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Author Topic: Baking Soda + HCL = PCB etchant!  (Read 2576 times)

Offline hardcore misery

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Baking Soda + HCL = PCB etchant!
« on: February 29, 2008, 12:04:13 AM »
may nakasubok na nito? mas environment friendly kesa FeCL.
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Baking Soda + HCL = PCB etchant!
« on: February 29, 2008, 12:04:13 AM »

Offline paranz

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Re: Baking Soda + HCL = PCB etchant!
« Reply #1 on: February 29, 2008, 12:06:08 AM »
hehe first time ko marinig ito.

did you try it before? oki ba?
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Re: Baking Soda + HCL = PCB etchant!
« Reply #1 on: February 29, 2008, 12:06:08 AM »

Offline eyis_ece

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Re: Baking Soda + HCL = PCB etchant!
« Reply #2 on: February 29, 2008, 12:07:24 AM »
talaga? effective ba to? wla bang ratio kung gano ka rami? galing wah..
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Re: Baking Soda + HCL = PCB etchant!
« Reply #2 on: February 29, 2008, 12:07:24 AM »

Offline hardcore misery

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Re: Baking Soda + HCL = PCB etchant!
« Reply #3 on: February 29, 2008, 12:16:54 AM »
hanapin ko ulit yung site na napagbasahan ko nito... safe diba? baka may nakasubok na, reviews naman.
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Re: Baking Soda + HCL = PCB etchant!
« Reply #3 on: February 29, 2008, 12:16:54 AM »

Offline mArKhAo

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Re: Baking Soda + HCL = PCB etchant!
« Reply #4 on: February 29, 2008, 12:19:59 AM »
astig yan ah.... ehehe :D
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Re: Baking Soda + HCL = PCB etchant!
« Reply #4 on: February 29, 2008, 12:19:59 AM »

Offline express

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Re: Baking Soda + HCL = PCB etchant!
« Reply #5 on: February 29, 2008, 12:30:25 AM »
Parang mas unsafe ito ha. Tapos magkalaban pa itong dalawa na 'to. ano kayang reaction nito? ???
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Offline Shey

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Re: Baking Soda + HCL = PCB etchant!
« Reply #6 on: February 29, 2008, 12:36:34 AM »
HCL + NaHCO3 ---> Sodium Chloride + Carbon Dioxide 

Paano na-etch yung copper?
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Offline hardcore misery

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Re: Baking Soda + HCL = PCB etchant!
« Reply #7 on: February 29, 2008, 06:31:04 AM »
ewan ko din :D

nabasa ko lang sa isang forum, hindi ko na mahanap yung web page. kaya tinatanong ko dito kung may nakasubok na nun... :)
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Offline ferds

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Re: Baking Soda + HCL = PCB etchant!
« Reply #8 on: February 29, 2008, 07:41:12 AM »
pinaka the best na try kong pang etch ay.. 1 part Muriatic acid and 2 part Hydrogen Peroxide..
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Offline Shey

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Re: Baking Soda + HCL = PCB etchant!
« Reply #9 on: February 29, 2008, 07:47:38 AM »
Yep I tried that one already. Yung reaction kasi ng muriatic acid, hydrogen peroxide at copper metal dun sa pcb nakakawa ng Cupric Chloride ( greenish solutions ).. Tapos yung "Cupric Chloride" kakainin nila yung iba pang copper na nakadikit sa PCB mo..

Ang downside niya is bumabagal ang reaction habang kumakain ng copper metal yung Cupric Chloride kasi na-co-convert sila sa Cuprous Chloride ( olive brown stuff )..  Para makapag-etch ka ulit kailangan mag-supply ka na naman ng HCL at Hydrogen Peroxide in the correct proportion para ma-convert mo yung Cuprous chloride into Cupric Chloride ( green solutions )..
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Offline marcelino

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Re: Baking Soda + HCL = PCB etchant!
« Reply #10 on: February 29, 2008, 03:58:29 PM »
Quote from: Electron on February 29, 2008, 07:47:38 AM
Yep I tried that one already. Yung reaction kasi ng muriatic acid, hydrogen peroxide at copper metal dun sa pcb nakakawa ng Cupric Chloride ( greenish solutions ).. Tapos yung "Cupric Chloride" kakainin nila yung iba pang copper na nakadikit sa PCB mo..

