I want to increase the concentration of an aqueous calcium bicarbonate solution and have considered using 3A zeolite molecular sieves. I believe such zeolite uses potassium ions to make their pores smaller and is capable of exchanging the potassium for calcium, which I believe would make the...
In theory there should be some dissociation of ions, and I can exchange water once it reaches equilibrium to continue removing hydrogen ions. I want to use hot water to encourage dissociation, but I'm unsure why I'm not seeing a decrease in pH.
That is typically how it works, but couldn't I in theory remove the hydrogen from the resin? There should be some degree of dissociation, and I believe polystyrene sulfonate should be a fairly strong acid. I don't want to replace the hydrogen with other cations, as is typical.
I want to strip the hydrogen ion from a cation exchange resin. Would it be feasible to do this using hot water? I've tried using water at somewhere above 130 degrees Fahrenheit I believe, but I didn't see any immediate decrease in pH. I believe the resin uses polystyrene sulfonate. Should I use...
Wait, does this mean that it may be possible to get it to generate entangled photons, if I'm careful and can produce a laser pointer that can still go through SHG? You said that it would be in the same mode as strong IR beam. Would that mean that entangled photons would be indistinguishable from...
In other words, since the crystal is likely not cut for this application, I won't be able to generate an appreciable amount of entangled photons with my setup. Thanks for letting me know; I wouldn't want to continue wasting time on something that won't work. If you don't mind my asking, as I...
I've been trying to generate entangled photons using KTP laser pointer that normally produces green light at 532 nm. I was hoping that after removing the IR filter, I could add a reflective coating (right now the coating I have is a glittery metallic green nail polish) to reflect the green light...
From what I've seen KTP can be somewhat expensive. I've seen a 1 cm wide crystal for $80, and it may still have the coating I'm trying to remove. I don't think a slightly uneven surface would prevent entangled photo generation; what I'm a little concerned about is an uneven surface harming the...
In terms, of flatness, it may not need to be perfect. The main point of this is to create an OPA to generate entangled photons, so as long as they are position-momentum entangled leaving the crystal, that should hopefully be sufficient.
Would silver polish work for the polishing? I have Tarn-X. Here is a link to its components:
https://householdproducts.nlm.nih.gov/cgi-bin/household/brands?tbl=brands&id=10006010
It also supposedly contains thiourea according to the bottle. It also seems like it could etch the crystal would...
I want to make an optical parametric amplifier and am considering using a KTP crystal from a laser pointer. The problem is the KTP seems to have a coating that filters 1064nm light which I want the OPA to produce. I've tried to remove the coating using nail polish remover (acetone), but that...
I may not be using enough fertilizer, so I can try adding more. I am still interested in how that initial crystal formed though. Do you have any idea? There was also something floating in the solution after the crystal formed, which may have been a small fragment of the ribbon I was using as a...
I've been trying to grow a KDP (potassium dihydrogen phosphate) crystal, but I'm having trouble growing anything. I've been adding potassium phosphate fertilizer to distilled water in a bottle I cleaned out and heating it to dissolve the chemicals, but so far haven't gotten much results. It's...