Storing & Handling Bromine
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- This topic has 4 replies, 3 voices, and was last updated 9 years, 11 months ago by nawagi.
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June 9, 2015 at 7:58 am #17424titistephMember
Thanks a lot for sharing your experiment. You have a very hight safety level.
Mine seems to be not so hight.
I’m working to improve that, following your advices.
I’s very important to share those informations, and everyone should give here his recommandations.You said you store your Br Iodine and Hg outside. What happens when it’s very cold or hot?
Bromine may boil in hot weather or freeze in cold weather.For my own, I put my Hg bottle into a glass jar, sealed with a strong rubber joint (seal). I don’t know if it’s enough.
Same with iodine crystals.
For bromine (I use bromine water), I use the same principle, (bromine’s bottle into a glass jar) but I add some hypo crystals into the jar (following Photolytic’s advice). It works very well, but I use it since only today, so I don’t know what will it happen next months.I let those jars into my lab. But I go there only for dag. It’s located into my garden.
Durink working, I use a professionnal fume hood, plus a respirator covering the face with Hg filters. Nitrile gloves and a another pair of chemical gloves on it during bromine manipulations.June 9, 2015 at 8:05 am #17425titistephMemberAnother question : how do you store charged silica gel with bromine?
June 11, 2015 at 5:40 am #17441Andy StocktonParticipantNawagi-
Thanks for your post on safe chemical handling. Very comprehensive and the best we have ever had posted on CDags. Anyone wishing to work with Daguerreotypes would do well to copy your meticulous approach.
I wonder if you could share your source of the PTFE lid for a Mason jar? I had not run across that before. Also – since it sounds like you are using your truck as a mobile darkroom – can you share any method you use to stabilize the Mason jar inside of the paint can?
Andy
June 17, 2015 at 6:53 am #17444nawagiParticipantPTFE sheets can be found on Amazon by searching for “Teflon sheet”. I cut the sheet to fit inside the mason jar lid and completely seal the rim of the jar. Also handy for sealing the lids of fuming boxes.
I store the Bromine-charged silica gel the same was as I store liquid bromine: inner 500ml brown glass bottle with PTFE lid and tape, outer mason jar with PTFE lied and tape, sealed metal paint can.
I don’t need to stabilize the brown glass bottle inside the mason jar- it’s a tight fit. When I place the mason jar inside the paint can, I center it in the can and then pour about 4″ of vermiculite between the can and the jar to keep everything stable. I learned this from a chemical shipper. You can find clean vermiculite at any garden center.
Andy- I appreciate your kind words. I hope I can contribute even a portion of what you and John have to support the working Dag community. I’ve thought about posting videos showing some my safety procedures, but hesitate to “let the genie out of the bottle” and have someone less cautious that I quickly attempt the process and injure themselves (and then sue me…). Like John, I have extensive lab experience dealing with some very dangerous compounds. Respect, caution, personal protection and training all work together to make a safe and beautiful image. And I still have all my teeth…
NWG
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