ericrm
Well-known member
would it be dangerous to dissolve electrolitic capacitor in sulfuric acid? :
from wiki:
There are three major types of water-based electrolytes for aluminium electrolytic capacitors: standard water-based (with 40-70% water), and those containing ethylene glycol or dipropyl ketone (both with less than 25% water). The water content helps lowering the equivalent series resistance, but can make the capacitor prone to generating gas, especially if the electrolyte formulation is faulty; this is a leading cause of capacitor plague, to which the high water content electrolytes are more susceptible. The lower voltage ratings (thinner oxide layer) and lower operating voltage (slower regeneration of oxide layer) are further aggravating factors.[8]
Solid Aluminum electrolytic capacitor with organic semiconductor electrolyte or OS-CON (which stands for OrganicSemi-CONductive) : a new generation capacitor in which the aluminum foil layers are not immersed in a liquid electrolyte solution but in a solid semiconductive material derived from isoquinoline. The single crystal N-n-butyl-isoquinoline is thermoformed to final shape enhancing its conductivity substantially, thus protecting the capacitor from excess heat surges, and finally the OS-CON cans are sealed with epoxy. These capacitors are stable in use between -55°C to 125°C. The main advantages of using this particular semiconductor are fairly low ESR, wider frequency range and greater stability in use compared to liquid electrolyte aluminum and tantalum solid polymer capacitors.[15][16] OS-CON capacitors are often found as SMD.
i want to try to dissolve whole board in sulfuric acid to avoid plastic goo like in hcl, but i dont know the risk involved... i also want to try to electroplate the resulting tin sulfate to see if it could cover the chemical fee...
from wiki:
There are three major types of water-based electrolytes for aluminium electrolytic capacitors: standard water-based (with 40-70% water), and those containing ethylene glycol or dipropyl ketone (both with less than 25% water). The water content helps lowering the equivalent series resistance, but can make the capacitor prone to generating gas, especially if the electrolyte formulation is faulty; this is a leading cause of capacitor plague, to which the high water content electrolytes are more susceptible. The lower voltage ratings (thinner oxide layer) and lower operating voltage (slower regeneration of oxide layer) are further aggravating factors.[8]
Solid Aluminum electrolytic capacitor with organic semiconductor electrolyte or OS-CON (which stands for OrganicSemi-CONductive) : a new generation capacitor in which the aluminum foil layers are not immersed in a liquid electrolyte solution but in a solid semiconductive material derived from isoquinoline. The single crystal N-n-butyl-isoquinoline is thermoformed to final shape enhancing its conductivity substantially, thus protecting the capacitor from excess heat surges, and finally the OS-CON cans are sealed with epoxy. These capacitors are stable in use between -55°C to 125°C. The main advantages of using this particular semiconductor are fairly low ESR, wider frequency range and greater stability in use compared to liquid electrolyte aluminum and tantalum solid polymer capacitors.[15][16] OS-CON capacitors are often found as SMD.
i want to try to dissolve whole board in sulfuric acid to avoid plastic goo like in hcl, but i dont know the risk involved... i also want to try to electroplate the resulting tin sulfate to see if it could cover the chemical fee...
