Orchid is so much fun!. Chlorine patinas for silver? Take
precautions: follow along here…
Chlorine (chemical symbol Cl) is a member of the halogen family
(located in Group VIIA of the periodic table) and are a particular
class of “nonmetals”. The halogens are particularly reactive
(especially with the alkali metals). The alkali metals are the
elements located in Group IA of the periodic table. These nonmetals
are located on the upper right side of the periodic table. Nonmetals
are separated from metals (like Cu, Au & Ag - copper/gold/silver) by
a line that cuts diagonally through that region of the periodic
Important Chemical properties of Chlorine:
Chlorine is “corrosive” to some forms of plastics, rubber, and
coatings. It is soluble in chlorides, alkali, and alcohol’s.
Chlorine (in it’s gas state) reacts explosively or forms explosive
compounds with many common substances such as acetylene, ether,
turpentine, ammonia, fuel gas, hydrogen, and finely divided metals.
It is a noncombustible gas, and a strong “oxidizer”. Remember the
thread about rusting files?
Chlorine (in it’s gas state) is heavier than air, and less
water-soluble than ammonia. Water dissolves about twice its volume
of chlorine gas, forming a mixture of hydrochloric and hypochlorous
acids. It can be an eye irritant, respiratory irritant.
Here is the danger: Chlorine (Cl) reacts with ammonia or acids to
form toxic gas. Danger: Most chlorine bleaches are labeled as a
"corrosive". Household bleach (used to whiten fabrics or remove mold
from surfaces) is a 5% solution of a stabilized form of chlorine.
Do Not Mix household bleach with acid-containing or
ammonia-containing (cleaner) substances. Dangerous levels of a very
harmful gas can be created by these mixtures.
Remember those pH levels discussed in another thread previously?
Thinking this through; we do not want to unintentionally make our
studios into little laboratory experiments. Vinegar (pH of about 3.0
- acidic) differs from ammonia (pH of about 12); the smaller the pH
number the more acidic - conversely, the higher the pH number the