pippo

Thanks. I need to mess around with this more and see if theres a way around it........Who knows, maybe sequence of addition may matter.

Thanks, sensei. Note that the solution is bad even before I added the weak sulfuric acid. So whatever problems there are were there to begin with. I just tried the H2SO4 for the sake of it realizing I have nothing to lose. So, how are some manufacturers doing this? What's the chemistry "secret"?

People, Mixing in DI water Calcium nitrate tetrahydrate, K Phos Monobasic, and Mg Sulfate, about 2% each. I am not sure if it is the sulfates or the phosphate that causes solution to get cloudy with ppt. Tried also to lower pH from initial 3.8 to 3 or so with dil sulfuric. Any one know what is causing the cloudiness? I still have to add KNO3 and K2SO4 in even smaller qtys but I stopped here as no need to proceed with a bad/turbid solution Tips appreciated.

Right- because, lately, is seems you are the only one who understands everything. Your smugness is too obvious, and evident that perhaps you need to get a life(?), Im not sure- just suspect. I killed NO wildlife, which you stated I did by your post. Just pesty spider mites. I have no more to say about this thread, and certainly will not continue to tit for tat with a member with such evidently low self esteem that he needs to berate/belittle fellow members on multiple threads (including my other one on mercury. ) Now, I have organic product to sell.........

Update: Look, forget about the nonsense about my product being "organic", as in "organic" food. If I did not explain clearly, my fault. It is NOT food. Also, to get to the chase without the back/forth about lectured on "morals", and "fraud", etc, no one is defauding anyone. You guys have no idea what Im growing, so suffice it to say it is irrelevant. I used permethrins on a partial crop, and GC tested out NEGATIVE. So, all the hype/predictions were for nothing, not to mention wrong. Just wantedf to post results of my testing/experiment on permethrins. The chemist at this lab said it this way-"they basically evaporate within 2-3 days. Looks like he was right. Product came out non detectable on GC.

Wow, good idea, John! Relatively clean operation, I think, too. Now, when you say ppt the Hg, will one actually see the liquid metal? Could I simply use excess of NaOH? Like, 1N NaOH in excess? thanks.

Thanks, pavel. I am an experienced chemist. Just wasnt sure of the reaction. Was hoping to just add nitric. Deal with toxic stuff every day. But your advice is still good. I dont think this is worth the mess.

People, Have some Mercuric chloride and want to convert to the mercuric nitrate, if possible/practical. Can leave it in aqueous solution as a 1Normal strength- do not need to have a crystalized nitrate. Any advice appreciated. (I have converted Be chloride to the nitrate in the past by boiling/reduction, with continual addition of excess nitric....) Thanks.

Thanks, people, for the imput. But if it's "gone", it's not there, so it's not dishonest, not that the subject of morals/"honesty" are even an issue- we're talking about a chemical being there or not. Apparently, based on the dialogue here, consensus appears to be permethrin doesnt "disappear". Therefore, I will NOT use it.

Right- it is not permitted for this particular crop item. BUT, thats why I was trying to get a handle on test results. I mean, heck- if it's gone (broken down/oxidized to an ineffective pesticide, etc) they shouldnt care, and it will pass as permethrin free. Dont mean to beat the subject to death, just trying to understand exactly what a GC will detect if it IS broken down. Maybe I shoyuld actually speak with the GC guy at the lab- I could find out which lab is contracted to do this test.......... Thnaks for your imput, John.

has nothing to do with lying. Some pesticides believe it or not are allowed in some organic farming circles- dont want to get it deep with that now, but the pesticides they allow arent even tested for. So, as far as the "organic" marketing hype which is at a fever pitch right now they dictate what is "organic". It's all a hypocrisy. But I appreciate your imput, John. Much to think about. good point.

As always, thanks, John. Good point on cis/trans. My only curiosity is in pesticide residue concerns if a pesticide is "oxidized" by atmospheric oxygen (air) or even light of the right intensity (guess sunlight would be the most "powerful") and therefore the effect of that pesticide to be rendered useless/inactive, why would the GC test come up showing results as positive for say, permethrin? (this is all leading to organic farming products having been exposed to permethrin, and after, being tested for permethrin residue. If the permethrin had become ineffective/useless/inactive, why would the ag product be stigmatized as having permethrin residue if it isnt even there as an effective "toxin"?)

Merck Index says it is an ester, but IUPAC says it's a carboxylate. Which is more accurate? Bigger question is, let's say a GC lab tests for Permtethrin- it calibrates the GC with a standard, then tests the sample for permethrin. Permethrin does not last long in the atmosphere/nature- I understand it oxidizes/"degrades". Will the degraded form show up in the GC test as "active" permethrin? Anybody know? Thanks

I know 145 is nothing. Thats why Im just 145. I am "light framed". Are you "stocky"? My belly blubber may account for say, 2-3 lbs. Im considering quitting my favorite Northern germany Pilzn beer.

thanks again.

