Again untrue whatever you think is “whole” water, any dessicant will absolutely undoubtedly help with evaporation.
Not every person is tech savvy enough to open boards. Advice for most novices is still put phone between dessicant to get water out of the device is valid and good advice.
Would using isopropyl alcohol be better option? Sure it is. but telling my aunt to do it, and device will probably die because she doesn’t know how to handle pcbs anyway. I’d much rather just advice using dessicant and hope mineral residue doesn’t sort anything. And I’ll continue with that advice forever.
Bro you need to understand how relative humidity works. Evaporation is dependent on both air circulation and humidity gradiant. Now out of the two humidity gradiant is by quite a strong factor to the point where you can have very high air circulation of 100% relative humidity and you would see very little evaporation. Compare that a 20% relative humidity and no air circulation and you will see much more evaporation until relative humidity reaches 100%.
So what a dessicant does is take the relative humidity down by quite a lot in a sealed container and that forces evaporation quite a bit, and it will continue to dry the phone until relative humidity reaches 100% which will only happen once rice/desiccant has absorbed all the water it possible can at the given temperature and pressure.
Again untrue whatever you think is “whole” water, any dessicant will absolutely undoubtedly help with evaporation.
Not every person is tech savvy enough to open boards. Advice for most novices is still put phone between dessicant to get water out of the device is valid and good advice.
Would using isopropyl alcohol be better option? Sure it is. but telling my aunt to do it, and device will probably die because she doesn’t know how to handle pcbs anyway. I’d much rather just advice using dessicant and hope mineral residue doesn’t sort anything. And I’ll continue with that advice forever.
But it doesn’t help with evaporation. It actually prevents it by preventing air from circulating.
Bro you need to understand how relative humidity works. Evaporation is dependent on both air circulation and humidity gradiant. Now out of the two humidity gradiant is by quite a strong factor to the point where you can have very high air circulation of 100% relative humidity and you would see very little evaporation. Compare that a 20% relative humidity and no air circulation and you will see much more evaporation until relative humidity reaches 100%.
So what a dessicant does is take the relative humidity down by quite a lot in a sealed container and that forces evaporation quite a bit, and it will continue to dry the phone until relative humidity reaches 100% which will only happen once rice/desiccant has absorbed all the water it possible can at the given temperature and pressure.