: 8124
Re: Magnesium powder for yr 12 Chemistry: Riskasses
WOW Bigmack, the things you so find. Yup :crazy: ....this is what happens when you inherit someone's job that liked to keep everything :whistling2: So the I discovered the practicalities of disposing of 100gms of this powder . Firstly , its this much . 100gm Magnesium Powder.jpg I started with abou...
- 23 Aug 2022, 10:12
- Forum: Safety with Chemicals
- Topic: Magnesium powder for yr 12 Chemistry: Riskasses
- Replies: 11
- Views: 8124
Re: Magnesium powder for yr 12 Chemistry: Riskasses
Just discovered this . Needless to say I'm a bit nervous dealing with it . obviously it has slowly absorbed moisture as our Chem store is cold and damp and has expanded and cracked the jar . There is now a split about 1-2mm wide that is exposing more air and moisture . I'm going to keep a small amou...
- 18 Aug 2022, 12:10
- Forum: Safety with Chemicals
- Topic: storage of corrosives
- Replies: 9
- Views: 9719
Re: storage of corrosives
Scrap metal sounds the go to me . Especially if your local Tip takes it for free . You'd most likely have to pay for general waste there .
I think I would ask the GA to get rid of it . Not your problem .
I think I would ask the GA to get rid of it . Not your problem .
- 16 Aug 2022, 09:05
- Forum: Sourcing Materials & Eq Repairs
- Topic: Instead of Matches.......
- Replies: 20
- Views: 13357
- 09 Aug 2022, 13:56
- Forum: Sourcing Materials & Eq Repairs
- Topic: Brains, hearts, kidneys & plucks
- Replies: 13
- Views: 9533
Re: Brains, hearts, kidneys & plucks
Common problem, Bigmack. I think the abattoirs have to do this to check for disease/parasites. I think you are right Merilyn and ottenC. Certainly all the ones I've got that were sold through butchers for Human consumption had been sliced like that . Interesting that these I ordered as offal were n...
- 09 Aug 2022, 12:20
- Forum: Sourcing Materials & Eq Repairs
- Topic: Instead of Matches.......
- Replies: 20
- Views: 13357
Re: Instead of Matches.......
Our Chem teacher has always used Lighters . This is a guy that doesn't trust a kid for two seconds . He says kids are stupid and they only use a lighter for a few seconds before it gets too hot to play with . Self regulating safety . He is amazed at how kids use lighters upside down . Regardless , I...
- 09 Aug 2022, 12:09
- Forum: Sourcing Materials & Eq Repairs
- Topic: Brains, hearts, kidneys & plucks
- Replies: 13
- Views: 9533
Re: Brains, hearts, kidneys & plucks
Just got my parcel of Hearts with attachments from the local Abattoir.
Seems like the Slaughterman forgot who was meant to be doing the dissections
Oh well, I'm pleased I asked for a few extras .
Seems like the Slaughterman forgot who was meant to be doing the dissections
Oh well, I'm pleased I asked for a few extras .
- 09 Aug 2022, 09:48
- Forum: Recipes and Pracs
- Topic: Nail Biting
- Replies: 19
- Views: 7568
Re: Nail Biting
Bigmack - I think the bittering agent here is Methanol Methanol is a denaturant .It is added so the ethanol can be sold Excise tax free . It actually has no smell or taste and is unfortunately why it gets mixed with ethanol and passed to kids to drink on the cheap . They have no idea they are drink...
- 08 Aug 2022, 14:33
- Forum: Recipes and Pracs
- Topic: Nail Biting
- Replies: 19
- Views: 7568
Re: Nail Biting
LOL , soak them in Methylated Spirits . Our Australian stuff contains a strong bittering agent ...not particularly non-hazardous though....but it stops Winoe's drinking it without poisoning them .Unlike America where they actually add Methanol . :whistling2: have to ask why a teacher would choose to...
- 01 Aug 2022, 17:55
- Forum: Sourcing Materials & Eq Repairs
- Topic: End User Declaration
- Replies: 47
- Views: 33743
Re: End User Declaration
AFAIK , EUD has to include a drivers licence. So you can’t claim that the school is purchasing it . It would have to be a nominated person with a valid licence .
- 01 Aug 2022, 10:45
- Forum: Sourcing Materials & Eq Repairs
- Topic: End User Declaration
- Replies: 47
- Views: 33743
Re: End User Declaration
I asked my principal . She said it was definitely not my responsibility .She told me to get the Science head teacher to fill out the EUD .
- 01 Aug 2022, 06:59
- Forum: Chemistry and Labware - General
- Topic: Plastic bottles/jerry cans for solutions
- Replies: 24
- Views: 12954
Re: Plastic bottles/jerry cans for solutions
Surffice to say that it is normally stored in the chem store rather than just on the shelf . But the Chem store needs a good sort out . Once I have git rid of all the weird molarity 2litre Gerry cans , I’ll address the DG issue