I can buy 5g of the 99.5 for 160, or I can buy 1 g of the 99.95 for 115.
Is it worth the extra money to pay for the 99.95?
What are the impurities?
Posted 11 March 2013 - 12:30 AM
Posted 11 March 2013 - 01:48 AM
Posted 11 March 2013 - 02:09 AM
Posted 11 March 2013 - 02:43 AM
That is definitely true, purchase the 99.95% pure C60 and give use feedback on results from your experiment.At this stage it seems extremely risky to ingest anything but the purest stuff you can get.
Posted 11 March 2013 - 02:44 AM
Posted 11 March 2013 - 06:47 AM
What extraction process did your source they use? The C60 I got is around 70% C60 with 28% C70 and 2% higher Fullerenes included, in the booklet they sent with it they discussed the extraction process as being key to getting Fullerenes specifically not just other carbon junk that might be extracted. I would guess that the impurities in the sample you are purchasing are simply higher Fullerenes, C70 probably makes up a large portion of the impure fraction.
A lot of people have purchased the same C60 as I and have had no immediate trouble, but karma gets you back eventually.. higher Fullerenes have been reported to cause muscle pains so you should probably try the purest version, we don't know what we are dealing with really and I was stupid to go for the cheapest one I could afford.
Posted 11 March 2013 - 12:36 PM
Edited by Andey, 11 March 2013 - 12:44 PM.
Posted 11 March 2013 - 03:31 PM
What extraction process did your source they use? The C60 I got is around 70% C60 with 28% C70 and 2% higher Fullerenes included, in the booklet they sent with it they discussed the extraction process as being key to getting Fullerenes specifically not just other carbon junk that might be extracted. I would guess that the impurities in the sample you are purchasing are simply higher Fullerenes, C70 probably makes up a large portion of the impure fraction.
A lot of people have purchased the same C60 as I and have had no immediate trouble, but karma gets you back eventually.. higher Fullerenes have been reported to cause muscle pains so you should probably try the purest version, we don't know what we are dealing with really and I was stupid to go for the cheapest one I could afford.
NB:Turnbuckle had negative effects from this grade of C60/70..!
Perhaps this is why you seem to be getting some... er... very strange effects!?
Posted 11 March 2013 - 06:54 PM
What extraction process did your source they use? The C60 I got is around 70% C60 with 28% C70 and 2% higher Fullerenes included, in the booklet they sent with it they discussed the extraction process as being key to getting Fullerenes specifically not just other carbon junk that might be extracted. I would guess that the impurities in the sample you are purchasing are simply higher Fullerenes, C70 probably makes up a large portion of the impure fraction.
A lot of people have purchased the same C60 as I and have had no immediate trouble, but karma gets you back eventually.. higher Fullerenes have been reported to cause muscle pains so you should probably try the purest version, we don't know what we are dealing with really and I was stupid to go for the cheapest one I could afford.
NB:Turnbuckle had negative effects from this grade of C60/70..!
Perhaps this is why you seem to be getting some... er... very strange effects!?
Yes indeed. Even small amounts of C70 over a few days is very bad. Get the 99.95% and be happy.
Posted 11 March 2013 - 07:40 PM
Yes indeed. Even small amounts of C70 over a few days is very bad. Get the 99.95% and be happy.
Posted 11 March 2013 - 08:06 PM
Posted 11 March 2013 - 08:07 PM
Yes indeed. Even small amounts of C70 over a few days is very bad. Get the 99.95% and be happy.
I am very surprised. I would have expected C70 to be almost chemically identical to C60.
According to this paper the band gap for c70 is about 1.56 ev, as compared to 1.86 for C60. It should distribute the charge aromatically over the entire surface of the sphere / ellipsoid. It is almost the same size. If it is adducted to a fatty acid, it should do almost the same.
It should be even better at accepting and recycling electrons, than C60.
Do you have any insight on why C70 is not a good thing?
