Re: Handling Toxic Chemicals

From: Kate Mahoney ^lt;>
Date: 12/08/04-04:41:58 PM Z
Message-id: <00b301c4dd77$2153c000$1c1cf6d2@oemcomputer>

Do you have especially big crystals? I've never had to grind amm. di - it
goes into solution from the crystals I use really easily. I always use a
respirator with filters rather than a mask for the dichromate - better safe
than sorry. I use really long gloves, wear an old long sleeeved cotton shirt
and a plastic butcher apron. I may look like a freak but at least
I'm as safe as I can get....but wait - I never thought about a hair net!!!

----- Original Message -----
From: "Michael Koch-Schulte" <>
To: <>
Sent: Thursday, December 09, 2004 8:54 AM
Subject: Handling Toxic Chemicals

> Are there some tricks or basic practices to minimizing toxic dust kicking
> when mixing powders into solution? I'm putting together my first cyanotype
> and gum kits so
> I guess the main ones I'm concerned about are the ammonium and potassium
> dichromates. I'll be wearing gloves, goggles and a mask. I was also
> wondering if anyone has ever used a "pill crusher" rather than a mortar
> pestle for grinding crystals?
Received on Wed Dec 8 17:08:28 2004

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