Does naphtha corrode mason jar lids?

[withegoddess]

Does shaking around naphtha in a mason jar corrode the lid?

I read in another thread they put tin foil under the lid. is this necessary?

 

[alert]

I've noticed discoloration of the lids over the course of multiple extractions, but I don't think it is a major issue. Never any holes or etching, just a bit of dulling of the color.

There is also no need to shake so violently that the lid is getting covered with NPS. Nice gentle twirls work just as well. I could be wrong, but I think aluminum foil would be more quickly to react with the solvent than the lids are.

 

[Pup Tentacle]

there's a rubber ring in the groove around the outside of the lid where it seats onto the rim of the jar... naphtha probably eats that right up... putting rubber into your soup.

 

[alert]

there's a rubber ring in the groove around the outside of the lid where it seats onto the rim of the jar... naphtha probably eats that right up... putting rubber into your soup.

Definitely no rubber in my mason jars. I use Ball canning jars.

 

[withegoddess]

I'm using ball canning jars too. My lids are white/off white on the bottom with a rubber seal

 

[Pup Tentacle]

Like such

 

[withegoddess]

All glass ball jar

saw these on ebay and amazon

 

[Entheogenerator]

Yes, naphtha can corrode the rubber seal and possibly the coating on the inside of mason jar lids. Naphtha won't do it quite as rapidly as other solvents, like xylene or acetone, but naphtha will still corrode them. Tin foil can protect the lid from solvents, but it should never be used on a vessel containing your lye solution. Lye reacts with aluminum foil, degrading the aluminum and creating hydrogen gas... Not good. Read this thread and this thread for more information on the subject.

I always recommend glass vessels with ground glass stoppers for extractions. These can be bought very cheap on eBay.

 

[Auxin]

Those (post 7) use a rubber sealing ring, when antiques are sold on ebay they often lack the ring and you have to buy new ones.
On regular mason jar lids its not just the rubber ring, but the plastic coating on the metal to consider as well.

When I just want to cover a mason jar and I dont need a serious seal I just use glass petri dishes.
I just cant shake them like that :lol:

 

[Metanoia]

Naphtha won't do it quite as rapidly as other solvents, like xylene or acetone...

Yes I learned that pretty quickly.

 

[Entheogenerator]

Yes I learned that pretty quickly.

As did I...

 

[withegoddess]

I always recommend glass vessels with ground glass stoppers for extractions. These can be bought very cheap on eBay.

Definitely gettin one of those