Posted 11 March 2013 - 08:09 PM
Posted 11 March 2013 - 08:52 PM
Edited by anagram, 11 March 2013 - 09:04 PM.
Posted 12 March 2013 - 01:12 AM
Edited by xEva, 12 March 2013 - 01:14 AM.
Posted 12 March 2013 - 02:22 AM
Posted 12 March 2013 - 03:05 AM
I got plain 99.9% which is not vacuum oven baked. So I put it on max overnight in our feeble toaster oven before I crushed it (I doubt it outputs more than 400F). The idea was that this was better than nothing. What effect could this have had in reality?
Posted 12 March 2013 - 07:45 AM
I got plain 99.9% which is not vacuum oven baked. So I put it on max overnight in our feeble toaster oven before I crushed it (I doubt it outputs more than 400F). The idea was that this was better than nothing. What effect could this have had in reality?
Air oxidation of the C60? I don't actually know how stable it is against air oxidation, but that's a thought.
Posted 12 March 2013 - 10:42 AM
Posted 12 March 2013 - 04:09 PM
I got plain 99.9% which is not vacuum oven baked. So I put it on max overnight in our feeble toaster oven before I crushed it (I doubt it outputs more than 400F). The idea was that this was better than nothing. What effect could this have had in reality?
Air oxidation of the C60? I don't actually know how stable it is against air oxidation, but that's a thought.
Ouch. Does it mean that I made it worse instead? What happens when c60 is air oxidized?
The oxidation of C60 solid was investigated using TGA, DTA, X-ray diffraction, FTIR, and optical microscopy. Oxidation reaction of solid C60 commences at a temperature below 220 C, resulting in the formation of a polycondensate (PCS) with C:O = 5:1. The associated heat of formation Delta Hf is determined to be 9.2 kJ/g. From the isothermal investigations carried out between 220 and 240 C, the reaction mechanism is identified to be a two-dimensional nucleation and growth process. The PCS is found to undergo a structural modification without weight change beyond 220 C with an enthalpy change of 4.6 kJ/g. The PCS itself is found to consist of (1) a glassy carbon with an inter-microfibril distance of 3.78 Angstrom obtained with the destruction of the C60 cage, (2) an amorphous C60-O-C60 complex characterized by the intermolecular distance of 15.04 Angstrom with an oxygen atom forming a bridge between two C60 molecules, and (3) an unidentified crystalline phase with carbonyl bonds.
Posted 12 March 2013 - 06:00 PM
the small amount of toluene left in the mix is less than that allowed by the FDA in 1 litre of drinking water,
Posted 12 March 2013 - 06:14 PM
Posted 12 March 2013 - 06:23 PM
the small amount of toluene left in the mix is less than that allowed by the FDA in 1 litre of drinking water,
How do you know it is toluene, and not another solvent, like benzene?
I got a reply back from SES. The 99.5, C60 / total fullerene fraction. They don't include solvent numbers in the purity.
Purity is expressed of fullerene content compared to other carbon fullerenes content.
Tested by HPLC (High Performance Liquid Cartography)
C60, 99.5%
The impurities of 0.5%, is primary C70,
The 99.5% is not solvent free.
Edited by pleb, 12 March 2013 - 06:26 PM.
Posted 12 March 2013 - 07:45 PM
Edited by ClarkSims, 12 March 2013 - 07:47 PM.
Posted 12 March 2013 - 07:50 PM
Posted 12 March 2013 - 08:01 PM
Edited by pleb, 12 March 2013 - 08:11 PM.
Posted 12 March 2013 - 08:53 PM
if you look on their website they state they use toluene for the Buckminster fullirine, they also produce other carbon types as well and probably use the cheaper more toxic solvents on those,
Posted 12 March 2013 - 09:08 PM
Edited by pleb, 12 March 2013 - 09:09 PM.
Posted 12 March 2013 - 09:10 PM
Edited by anagram, 12 March 2013 - 09:20 PM.
Posted 12 March 2013 - 09:23 PM
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