Nitrates
- Labbie
- Posts: 3243
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Nitrates
I store most of our nitrates in the Oxidizing cupboard. I also put cling wrap around the lid with a little bag of silica gel inside. But I am finding them to have gone rock hard, I had to smash the Copper Nitrate in the plastic container. I have also tried putting the whole thing into a larger plastic bag. How do you store your nitrates? At this rate it is going to cost us the earth to keep going.
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
- fibreweb
- Posts: 620
- Joined: 20 Jul 2006, 10:00
- School: Oxley High School
- Suburb: Tamworth
- State/Location: NSW
Re: Nitrates
Isn't the action of Silica gel to remove the water?
Maybe you are drying it out too much.
I just looked at mine and 2 of the jars that are now over 20 years old are liquid!
Maybe you are drying it out too much.
I just looked at mine and 2 of the jars that are now over 20 years old are liquid!
Re: Nitrates
Yep, I am with fibreweb.
I have had mine go to solution, so only can be used for solutions with no specific molarity.
Lada
I have had mine go to solution, so only can be used for solutions with no specific molarity.
Lada
- Labbie
- Posts: 3243
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Re: Nitrates
I agree Fibreweb, I thought it would help remove the water ( Silica Gel), it does, but it was a solid lump. Needed a hammer to break it up. Has any one ever used those vacuum sealed bags, that you can store jumpers etc in. With NO air inside, just a thought?
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
- Loopy
- Posts: 592
- Joined: 08 Jun 2006, 10:00
- School: Mater Dei Catholic College
- Suburb: Wagga Wagga
- State/Location: NSW
Re: Nitrates
I always keep saying I'm going to measure out 1M quantities to store in jars. Then if they turn to liquid you still know the quantity will make up 1M. But of course it's on my "round tuit list"!
Lou P.
Learner Lab Technician
Wagga Wagga
NSW
Learner Lab Technician
Wagga Wagga
NSW
- Labbie
- Posts: 3243
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Re: Nitrates
Now that's a great idea,
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Re: Nitrates
What a great idea! clever thinking.
If you have a liquid in your container, one method to find an approximate value for the concentration is to use a solubility table. This gives the solubility of the chemical at different temperatures. So if you know the temperature of your chemical, the MW of it, then you should be able to do some maths and work out the concentration of the solution. Complicated but it will help.
go onto internet for solubility tables.
If you have a liquid in your container, one method to find an approximate value for the concentration is to use a solubility table. This gives the solubility of the chemical at different temperatures. So if you know the temperature of your chemical, the MW of it, then you should be able to do some maths and work out the concentration of the solution. Complicated but it will help.
go onto internet for solubility tables.
- Labbie
- Posts: 3243
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Re: Nitrates
I just used a foodsaver Vacuum package machine from Cooking, and it vacuumed out the air and sealed my copper nitrate, as time goes on I will let you know, if it has solved the problem. I believe the machines are only about $80.00, may be worth getting one.
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
- Labbie
- Posts: 3243
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Re: Nitrates
This should work out?
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Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
-
- Posts: 513
- Joined: 15 Aug 2011, 10:48
- Job Title: Lab Tech
- School: NDSC
- Suburb: west gippsland
- State/Location: VIC
Re: Nitrates
I just store my nitrates in a fire cupboard-not vented-seem to be OK, no silica gel.
- c.labs4ever
- Posts: 19
- Joined: 13 Nov 2014, 07:47
- Job Title: Lab Assistant
- School: St Josephs College
- Suburb: Hunters Hill
- State/Location: NSW
Re: Nitrates
Great idea, thank youLoopy wrote:I always keep saying I'm going to measure out 1M quantities to store in jars. Then if they turn to liquid you still know the quantity will make up 1M. But of course it's on my "round tuit list"!
Re: Nitrates
You know, I kept all of our old desiccators in the storeroom because I had room, but not because I use them. But maybe we should use them to store the hydroscopic chemicals. I have thrown out quite a few jars of Red Phosphorous because try as I might I couldn't stop it turning to liquid.
But when I was showing my replacement around the other day, and briefly explaining what things were, I realised the silica gel in the only desiccator I ever used, was still blue after probably 15 years! Maybe they are the answer.
But when I was showing my replacement around the other day, and briefly explaining what things were, I realised the silica gel in the only desiccator I ever used, was still blue after probably 15 years! Maybe they are the answer.