Ang downside niya is bumabagal ang reaction habang kumakain ng copper metal yung Cupric Chloride kasi na-co-convert sila sa Cuprous Chloride ( olive brown stuff )..  Para makapag-etch ka ulit kailangan mag-supply ka na naman ng HCL at Hydrogen Peroxide in the correct proportion para ma-convert mo yung Cuprous chloride into Cupric Chloride ( green solutions )..

ah ok... ito ba yung reason kaya di magandang irecycle ang cupric chloride? di tulad ng FeCL, pwedeng magamit ng ilang beses....
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Offline Shey

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Re: Baking Soda + HCL = PCB etchant!
« Reply #11 on: February 29, 2008, 07:54:59 PM »
Quote from: marcelino on February 29, 2008, 03:58:29 PM
ah ok... ito ba yung reason kaya di magandang irecycle ang cupric chloride? di tulad ng FeCL, pwedeng magamit ng ilang beses....

Yep yan nga ang reason kung bakit hindi pwedeng ma-reuse ang cupric chloride kasi kailangan mo pa na mag-add ng tamang concentration ng HCL at H202.
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Offline Spidy31

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Re: Baking Soda + HCL = PCB etchant!
« Reply #12 on: March 01, 2008, 10:47:09 AM »
FeCl nalang . mas cheaper.
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Offline Shey

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Re: Baking Soda + HCL = PCB etchant!
« Reply #13 on: March 01, 2008, 08:25:15 PM »
Quote from: Spidy31 on March 01, 2008, 10:47:09 AM
FeCl nalang . mas cheaper.

Much cheaper pa kung gawin mo yung ginagawa namin ni mod. "marcellino" yung homemade ferric chloride hehehehe..
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Offline marcelino

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Re: Baking Soda + HCL = PCB etchant!
« Reply #14 on: March 01, 2008, 08:47:48 PM »
Quote from: Electron on March 01, 2008, 08:25:15 PM
Much cheaper pa kung gawin mo yung ginagawa namin ni mod. "marcellino" yung homemade ferric chloride hehehehe..

ay talga... isipin nyo ang 1liter na HCl cost PhP 50 at sandakot lang na pako. plus ilang tulo lang ng H202 tapos na...
hehehe

Nga pala, bumili ako ng sealable na pitcher, yung rectangular na slender. tapos dun ko ilalagay ang 1 liter na FeCl ko.
lalagyan ko din ng aerator para di na ako mag-aagitate...  pag ginamit ko na, pipicturan ko, para makita nyo! hehehe
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Offline paranz

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Re: Baking Soda + HCL = PCB etchant!
« Reply #15 on: March 01, 2008, 09:40:57 PM »
bumili nalang kayo ng powdered FECL. i bought 1 kilo once and it lasted over a year. it cost 85-90 pesos yata. Just add water and its ready to use  ;D
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Offline hardcore misery

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Re: Baking Soda + HCL = PCB etchant!
« Reply #16 on: March 01, 2008, 10:58:19 PM »
di nga kasi safe sa environment ang FeCl :(
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Offline paranz

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Re: Baking Soda + HCL = PCB etchant!
« Reply #17 on: March 01, 2008, 11:01:46 PM »
Quote from: hardcore misery on March 01, 2008, 10:58:19 PM
di nga kasi safe sa environment ang FeCl :(

oo nga pala  :D
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Offline marcelino

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Re: Baking Soda + HCL = PCB etchant!
« Reply #18 on: March 09, 2008, 09:23:02 PM »
Quote from: ferds on February 29, 2008, 07:41:12 AM
pinaka the best na try kong pang etch ay.. 1 part Muriatic acid and 2 part Hydrogen Peroxide..

ei, nagtry ako nito... ngayon lang... as in, kakatapos ko lang...

grabe pala ang hydrogen edition nito! sakit sa ulo! hehehe
pero, mabilis... sobrang bilis!:) hehehe
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Re: Baking Soda + HCL = PCB etchant!
« Reply #18 on: March 09, 2008, 09:23:02 PM »
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