Thnaks, people. Good to learn all this. Im actually very lean/lightweight- 145 lbs, 5'9". Just noticing some blubber down there, No fat anywhere else. Hate sweet drinks- no coca cola period. BUT, Like 1-2 12 oz of beer with dinner. Is that a possible contributor? I heard the "beer belly" is a myth. I dont know. Also, sit ups can destroy one's back. I do crunches with shoulders just off the floor. No use having a 6 pack ab with a destroyed back- this is well known in the Orthopedic world. Gotta be careful here. Still, gotts do something. I do the "plank" for 30 seconds at a time. Also, puch ups- 25 at a time. Guess I should continue. Oh- my bmi is 21.6!! Normal!! Thanks, fiveworlds. Thanks very much, people.

People, Say you have an animal (like a homo sapiens), with belly fat. Say, that animal (like homo sapiens) happens to go without food for say, 3-4 days. Will the body metabolize the stored fat first with the end result of having a trimmer abdomen whilst still not compromising the body's critical protein/vital nutrients store OR metabolize muscle protein instead of the stored fat? Oh- by the way, This is not about my spare tire fat around my lower abdomen..........LOL. Thanks

I still dont get why all the fuss about debating if there was a jesus, or not. I believe there was, based , and I repeat- the credible accounts of Roman history overall, but that doesnt mean I even CARE. If there was a jesus, and he was a "good" man, thats great- there were /are many "good" men, and women. Whats all the fuss about jesus? He cant be the son of god because there is no proof of any god anyway. Im an atheist, and true scientist (thats what this forum represents, right? If not, maybe some religious types should post on the scores of jesus sites on the web). Its cool that there probably was such a "jesus", and he probably lived a life of a great role model, but theres no reason to elevate him to status that most of the Christian world does today. Ignorance, wishful thinking, praying for wanting stuff for "free", etc etc etc. Im a scientist, and live my life based on that. I quit going to church years ago, and took a stand. If I go to hell, it will be because of god's revenge.

Hmmmmm, they are not competing (conflicting/contradictory) ideas? They compete/conflict to me. I also believe they did to Darwin too. (How he ever got along well with his religious wife is unbelieveable- the man was so understanding. )

Hopefully, this is on topic- Buddhism is more of a lifestyle, not a religion, so we have enough on our plate, people, lets keep Buddhism out of this. Hinduism too, for that matter. By far, the main religions which affect the vast majority of the world's population are Judeo-Christian, Islam, and the offshoots from J-C like Baptist, Protestant, Pantacostals, etc etc. In a strange perverted way, Catholic schools BY FAR prepare our American students better for College than do the public schools- no comparison. Im not saying though, the ends justify the means. Yes, strange how even wasting 45 minuted every morning from "bible reading" these students end up blowing away others in subjects like math/reading/and yes, science. Maybe the nuns scare the hell out of them, to do their studies......LOL! I have hardly ever read anything from the "Bible". I am not interested in reading misinterpreted/copied junk written and the rewritten/transcribed/translated by no one we know, with no credentials, and outdated as far even as 30 centuries, when the world was full of superstition, ignorance, and fear of the wrath of God if we didnt behave.

The whole jesus story for sure has been embellished, to say the least- to fit one's own end. But, Yes, a "jesus" was here, as far as the Romans have documented. The Romans' historical documentation, on many varied subjects, has been reliable. Now, weather this jesus person had the supernatural powers which are ascribed to him- thats where the embellishments begin.

I am aware they are 2 different processes, as I stated (2 means to same end product), although, technically, they are not same end product as you stated. But, only insofar as one can measure the difference. Your link is informative. But real world, our tap water contains almost no dissolved "solvents" to worry about. Trace pesticide residues are in the parts per trillion, if even detectable. Even so, most solvents have different boiling point as water. So the solvent at the same distillation temp is not relevant. So, to my original point, what should one expect in conductivity between the 2?

People, I always figured that the 2 methods for purifying water were about the same when comparing the end result- 2 means to the same end product. I know DI can get down to 18 megaohms resistivity at the service point, and after even a few minutes, it jumps to say, 0.2-0.5 u Mhos conductivity, which is still pretty clean water. Someone is now telling me distilled is what I need because DI is too "corrosive". Distilled may be 1-10 micromhos of resistivity, where di is usually less than 0.5 or so. Anyone have experience in this arena?

Yes, no one wants to encourage invasive species, but they destroy the local environment and create a new one, regardless of what we have establuished as acceptable ecosystem for that area. The new ecosystem evolves, just as it has for billions of years (although man made is different than "natural" forces. We have had ecosystems destroyed in florida from malaleuca from Australia, but now, the ecosystem has to evolve to a new one, although to us, it may be distasteful.