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
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---------- 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