From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU> On Behalf Of Mark Ellison
Sent: Monday, May 8, 2023 5:09 PM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: Re: [DCHAS-L] Hazardous Fluoride Chemicals

Off the top of my head, fluorosilicic acid, hypofluorous acid, and fluoroacetic acid.

Good afternoon DCHAS,

 

It came to my attention recently that hydrofluoric acid isn’t the only chemical requiring treatment with calcium gluconate gel and segregation from glass. A brief conversation with a cleanroom friend confirmed a few I found online, but does anyone else have any chemicals, mixtures, or resources for identifying chemicals with comparable hazards as hydrofluoric acid?

 

Below I’ve listed the names of the chemicals with SDS references to HF burns, use of calcium gluconate gel, and/or that they react with glass. Any additional insight, input, or suggestions would be greatly appreciated.

 

Sulfur Hexafluoride

Ammonium Bifluoride

Ammonium Fluoride

Boron Trifluoride

Buffered oxide etchant (BOE)

Diethlyamino sulfur trifluoride (DAST)

HF-Pyridine Complex

Hydrofluoric Acid (HF)

Knolls Reagent

Lithium hexafluorophosphate

Sodium Fluoride

Sulfur tetrafluoride

Tetrafluoroboronic Acid

Xenon Difluoride

 

 

(My first request to DCHAS)

 

Best,

-P

 

Paul R. Emery, MSc

Safety Advisor

 

Yale Environmental Health and Safety

135 College Street, Suite 100

New Haven, CT 06510

Phone (203) 737-3521

Mobile (475) 261-6163

Email paul.emery**At_Symbol_Here**yale.edu

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