RE: Source for Uranium Nitrate
> -----Original Message----- > From: Judy Seigel [mailto:jseigel@panix.com] > Cor, aren't there differences in strength? Like between salad vinegar and > glacial acetic acid? I certainly hope so.... I've had that package of > uranyl nitrate in my cellar all these years, oops ! It came in a metal > container packed in something like mica -- but over the years the cover > & most of the mica disappeared. Oops ???? ..as far as I know (and I am by no means the expert) there are no differences in strength. The (direct) radioactivity is of no great concern as I indicated in my first respond. As Dick mentioned the high radioactivity isotope ("radioactive variant") has been removed. I once tried to expose a uranium toned silver gelatine to medical Xray film, and obtained no image. (disgress: I thought that uranylnitrate is a beta emitter, that means that it's radiation "travells" only very short distances, it gets absorbed by it's enviroment. That means that it's quite save to store the stuff in a glass jar, even when you weight out the stuff you are not exposed to radiation. But if you ingest it a beta emitter can cause great damage on the cellular level: see the poisened russian in London Alexander Litvinenko. Perhaps that is the basis of the great toxicity of uranyl nitrate. But than again: I might be completely wrong here: Bob Schramm were are you when we need you...;-).. ) > > Does anyone remember--- dare I mention the name without some avenging > angel sweeping out of the shadows to denounce me -- Jewellia? She did > uranium printing, apparently -- and though memory weakens by the minute, I > think some of the prints were beautiful. > ..I have a realy nice Uranotype in my possesion , made by Bob Schramm (he knows how to handle toxic stuff, probably likes it, seeing his other love: mercury vapours for his daguerreotypes...;-).. > But if you don't tell us what "I will not..oude koeien uit de > > sloot halen....(dutch verb).." means, I'm going to correct you. > (Like don't you mean "proverb," not "verb"?) NOW, fella, what > does it MEAN? ("Don't teach your grandmother to suck eggs?" Or...????) It > *sounds* -- or make that *looks* -- wonderful > No it has another meaning: (digging with google gave a good explanation): 'Laten we geen oude koeien uit de sloot halen' (literally: 'Let's not remove old cows from the ditch'), is a rather odd and vivid expression, which the Dutch usually use when they don't want to be reminded of something . often something unpleasant - that has happened in the past. This expression is typically Dutch, referencing both the ubiquitous Dutch cows and the watery ditches (sloot) that border most pastures. Using this expression is a way of letting people know you don't want to talk about a certain incident. If, for example, you borrowed and crashed your friend's car, and even though you paid for the repairs, your friend keeps reminding you of the accident, you could say, 'Laten we geen oude koeien uit de sloot halen'. I guess you'll guess that I was referring to Aqua Regia, but perhaps it's best to leave it at that.. Best, Cor
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