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Subject: FW: [DCHAS-L] [External] Fwd: [DCHAS-L] HF working surface decontamination solution - recommended concentration or alternate?
Date: Tuesday, August 14, 2018 at 11:28:10 AM
Author: "Harrington, Rachel" <Rachel.Harrington**At_Symbol_Here**HONEYWELL.COM> 		Next by Date:
Subject: Re: [DCHAS-L] HF working surface decontamination solution - recommended concentration or alternate?
Date: Tue, 14 Aug 2018 18:30:18 +0000
Author: David C. Finster

From: Sara J <saanjohn87**At_Symbol_Here**GMAIL.COM>
Subject: Re: [DCHAS-L] HF working surface decontamination solution - recommended concentration or alternate?
Date: Tue, 14 Aug 2018 11:31:44 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: CA+sd=8okV0xGzgRWDbc096xk7aUXB6b8oEbcQdpyBtNZ9VikBA**At_Symbol_Here**mail.gmail.com
In-Reply-To


Calgonate also has a lot of info. on HF safety and has spill kits and gels available. At my company we keep calcium carbonate on hand for any fluorinated acid spills, but we do not handle HF.

http://www.calgonate.com/safety_info.php

Sara Johnson, Ph..D.

Inorganic Chemist

The Shepherd Chemical Company

Norwood, OH 45212

sjohnson**At_Symbol_Here**shepchem.com

Cell: (810)730-8963

Office: (513) 731-1110


On Tue, Aug 14, 2018 at 11:21 AM, Paul Weller <wellerp**At_Symbol_Here**elon.edu> wrote:

Honeywell has a neutralization guide

https://www.honeywell-hfacid.com/literature/

Paul Weller

Paul Weller

Senior Science Laboratory Manager-Chemistry
Elon University

2625 Campus Box

Elon, NC 27244

Phone 336.278.6225

Location MCMI 302

wellerp**At_Symbol_Here**elon.edu

From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU> On Behalf Of Layman, Rachel
Sent: Tuesday, August 14, 2018 10:50 AM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: [DCHAS-L] HF working surface decontamination solution - recommended concentration or alternate?

Hello,

Does anyone know what percent solution of calcium hydroxide would be appropriate for decontamination of working surfaces where HF has been used, or small spill of HF known?

Or is there a better solution anyone can recommend?

Thanks,

Rachel

Rachel M. Layman, MS, CHMM, CHO

University Chemical Hygiene Officer

Environmental Health and Safety

Virginia Tech

575 Beamer Way

(540) 231-3427

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