Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Or just gho into the garden and pick some Rhubarb leaves, lots of Oxalic acid in them. Just don't eat any or drink what you make from boiling them or the grass will be growing green over your prostrate form.

Malcolm

I don't suffer from insanity I enjoy it!
Mene, mene, tekel, upharsin
The writing is on the wall.
Ha-ktovet al ha-kir

--------------------------------------------

On Tue, 7/4/17, roylowenthal@... [Homebrew_PCBs] <Homebrew_PCBs@yahoogroups.com> wrote:

Subject: [Homebrew_PCBs] Re: Ferric chloride staining PCB substrate
To: Homebrew_PCBs@yahoogroups.com
Date: Tuesday, July 4, 2017, 3:20 AM


 









Oxalic acid is also sold as, "wood
bleach" usually findable in hardware or paint
stores.
Roy









#yiv3226884296 #yiv3226884296 --
#yiv3226884296ygrp-mkp {
border:1px solid #d8d8d8;font-family:Arial;margin:10px
0;padding:0 10px;}

#yiv3226884296 #yiv3226884296ygrp-mkp hr {
border:1px solid #d8d8d8;}

#yiv3226884296 #yiv3226884296ygrp-mkp #yiv3226884296hd {
color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px
0;}

#yiv3226884296 #yiv3226884296ygrp-mkp #yiv3226884296ads {
margin-bottom:10px;}

#yiv3226884296 #yiv3226884296ygrp-mkp .yiv3226884296ad {
padding:0 0;}

#yiv3226884296 #yiv3226884296ygrp-mkp .yiv3226884296ad p {
margin:0;}

#yiv3226884296 #yiv3226884296ygrp-mkp .yiv3226884296ad a {
color:#0000ff;text-decoration:none;}
#yiv3226884296 #yiv3226884296ygrp-sponsor
#yiv3226884296ygrp-lc {
font-family:Arial;}

#yiv3226884296 #yiv3226884296ygrp-sponsor
#yiv3226884296ygrp-lc #yiv3226884296hd {
margin:10px
0px;font-weight:700;font-size:78%;line-height:122%;}

#yiv3226884296 #yiv3226884296ygrp-sponsor
#yiv3226884296ygrp-lc .yiv3226884296ad {
margin-bottom:10px;padding:0 0;}

#yiv3226884296 #yiv3226884296actions {
font-family:Verdana;font-size:11px;padding:10px 0;}

#yiv3226884296 #yiv3226884296activity {
background-color:#e0ecee;float:left;font-family:Verdana;font-size:10px;padding:10px;}

#yiv3226884296 #yiv3226884296activity span {
font-weight:700;}

#yiv3226884296 #yiv3226884296activity span:first-child {
text-transform:uppercase;}

#yiv3226884296 #yiv3226884296activity span a {
color:#5085b6;text-decoration:none;}

#yiv3226884296 #yiv3226884296activity span span {
color:#ff7900;}

#yiv3226884296 #yiv3226884296activity span
.yiv3226884296underline {
text-decoration:underline;}

#yiv3226884296 .yiv3226884296attach {
clear:both;display:table;font-family:Arial;font-size:12px;padding:10px
0;width:400px;}

#yiv3226884296 .yiv3226884296attach div a {
text-decoration:none;}

#yiv3226884296 .yiv3226884296attach img {
border:none;padding-right:5px;}

#yiv3226884296 .yiv3226884296attach label {
display:block;margin-bottom:5px;}

#yiv3226884296 .yiv3226884296attach label a {
text-decoration:none;}

#yiv3226884296 blockquote {
margin:0 0 0 4px;}

#yiv3226884296 .yiv3226884296bold {
font-family:Arial;font-size:13px;font-weight:700;}

#yiv3226884296 .yiv3226884296bold a {
text-decoration:none;}

#yiv3226884296 dd.yiv3226884296last p a {
font-family:Verdana;font-weight:700;}

#yiv3226884296 ddyiv3226884296last p span {
margin-right:10px;font-family:Verdana;font-weight:700;}

#yiv3226884296 dd.yiv3226884296last p
span.yiv3226884296yshortcuts {
margin-right:0;}

