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I recently made up a batch of silver chloride for a customer to add to cement. The reason this is done is because silver is an antibacterial/microbial. It readily kills MRSA. It prevents the growth of things like black mold, etc.
What I am curious to know is if anyone has ever attempted to find sources for this type of material. The mix ends up being a lb of silver chloride to a cubic yard of cement. That's 14 t ounces of AgCl to every cubic yard of cement. It can add up fast.
Scott
At the heart of science is an essential balance between two seemingly contradictory attitudes--an openness to new ideas, no matter how bizarre or counterintuitive they may be, and the most ruthless skeptical scrutiny of all ideas, old and new. This is how deep truths are winnowed from deep nonsense. -- Carl Sagan
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Hey scott how are you? What is the cement being used for? hospitals, top coats, walk ins any clue?Originally Posted by NobleMetalWorks
also your mixing units its a little confusing. not nick picking just clarifying. You have a avoirdupois pound and troy ounces is this correct? That's allot of silver to make cement with 10.5TOz per a yard.
Still way be to mush work to get the Ag out.
Eric
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AgCl (Silver Chloride) contains 75.25% Silver
Silver chloride: AgCl
Atomic mass of Ag: 107.9 grams
Atomic mass of Cl: 35.5 grams
Molecular mass: 107.9 + 35.5 = 143.4 grams
107.9 grams Ag / 143.4 grams AgCl = .752
35.5 grams Cl / 143.3 grams AgCl = .248
Take the results and multiply by 100 to change to a percent:
.752 × 100 = 75.2% Ag
.248 × 100 = 24.8% Cl
A cubic yard of Concrete weighs 4,050 lbs
So one lb to two tons of concrete is actually not that much at all.
The person I sold the AgCl to is using it in their basement. Since the water table is high in their area, basements tend to collect moisture.
Here are some other things AgCl are used for.
As a laboratory reagent.
A precursor to the preparation of Silver (I) Oxide, Ag2O. (It is heated in dilute NaOH solution).
• NOTE: It is very difficult to get Silver Chloride to form Pure Silver Oxide, however.
In Photography, as a sensitizer, but to a much lesser extent than Silver Bromide.
Electroplating - both electroless and as an anode in an electric cell.
Inquartation in electric arc furnaces - smelting Gold and Platinum Group Metals.
As a thin coating on the surface of Medical Electrodes for EKG machines. (Placed against the skin). Interesting, ancient Egyptians used this in instruments they performs operations with.
Antibacterial agent for concrete
Used as an anti microbial agent in some infection resistant surgical fabric materials.
Used to help prevent bacteria from growing on Latex (mixed into the Latex before it is formed).
Used to help prevent bacteria from growing on Glass (when melted into the glass).
Decorative etching of high quality steel. (Apply damp Silver Chloride to steel, let stand for several hours).
Silver chloride's low solubility makes it a useful addition to pottery glazes for the production of "Inglaze lustre".
Silver chloride is used to make Photochromic eyeglass lenses. (they darken in bright light)
The soft crystals of Silver Chloride deform under heat and pressure and are forged against polished dies to create infrared windows and lenses.
These are just some of the uses. I am able to purchase silver as scrap, refine it for a fraction of it's real value, and sell products to my customers for much less than I otherwise would be able to. I am also in the process of developing my own version of precious metal clay.
And by the way, it's good to see you Eric, nice to see a friendly face!
Scott
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