Hi all
I have one cabinet to store corrosives. I attempt to separate by shelves the acids and bases. I also have iodine in there (double bottled in sealed plastic bags). However I am still finding that all my labels get stained brown - they would become unreadable if I left them. Is it the iodine causing this or is it reactions between other things eg nitric acid? How do others store iodine? (I HATE iodine!)
Any help appreciated.
Kathryn
We don't have a cabinet for corrosives at all, they have their own bank of shelves in the chemstore. I haven't had any problems with my iodine (or anything else) staining labels.
melsid wrote: ↑13 Feb 2019, 10:44
We don't have a cabinet for corrosives at all, they have their own bank of shelves in the chemstore. I haven't had any problems with my iodine (or anything else) staining labels.
Same here melsid . We did have Iodine in a small cupboard in the prep room and there was a brown stain on the wall behind it but since its been stored in plastic bag in store room on the shelf it seems quite happy to vent off into a larger area . I think the smaller the containment area , the greater the concentration of gaseous Iodine .
And like melsid ,we don't have a corrosives cabinet either .
Hi, has anyone ever disposed of a corrosives cabinet, is it ok to just be put with general waste (there has been no spills in it) so i assume its fine.
Thought I'd ask.
Thanks
I did, I asked if they can take the old one to be disposed of but they don't, and they just said if there wasn't a spill it could probably be a general waste or maybe a metal recycling place.
Just thought I'd post the question hoping someone might know
I run with any acids that are classed as hazardous should be in a corrosive cabinet. Non-hazardous can sit on the shelf if you are short of space in the cabinet.
Merilyn1 wrote: ↑05 Nov 2024, 13:39
I run with any acids that are classed as hazardous should be in a corrosive cabinet. Non-hazardous can sit on the shelf if you are short of space in the cabinet.
Makes the most sense , but you might need a larger corrosive cabinet.
According to Risk assess ....the following acids are Hazardous.
Hydrochloric higher than 2.7mol/L
Sulfuric higher than 0.5mol/L
Nitric higher than 0.1mol/L
Phosphoric higher than 0.1mol/L
If it has the corrosive pictogram? Would that be a good indicator? I haven't looked them up. Just trying to work out what sizes I ACTUALLY need instead of what we currently have...
RosalieL wrote: ↑05 Nov 2024, 14:22
If it has the corrosive pictogram? Would that be a good indicator? I haven't looked them up. Just trying to work out what sizes I ACTUALLY need instead of what we currently have...
Interestingly again from Risk assess
The following acids get the Corrosive Pictogram when...
HCl higher than 7.6 mol/L
H2SO4 higher than 1.6mol/L
HNO3 higher than 0.7mol/L
H3PO4 higher than 2.9mol/L
If you go by that then you are still going to have a lot in the Corrosives cabinet . Except it would seem HCl
I think I only have 0.1M and 1M made up for most acids and bases except HCL which I also have a 2M (from memory - I'm not going to look right now!) so that should still work for me to just keep the concentrated ones in there. I only have one bottle of each concentrate so should be able to get away with smaller cabinets.
Do we HAVE to use a corrosive cabinet? I've worked in about 20 schools, and only a couple have had one - and I don't have one where I am permanently now.
I store my droppers in a second prep room (it is across the hall from me). I would never have room in the chem store!
LabTechBrooke wrote: ↑06 Nov 2024, 08:19
Do we HAVE to use a corrosive cabinet? I've worked in about 20 schools, and only a couple have had one - and I don't have one where I am permanently now.
I store my droppers in a second prep room (it is across the hall from me). I would never have room in the chem store!
Was never a thing at the NSW schools I worked in either Brooke . They just had shelves made of compressed Cement sheet .
My last schools Chem store was built after the CSIS came out .I think it's a case of do the best with the storage provided .
For years , we had Acids and Bases of all Molarities up to about 5 just on shelves in the prep room in HDPE Jerry Cans . They were at least in a lead tray .Principal come down for a visit and spat the dummy .Was told to put anything that didn't have a green dot in the Chem store .( on shelves of coarse with the lead tray under it ) .There was not enough space on the Cement sheet area to hold all the Jerry Cans we had . I did cull a lot of them to the disgust of the Chem teacher .
LabTechBrooke wrote: ↑06 Nov 2024, 08:19
Do we HAVE to use a corrosive cabinet? I've worked in about 20 schools, and only a couple have had one - and I don't have one where I am permanently now.
I store my droppers in a second prep room (it is across the hall from me). I would never have room in the chem store!
Only if you don't have room to segregate from incompatible substances by distance. Eg class 8 (corrosives) and class 3 (flammables) must be 3m or more apart. My store room is tiny so they need to be in cabinets.
Basically we store by DG class (transport), look at the manufacturers SDS. If it has a diamond transport class sticker on it, then it needs to be stored in the cabinet, everything else in bunds and on lower shelves if a liquid in general store.
