Originally posted by cty
Hi!
I'm new here, so greetings to you all cycling fans!
I have a question about this phosphate thing. I've read a lots of articles about it and decided to give it a try. I've managed to get some tribasic from a chemicals factory (they said it's legal, meaning that i don't have to have any licenses to buy it). Well, it's quite cheap, by the way. (If it works, then probably it's the most practical performance aid, looking at the price/benefit ratio...)
But it's not pure na3po4, it has 12*h2o (water...) added to it, which is the available hydrous form at most places. I have 1kg of it (probably would be enough for years, if one wants to use it regurarly; but i don't suggest that thing). According to the molecular weights of both materials, i have 431 grams of na3po4 and the remaining 569 grams is water.
At e-caps.com, dr. Bill's saying that "na3po4+12h2o=tribasic sodium phosphate". And he doesn't mentioning "12-hydrate" or "dodecahydrate"; nor do the other phosphate-documents. From this, i suggest that i have to take 1 grams of na3po4+12h2o.
Is my logic correct, or i have to measure 1 grams only from na3po4? (Which would mean that i have to take in 2.3 grams from the mixture, four times a day.)
The difference between the two doses is 1.3 grams, which is quite huge; so it's an important question. I don't want to get overdosed, you know ;-) Nor want to be underdosed, of course...
Thanx for your help!
PS: I will try to swallow by dissolving it in a glass of pure orange juice, so the high alkalinity of the tribasic can be neutralized. Is this method okay?
Originally posted by iDog
Ric,
I think I understand why it’s better to compare power - if power is measured accurately. I’m assuming it is.
I haven’t read the article/research on the 25 mile time trial (that you refer to at the beginning of your article). Eventhough they say, “…time could be reduced by 8%...”, I’m guessing they also measured power and translated this to time? I would think this can be translated directly. Right?
Can you briefly describe how power is measured? Is it basically a measurement of the force (torque) applied to the pedals? Thanks for the info.
Originally posted by cabbage74
Finally I did locate a supplier in Australia for this. As people have said before it is dirt cheap, which is good cause they only sell it in 25kg, which will cost approx $55 AUS, or $35US.
I hope this helps.
p.s. My supplier only has it as Technical Grade and not Food Grade, which should be ok....I hope. Especially with only taking 1gm/day.
cabbage74 said:Some people (including myself) have been finding it hard to locate Tri-basic Sodium Phosphate. Most of the time when I called the raw material manufacturers they didn't even have it listed on their databases, let alone sell it.
Something which will help you locate it is knowing its MSDS number which is. S4770.
For a copy of the MSDS (there may be newer version) you may find it here.
http://164.107.52.42/MSDS/S/sodium phosphate tribasic.pdf
Another site is useful in the fact it lists the LD50 (Dose at which you 50% of test animals died,based on body weight), which happens to be 7400 mg kg-1. Or approx 500 grams for a 70kg person. Unlikly.
http://ptcl.chem.ox.ac.uk/MSDS/SO/sodium_phosphate_tribasic.html
Finally I did locate a supplier in Australia for this. As people have said before it is dirt cheap, which is good cause they only sell it in 25kg, which will cost approx $55 AUS, or $35US.
I hope this helps.
p.s. My supplier only has it as Technical Grade and not Food Grade, which should be ok....I hope. Especially with only taking 1gm/day.
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