Since there has been a recent thread about anti-tarnish (or should
that be tarnish-resistant?) silver, I'd like to know if anyone
hashad any experience with working in the Arctic Fox so-called
anti-tarnish silver from Umicore Precious metals?
net, I was all set to order some when I read the Material Safety
Data Sheet on it.
Silver Fox contains Silver, Copper, Zinc and Indium.
The section on fume fever while soldering gave me pause to reflect.
I know MSDS are written up to be scary as can be, however given
degree of exposure when you combine soldering, sanding, polishing
exposure I just didn't want to deal with it.
SECTION 5 - REACTIVITY DATA
Chemical Stability: Product is stable under normal ambient working
conditions generally involves melting. Avoid adding any amount of
water to molten metal, as an explosion may result. Ensure all cast
items are completely solid before water quenching.
Hazardous Decomposition Products: If heated to excess in the molten
state, metal fumes may be liberated. It is strongly recommended that
casters avoid exposing this alloy to temperatures above 1010 oC.
Route of Entry: Inhalation or skin contact during use. Skin contact
in form supplied.
Effects of Acute Exposure to Material:
Inhalation of freshly formed fume may cause metal fume fever.
Initial symptoms may include dryness and irritation of the throat.
Several hours after exposure signs may include a metallic taste in
the mouth, headache, fever, chills, excessive sweating, muscle
pains, nausea, vomiting and weakness. Recovery from symptoms
reportedly occurs within 48 hrs. Metal fume is reportedly not
Skin contact with metal pieces: dermatitis is generally not expected
with this alloy. Should it occur, wash area thoroughly with soap and
water and wear gloves.
efficiency particulate filter (NIOSH APPROVED). When soldering or
brazing, consult the MSDS for the solder or brazing alloy to ensure
ventilation is suitable. References include the current version of
CSA STD. Z94.4 Selection, Care and Use of Respirator