If you do the calculation, you generally need at least about 4 liters of liquid to build up enough charge for ignition under the best case scenario. So if you are using smaller bottles you are generally ok.
Of course the best and safest way s to put a conductive rod I the glass bottle, ground or bond it, and pour the liquid over the rod.
Richard Palluzi
BE(ChE), ME(ChE), PE, CSP,FAIChE
Pilot plant and laboratory consulting, safety, design, reviews, and training
www.linkedin.com/in/richardppalluzillc/
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-----Original Message-----
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU> On Behalf Of Ralph Stuart
Sent: Tuesday, September 20, 2022 4:45 PM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: [DCHAS-L] Grounding glass containers for solvent dispensing.
A colleague sent me this question and I suspect that the DCHAS-L list can provide helpful information. I’d appreciate any thoughts people would like to share on the topic...
- Ralph
Hello,
I have noticed an increase in the usage of 20L metals cans of solvents and wanted to include some safety tips in a talk I am doing. I know that grounding is required when you are transferring Metal to Metal or Metal to Plastic because of the buildup of static electricity but I was only able to find one University that has a requirement for also grounding glass bottles. I have never seen/experienced a shock from glass so I was not sure if I should make that a best practice requirement.
Does anyone have any thoughts or experiences with glassware or glass bottles building up a static charge?
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For more information about the DCHAS-L e-mail list, contact the Divisional membership chair at membership**At_Symbol_Here**dchas.org
Follow us on Twitter @acsdchas