I was also bothered by the cotton sweatshirt sleeves.  Although it mentions the generation of sulfur dioxide, there is no mention of what that gas is or why a demonstrator should be concerned.

Other problems with the clip:

- the beaker was almost completely filled with sugar.  Not safe at all.

- no reference to just how hot it becomes.

- besides the obvious generation of carbon, the generation of water vapor, and the generation of sulfur dioxide (my tablet doesn't do subscripts!) part of what is given off (as a spray) is unreacted sulfuric acid.  A nasty surprise for anyone handling the carbon column.

- and of course, no reference to safety precautions or disposal.

A disappointment.

Eddie McGrath

I was disappointed to see the person doing the demo having no covering on lower arms (such as a lab coat) and using the thin disposable gloves rather than something a bit thicker and going up the arm to cover wrist and lower arm.  The splash potential is not reflected here.  Nor is a cogent explanation of what is happening, including no mention SO2 evolution.

Lee Latimer


On 12/23/15, 5:21 AM, "Frankie Wood-Black" <fwblack**At_Symbol_Here**CABLEONE.NET> wrote:

I have seen the reaction.  This is another demonstration that widely circulated.  I was a bit surprised to see where the video hit the "popular" press.  This video is on a bit larger scale than the one that typically gets circulated.  I have seen a smaller "snake" version that usually shows up around Halloween.

---

From: "Sandra Koster" <skoster**At_Symbol_Here**UWLAX.EDU>
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Sent: Tuesday, December 22, 2015 1:18:55 PM
Subject: Re: [DCHAS-L] Fwd: See the Chemical Reaction That Takes Place When Sulfuric Acid Is Poured on Household Sugar

Of course anything that gives off SO2 should be done in a hood.  Besides that I should report that a colleague who did this as a demo rinsed the residue and disposed of it in a wastebasket--which later caught the paper on fire.  Surprise, surprise!  Guess it wasn't rinsed enough.

Sandra Koster
University of Wisconsin-La Crosse

On Tue, Dec 22, 2015 at 1:02 PM, Frankie Wood-Black <fwblack**At_Symbol_Here**cableone.net> wrote:

This came out this morning.

---

From: "TheBlaze" <email**At_Symbol_Here**email.theblaze.com>
To: fwblack**At_Symbol_Here**cableone.net
Sent: Tuesday, December 22, 2015 1:00:03 PM
Subject: TheBlaze Article Shared by a friend: See the Chemical Reaction That Takes Place When Sulfuric Acid Is Poured on Household Sugar

   <https://urldefense..proofpoint.com/v2/url?u=http-3A__link.theblaze.com_click_56799db36e4adcd64fa72ec1_aHR0cDovL3RoZWJsYXplLmNvbQ_52d722740f365bf272facdd6Ba059134c&d=BQMFaQ&c=lb62iw4YL4RFalcE2hQUQealT9-RXrryqt9KZX2qu2s&r=meWM1Buqv4IQ27AlK1OJRjcQl09S1Zta6YXKalY_Io0&m=3CK06uNjbLVeo6LoVBiNtaRF5N23pferamskt_cQkTo&s=nzmOttGiOJoROsOZch-UqCneMR34__yy87RqM8oq4ng&e=>
   <https://urldefense.proofpoint.com/v2/url?u=http-3A__link.theblaze.com_click_56799db36e4adcd64fa72ec1_aHR0cHM6Ly93d3cuZmFjZWJvb2suY29tL3RoZWJsYXpl_52d722740f365bf272facdd6B4ab5a478&d=BQMFaQ&c=lb62iw4YL4RFalcE2hQUQealT9-RXrryqt9KZX2qu2s&r=meWM1Buqv4IQ27AlK1OJRjcQl09S1Zta6YXKalY_Io0&m=3CK06uNjbLVeo6LoVBiNtaRF5N23pferamskt_cQkTo&s=_4GAGKH1GKe6Xc8BOvfUFZtHTs1J8M_5HvtsW5ymseA&e=>    <https://urldefense.proofpoint.com/v2/url?u=http-3A__link.theblaze.com_click_56799db36e4adcd64fa72ec1_aHR0cHM6Ly90d2l0dGVyLmNvbS90aGVibGF6ZQ_52d722740f365bf272facdd6Bf7aafc8c&d=BQMFaQ&c=lb62iw4YL4RFalcE2hQUQealT9-RXrryqt9KZX2qu2s&r=meWM1Buqv4IQ27AlK1OJRjcQl09S1Zta6YXKalY_Io0&m=3CK06uNjbLVeo6LoVBiNtaRF5N23pferamskt_cQkTo&s=xdTB_ePyzRwh1BH-lMSKUYBypeZWHgnICp4RbQmBab8&e=>    <#151cb1899444654a_>
Hello fwblack, Frankie Wood-Black thought you might be interested in reading this story.
Thought you should be aware
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See the Chemical Reaction That Takes Place When Sulfuric Acid Is Poured on Household Sugar <https://urldefense.proofpoint.com/v2/url?u=http-3A__link.theblaze.com_click_56799db36e4adcd64fa72ec1_aHR0cDovL3d3dy50aGVibGF6ZS5jb20vc3Rvcmllcy8yMDE1LzEyLzIyL3NlZS10aGUtY2hlbWljYWwtcmVhY3Rpb24tdGhhdC10YWtlcy1wbGFjZS13aGVuLXN1bGZ1cmljLWFjaWQtaXMtcG91cmVkLW9uLWhvdXNlaG9sZC1zdWdhci8-5FdXRtX2NhbXBhaWduPVNoYXJlQnV0dG9ucyZ1dG1fc291cmNlPWVtYWlsJnV0bV9tZWRpdW09c3Rvcnk_52d722740f365bf272facdd6Ca1cb16eb&d=BQMFaQ&c=lb62iw4YL4RFalcE2hQUQealT9-RXrryqt9KZX2qu2s&r=meWM1Buqv4IQ27AlK1OJRjcQl09S1Zta6YXKalY_Io0&m=3CK06uNjbLVeo6LoVBiNtaRF5N23pferamskt_cQkTo&s=hGq6qPgagupW5SPR7atBHdM6UbHLI8jzTRGxTuBZbow&e=>
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