I don't know about our newbies here but YOU GUYS ARE SCARING ME !!! <laughs and ducks back down out of sight.>
Question about questions about iodized salt
- Thread starter wetmanNY
- Start date
The math checks out fine at 0.166ppm of iodide from KI in iodized salt at 1 tablespoon per gallon. That assume the original concentrations were real, and the K and I weights were externally verified (I checked neither).
That would be a dandy addition to the site wetman. It will not kill the myths, but it will give the dubious a ballpark figure to use in toxicity searches.
Nice
That would be a dandy addition to the site wetman. It will not kill the myths, but it will give the dubious a ballpark figure to use in toxicity searches.
Nice
Whew! sidelong glance at aquariaddictus
Well, Tempest, I figured if topics like "Is this Ich on the glass?" are okay in the General forum, then we can come in here and work out the iodide* thing and appal the Newbies.
* and I thought it was iodine tch!
Well, Tempest, I figured if topics like "Is this Ich on the glass?" are okay in the General forum, then we can come in here and work out the iodide* thing and appal the Newbies.
* and I thought it was iodine tch!
Hey, I scare myself sometimes; nothing new 
i sure could make a lot more money using that balance for other purposes
Can we talk about thyroids now, and the REASON we have iodide in our salt??
i sure could make a lot more money using that balance for other purposes
Can we talk about thyroids now, and the REASON we have iodide in our salt??
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Technically your are allowed to say there is iodine in potassium iodide. Chemically and in solution it is in the form of the iodide (I-), not the gas (I2). Certainly you could not say KI contains no iodine.
The term "iodine" is used differently in the lab and in everyday conversation. Nutritional discussions do not say that this or that food is rich in iodide - they say it has or is rich in iodine. In biosystems you are very rarely dealing with pure elements, you deal instead in combined forms, and you may use the element name to discuss its presence, it is not needed to specify the combined or ionic form unless there are availabilty issues - i.e., nitrite-nitrogen is not immediately available to plants, where ammonia-nitrogen and nitrate-nitrogen are accessible.
The term "iodine" is used differently in the lab and in everyday conversation. Nutritional discussions do not say that this or that food is rich in iodide - they say it has or is rich in iodine. In biosystems you are very rarely dealing with pure elements, you deal instead in combined forms, and you may use the element name to discuss its presence, it is not needed to specify the combined or ionic form unless there are availabilty issues - i.e., nitrite-nitrogen is not immediately available to plants, where ammonia-nitrogen and nitrate-nitrogen are accessible.
I guess that is the difference between strict science and everyday speak, or nutritional info. We would never analyze table salt for its iodine content, or look at sodium chloride for free chlorine. But I'm sure to the general public, it's all the same. The difference is how we 'express' it. However, if there were free I2 in table salt, or KI for that matter, you can bet no one would be adding it to fish tanks and the toxicity issue would have merit.
In anything other than something as stable as a sodium salt, I'm sure some of the iodide is present as iodate, so the calculations are far from pure.
Your point is well illustrated by iron. "Eat foods that are rich in iron". Even if you chewed on a rusty nail, you're still ingesting an oxidized form of iron, but we don't speak of it that way (although a labrat might). Maybe I've been caged too long! Our ionic balances (++ = --, on an atomic weight basis) had to be on target, and calculating using neutrals would not have accomplished that.
My math concerned me more than this technicality (did I say rusty earlier?) so I appreiciate you double checking it for me. WetMan: I'm sure you'll phrase it all to confuse the minumum number of the masses
In anything other than something as stable as a sodium salt, I'm sure some of the iodide is present as iodate, so the calculations are far from pure.
Your point is well illustrated by iron. "Eat foods that are rich in iron". Even if you chewed on a rusty nail, you're still ingesting an oxidized form of iron, but we don't speak of it that way (although a labrat might). Maybe I've been caged too long! Our ionic balances (++ = --, on an atomic weight basis) had to be on target, and calculating using neutrals would not have accomplished that.
My math concerned me more than this technicality (did I say rusty earlier?) so I appreiciate you double checking it for me. WetMan: I'm sure you'll phrase it all to confuse the minumum number of the masses
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Originally posted by aquariaddictus
"
PBQ's numbers are right - KI is 73% iodide, so the range of IODIDE, not iodine, is 14.6 - 29.2 ppm.
PBQ - what are you doing up so early?
Well, I'll be doggoned! And I never even took chemistry in school.... all I know about it I learned in geology class.... I'm glad someone with real knowledge of the stuff stepped in though....
heheheh. Are you still taking any narcotics?? Sometimes these things pop into your mind when you're in an altered state!!
How is the boy?? Sleeping thru the nite yet?
judy
How is the boy?? Sleeping thru the nite yet?
judy
no, but he sleeps pretty much all day....
I'm getting over a rather nasty bout of food poisoning, myself...
broke my 9-year plus "no-puke" streak... so now I'm on anti-nausea drugs, but no narcotics, in fact, I haven't even touched the bottle of oxycodone the doc prescribed for me.... figured I'd save it for a migrane or something...
I have, however, been thinking pretty hard about what I'd like to do with my career. Let's face it, hotel administration isn't the most stable field in the world... was thinking about going back to school for teaching, honestly.... (I'm fairly sure a combination of new-motherhood and narcotics while in the hospital started that thought process....)
I'm getting over a rather nasty bout of food poisoning, myself...
broke my 9-year plus "no-puke" streak... so now I'm on anti-nausea drugs, but no narcotics, in fact, I haven't even touched the bottle of oxycodone the doc prescribed for me.... figured I'd save it for a migrane or something...
I have, however, been thinking pretty hard about what I'd like to do with my career. Let's face it, hotel administration isn't the most stable field in the world... was thinking about going back to school for teaching, honestly.... (I'm fairly sure a combination of new-motherhood and narcotics while in the hospital started that thought process....)
And this is a Newbie forum! Just think what the poor beginners will expect from the main freshwater forum!
Seriously, this is a very interesting thread, and one that reminds me why I did so poorly in high school chemistry...
Jim
Seriously, this is a very interesting thread, and one that reminds me why I did so poorly in high school chemistry...
Jim
