Demystify: 

Hi Elsa - I have been wondering that also.� Most references are for de minimus use of dyes and their disposal.� For FIFRA Requirements cannot exceed 2% of a pesticide formulation (HSDB).� This could cost a bundle.� I can't wait to hear the concentration of the dye in this soup.

Monona - What about FDC� - you said you had that under control?� Are there any regs here that could stop the "application" of this to skin?

All batches of this color additive when used in cosmetics shall meet the specifications, uses and restrictions, and labeling regulations contained in 21 CFR Part 74 and be certified in accordance with regulations in 21 CFR Part 80.
[21 CFR 74.2340 (USFDA); U.S. National Archives and Records Administration's Electronic Code of Federal Regulations. Available from, as of June 23, 2011: http://www.gpoaccess.gov/ecfr **PEER REVIEWED**�

Sammye

I couldn't resist to join to the discussion. I worked in a wastewater plant and I wonder about the disposal of the chemicals after � the use. How much it is going to cost? This is an environmental issue too.

Elsa Munevar-Mendoza

Chemist.

-----Original Message-----
From: ACTSNYC**At_Symbol_Here**CS.COM
Sent: Nov 30, 2012 1:43 PM
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
Subject: Re: [DCHAS-L] Need a consulting organic chemist on safety issue

Oh you are SO right. I did a whole radio program on WNYC on just this
issue. But The organization I'm dealing with is not going to back down without
a fight. That's why I want someone with heavy duty scenice creds to back me
up on this. And I am reaching out to the Health Dept. But they usually
consider these kinds of things as workplace safety issues since the public is
not involved. OSHA has no standards for this kind of thing other than the
general duty clause.

What's a Mother to do?

Monona




In a message dated 11/30/2012 3:18:12 PM Eastern Standard Time,
kls_1**At_Symbol_Here**COX.NET writes:
>
>
> My initial snarky answer is that the only expert you need to put a halt to
> this idea is the local health dept., but if you want an example that might
> resonate with theatre folks, ask them why they think it is necessary to
> change the water in the bath after a professional pedicure. This would be
> the same reason they would not want to get into that tub night after night.
> I remember the pedicure industry was looking for a way to treat the water,
> like a swimming pool, so that people wouldn't have to change it so often,
> but they were unsuccessful (again, ten years ago).
>
>
> Essentially, a swimming pool is one huge buffer system that requires
> constant circulation and filtration to maintain a proper balance. Balance means
> that the buffer works to keep the water in the pH range in which the
> system is effective at killing the bacteria. When the water is out of balance,
> you cannot get the water into the proper pH range to kill bacteria. That is
> why you need to constantly circulate the water through the filter. When
> you take the water to higher temperatures, as in hot tubs, it is even harder
> to keep balance. Here is a good article explaining what is taking place:
>
>
>
> http://www.eric.ed.gov/ERICWebPortal/detail?accno=EJ773341#.ULilkvnyxys.email
>
>
> The thing is, treated water can be very sensitive when trying to disinfect
> regular swimming activities, but when you throw in a bunch of other
> chemicals to make the water look like blood, and the fact that there is no
> circulation or filtration, then I think all bets are off.
>
>
> Here are some more resources from the CDC that are geared for the general
> population.
>
>
> http://www.cdc.gov/healthywater/swimming/
>
>
> Karen
>
>
>
>
>
>
>
>

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