Just hang on to reality and you will be OK. The reality is no CD at WTC on 9/11.
Remember that this whole exercise is a derail red herring. The real issue is that the truthers want to prove demolition. They claim that thermXte was used in CD - or to be pedantically accurate they claim that:
A) ThermXte could have been used in CD; AND
B) It is our responsibility as debunkers to prove that thermXte wasn't used in CD.
(It is more generic than that - truthers/trolls hold the position that it is our responsibility to disprove each and every silly claim they make. And people go along with that path chosen by the truther/trolls.

Remember - who makes the claim has burden of proof. And not the troll/truthers version which is "Whatever claim I make it is up to the debunkers to disprove." That is a mix of "reverse burden of proof" AND "prove a negative". )
Now the simple fact is that there was no CD - the evidence sufficient to satisfy any honest intelligent person who is not a scientist. To satisfy the scientists we need to play word games that it is "almost certain no CD and no-one has proved otherwise." Well beggar the scientific pedantries --- there was no CD.
And the truthers and more particularly the trolls want us debating on ground that they have chosen so they can keep discussion going round in circles. The objective is the trolls objective. The ground for debate is the ground chosen by the trolls to suit their purpose. And we are silly enough to play their games.
It is even sillier because, not satisfied with either "there is no thermxte" OR "there was no CD", the trolls have taken two paths. In this thread they are disagreeing with the methods of measurement. If they get their way we will next be discussing the credibility of the firms who make all this esoteric measurement gear ... or something equally as irrelevant like the colour of the box the machine was delivered in.
(And, BTW, we have another thread discussing troll chosen irrelevancies called "iron microspheres".)
Both sidelines are equally a waste of time to this thread
from the perspective of 9/11 conspiracies - there was no CD and that is the firm bit of reality to hang onto.)
If the trolls/truthers ever decide to argue "CD or no CD?" I may join in. But I won't go down their sidetracks.
and there is no need to be "frightened" or "confused" by the detailed stuff in this thread. Remember -- it is only an excuse to avoid discussing CD and there was no CD.