#yiv3226884296 div.yiv3226884296attach-table div div a {
text-decoration:none;}

#yiv3226884296 div.yiv3226884296attach-table {
width:400px;}

#yiv3226884296 div.yiv3226884296file-title a, #yiv3226884296
div.yiv3226884296file-title a:active, #yiv3226884296
div.yiv3226884296file-title a:hover, #yiv3226884296
div.yiv3226884296file-title a:visited {
text-decoration:none;}

#yiv3226884296 div.yiv3226884296photo-title a,
#yiv3226884296 div.yiv3226884296photo-title a:active,
#yiv3226884296 div.yiv3226884296photo-title a:hover,
#yiv3226884296 div.yiv3226884296photo-title a:visited {
text-decoration:none;}

#yiv3226884296 div#yiv3226884296ygrp-mlmsg
#yiv3226884296ygrp-msg p a span.yiv3226884296yshortcuts {
font-family:Verdana;font-size:10px;font-weight:normal;}

#yiv3226884296 .yiv3226884296green {
color:#628c2a;}

#yiv3226884296 .yiv3226884296MsoNormal {
margin:0 0 0 0;}

#yiv3226884296 o {
font-size:0;}

#yiv3226884296 #yiv3226884296photos div {
float:left;width:72px;}

#yiv3226884296 #yiv3226884296photos div div {
border:1px solid
#666666;min-height:62px;overflow:hidden;width:62px;}

#yiv3226884296 #yiv3226884296photos div label {
color:#666666;font-size:10px;overflow:hidden;text-align:center;white-space:nowrap;width:64px;}

#yiv3226884296 #yiv3226884296reco-category {
font-size:77%;}

#yiv3226884296 #yiv3226884296reco-desc {
font-size:77%;}

#yiv3226884296 .yiv3226884296replbq {
margin:4px;}

#yiv3226884296 #yiv3226884296ygrp-actbar div a:first-child {
margin-right:2px;padding-right:5px;}

#yiv3226884296 #yiv3226884296ygrp-mlmsg {
font-size:13px;font-family:Arial, helvetica, clean,
sans-serif;}

#yiv3226884296 #yiv3226884296ygrp-mlmsg table {
font-size:inherit;font:100%;}

#yiv3226884296 #yiv3226884296ygrp-mlmsg select,
#yiv3226884296 input, #yiv3226884296 textarea {
font:99% Arial, Helvetica, clean, sans-serif;}

#yiv3226884296 #yiv3226884296ygrp-mlmsg pre, #yiv3226884296
code {
font:115% monospace;}

#yiv3226884296 #yiv3226884296ygrp-mlmsg ∗ {
line-height:1.22em;}

#yiv3226884296 #yiv3226884296ygrp-mlmsg #yiv3226884296logo {
padding-bottom:10px;}


#yiv3226884296 #yiv3226884296ygrp-msg p a {
font-family:Verdana;}

#yiv3226884296 #yiv3226884296ygrp-msg
p#yiv3226884296attach-count span {
color:#1E66AE;font-weight:700;}

#yiv3226884296 #yiv3226884296ygrp-reco
#yiv3226884296reco-head {
color:#ff7900;font-weight:700;}

#yiv3226884296 #yiv3226884296ygrp-reco {
margin-bottom:20px;padding:0px;}

#yiv3226884296 #yiv3226884296ygrp-sponsor #yiv3226884296ov
li a {
font-size:130%;text-decoration:none;}

#yiv3226884296 #yiv3226884296ygrp-sponsor #yiv3226884296ov
li {
font-size:77%;list-style-type:square;padding:6px 0;}

#yiv3226884296 #yiv3226884296ygrp-sponsor #yiv3226884296ov
ul {
margin:0;padding:0 0 0 8px;}

#yiv3226884296 #yiv3226884296ygrp-text {
font-family:Georgia;}

#yiv3226884296 #yiv3226884296ygrp-text p {
margin:0 0 1em 0;}

#yiv3226884296 #yiv3226884296ygrp-text tt {
font-size:120%;}

#yiv3226884296 #yiv3226884296ygrp-vital ul li:last-child {
border-right:none !important;
}
#yiv3226884296