Snail Scott on wed 14 feb 01
At 07:17 PM 2/13/01 -0800, you wrote:
>I have a cone 6 chrome/tin glaze recipe that really
>works that uses potassium di(bi)chromate. I have been
>told that this is a very unstable material and highly
>toxic...
>Joan
I've never used potassium dichromate for a
glaze, but it's used often as a patina
chemical for bronze. Yes, it's quite toxic!
Here's the MSDS, synopsized:
Inhalation of dust or fumes: irritation and
sensitization may occur.
Ingestion: may cause dizziness, pain, thirst,
fever, coma, and liver damage; death from
circulatory collapse or renal failure.
Skin contact: may cause irrtation, ulceration,
and scarring. Absorption: causes symptoms
similar to ingestion.
Eye contact: may cause redness, pain, or
conjunctivitis.
Possible carcinogen.
*Estimated fatal dose: 5 grams
If ingested, give water and induce vomiting.
(Please be very careful with this stuff!)
-Snail
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