Yahoo Groups archive

Homebrew PCBs

Index last updated: 2026-04-28 23:05 UTC

Message

35% H2O2 and HCL - Ratio?

2010-06-18 by Jan Kok

No idea why this message got sent out with empty From, Subject and To
fields, but it looks like a legitimate message, so I'm forwarding it
with the original intended Subject line. - Jan


---------- Forwarded message ----------
From:  <>
Date: Fri, Jun 18, 2010 at 2:21 PM
Subject:
To:


com.yahoo@sam_sha4u1987 0 1
com.yahoo@sam_shah579 0 1
com.yahoo@sam_shaikh337 0 2
com.yahoo@sam_shar7 0 1
com.yahoo@sam_sharghy 0 3
com.yahoo@sam_shark82 0 2
com.yahoo@sam_sharma0072008 0 3
com.yahoo@sam_sharma113 0 8
com.yahoo@sam_sharma2004 0 1
com.yahoo@sam_shayeste 0 1
com.yahoo@sam_shekarnabi 0 1
com.yahoo@sam_shepherd 0 1
com.yahoo@sam_shihadeh 0 1
com.yahoo@sam_shiji 0 1
ced: from [69.147.65.147] by n46.bullet.mail.sp1.yahoo.com with NNFMP;
18 Jun 2010 20:21:09 -0000
Received: from [98.137.34.184] by t10.bullet.mail.sp1.yahoo.com with
NNFMP; 18 Jun 2010 20:21:09 -0000
X-Sender: msilv3r@...
X-Apparently-To: Homebrew_PCBs@yahoogroups.com
X-Received: (qmail 97297 invoked from network); 18 Jun 2010 20:16:00 -0000
X-Received: from unknown (98.137.34.45)
 by m3.grp.sp2.yahoo.com with QMQP; 18 Jun 2010 20:16:00 -0000
X-Received: from unknown (HELO n42b.bullet.mail.sp1.yahoo.com) (66.163.168.156)
 by mta2.grp.sp2.yahoo.com with SMTP; 18 Jun 2010 20:16:00 -0000
X-Received: from [69.147.65.148] by n42.bullet.mail.sp1.yahoo.com with
NNFMP; 18 Jun 2010 20:12:33 -0000
X-Received: from [98.137.34.72] by t11.bullet.mail.sp1.yahoo.com with
NNFMP; 18 Jun 2010 20:12:33 -0000
To: Homebrew_PCBs@yahoogroups.com
Message-ID: <hvgjvg+npfj@...>
User-Agent: eGroups-EW/0.82
X-Mailer: Yahoo Groups Message Poster
6
From: "msilv3r" <msilv3r@...>
X-Yahoo-Profile: msilv3r
X-eGroups-Approved-By: alienrelics <alienrelics@...> via web; 18
Jun 2010 20:21:09 -0000
Sender: Homebrew_PCBs@yahoogroups.com
MIME-Version: 1.0
Mailing-List: list Homebrew_PCBs@yahoogroups.com; contact
Homebrew_PCBs-owner@yahoogroups.com
Delivered-To: mailing list Homebrew_PCBs@yahoogroups.com
List-Id: <Homebrew_PCBs.yahoogroups.com>
Precedence: bulk
List-Unsubscribe: <mailto:Homebrew_PCBs-unsubscribe@yahoogroups.com>
Date: Fri, 18 Jun 2010 20:12:32 -0000
Subject: [Homebrew_PCBs] 35% H2O2 and  HCL - Ratio?
Reply-To: Homebrew_PCBs@yahoogroups.com
X-Yahoo-Newman-Property: groups-email-tradt-m
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

Hi. I'm new to this. I recently got some H202 and HCL from a chemical
company. The H2O2 is 35%. I'm not sure what percentage the HCL is,
however it's labeled "Hydrochloric Acid, 8, PG II." I don't know what
ratio to use. Should I dilute the H202 with water? I'm worried about
the combination turning into boiling water. Also, are lined latex
gloves, the kind you use for kitchen cleaning, sufficient gloves? Does
it matter which you pour in first? I plan on doing this outside. I
have a plastic container for both the etching and the remaining
enchant.

Thanks.
-Mike



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

Be sure to visit the group home and check for new Links, Files, and Photos:
http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.