Gargamel
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Naphthalene storage
I'm having trouble finding a cheap naphthalene here in europe.
What prompts me to buy a little more and put it in storage.
I know this stuff is going to evaporate over time, and since I'll have to store it in my working area I dont want it to stink around. Yes, I know,
they used these mothballs in the old days, anyway, I dont like it.
Will it stink/permeate through HDPE over time?
Do I need glass vessels?
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njl
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The naphthalene I bought as mothballs from a hardware store came in porous plastic bag inside a cardboard box, went unopened for several weeks, and
still weighed in very close to what was listed on the box. I don't think you need anything more than a glass jar.
Reflux condenser?? I barely know her!
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UC235
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Glass is fine. You will definitely smell it through HDPE, at least eventually, but you won't lose a discernible amount of it through diffusion.
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Boffis
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I have jars of naphthalene that date from the 1940's and they are just fine. The hydrocarbon tends to migrate around inside the jars by sublimation
but I can see no evidence that significant loss has occurred. The jars are glass with lacquered metal or bakelite lids but as UC235 said, I would
avoid plastic jars.
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valeg96
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Quote: Originally posted by Gargamel  | I'm having trouble finding a cheap naphthalene here in europe.
What prompts me to buy a little more and put it in storage.
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fyi Here and Here
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zed
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I saw Naphthalene, for sale here in the USA, a year or two ago. Four Bucks a pound, at Walmart. God that stuff stinks. I was keeping some in a
clothes closet (for Moth Prevention) until the odor became oppressive. The stench did not leave my woolens easily. Eventually, I put it in a sealed
Mason Jar. Just the right thing.
Right price too. Quart Mason Jars, cost about $12 a dozen here. Hmmm. I wonder if I can buy the such jars, in "Brown Glass"?
Seems to me, I've had items like Camphor, "burn" right through their plastic bags. Might take a few months, or years, but the ability of plastics to
resist chemicals, is sometimes only transitory.
[Edited on 7-3-2021 by zed]
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Gargamel
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Thank you all, so i'll use glass jars.
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Mabus
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A bit late to the party, but a very good way to store naphtalene, and anything similarly smelly, is in an empty metal paint can, or if you don't have
that, you can always use an empty leftover instant coffee metal can, which is similar in construction.
I use the latter to store my own naphtalene (which itself is in a sealed plastic bag) and it's very effective. I even keep some calcium carbide in an
empty Amigo coffee can, and it holds up pretty good even after several years of storage, CaC2 is already sold in similar metal cans. I actually prefer
the instant coffee cans to paint cans, since they open much easier, so I don't accidentally damage them if I have trouble trying to open them, which
would ruin the seal.
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