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Thread: gold chloride

  1. #11
    David A. Goldfarb's Avatar
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    Okay, it's a couple years since this thread, and the price of Gold Chloride has gone up.

    Artcraft--$30/gram (solid)
    PhotoFormulary--$30/gram (solid) if you buy 10 grams
    Salt Lake Metals--$26.24/gram (in 1% solution calculated by metals basis--the amount of pure gold, so about a 1.5% solution calculated the way photographers normally do it, sold in 50ml or 100ml bottles)

    Anyone finding better prices out there? Anyone good at predicting the gold market (currently around $470/oz)? If I can wait a month or two, should I?
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  2. #12

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    Considering that gold has long been the haven of choice during times of uncertainty, I don't see gold prices declining in the near term.

  3. #13
    gainer's Avatar
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    Quote Originally Posted by ann
    That is sweet of Aggie to attempt to become a high end chemist, but not necessary. At one time, about a year ago gold cholride could be found for about 7 dollars a gram. Just thought I would give it a try.
    The 13 dollar price is determined by purchasing an ounce of gold cholride; price depends on the market price, which changes from hour to hour (almost). When I talked to the source it was $362 an ounce. An ounce contains 28.35 grams of gold. Sure beats $40 dollars a gram.
    Appreciate folks looking into this for me.
    I believe the ounce used for precious metals is the Troy ounce which is 31.1 grams.
    Gadget Gainer

  4. #14
    Robert Hall's Avatar
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    Has anyone tried contacting Englehar(d)t or others that sell it fairly cheap by the 100 gram?
    Robert Hall
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    Technology is not a panacea. It alone will not move your art forward. Only through developing your own aesthetic - free from the tools that create it - can you find new dimension to your work.

  5. #15
    David A. Goldfarb's Avatar
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    I think that's Engelhard. I'll contact them.

    Checking the big suppliers, price depends on purity. What purity do I need for photographic purposes (I'm guessing it's less than is required for medical purposes)?
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  6. #16
    Robert Hall's Avatar
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    I believe Lab grade is fine. I also have another contact at work I will pull down on Monday for us.
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    Technology is not a panacea. It alone will not move your art forward. Only through developing your own aesthetic - free from the tools that create it - can you find new dimension to your work.

  7. #17
    David A. Goldfarb's Avatar
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    Thanks. I e-mailed them and it bounced, so I'll try calling during the week.

    Considering Ole's post above, the prices that others have been getting in the past, and the lab conditions that most photographers work under, I suspect 99% purity should be good enough.
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  8. #18
    Photo Engineer's Avatar
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    David, I suspect purity is related to use.

    In silver halide emulsions, the gold used must be pure of all other heavy metal contamination or you can get problems. For example, iron contamination at any time in the making of silver halide emulsions is very bad.

    So, purity above some level may be important depending on use, and the type of impurity may be important as well. This is why analytical and reagent grades are supplied with a certificate of analysis on the bottle.

    PE

  9. #19
    David A. Goldfarb's Avatar
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    Of course. I'll be using it as a toner for albumen printing.
    flickr--http://www.flickr.com/photos/davidagoldfarb/
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  10. #20
    Ian Grant's Avatar
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    $13 per gm is actually very reasonable.

    I went from being a Photographic Chemist in 1986 to being a precious metal refiner and have 18 years experience of Gold refining, many kilos of fine gold per day :-)

    Your price of $13 is actually well below the norm for laboratory grade Gold Chloride.

    Ian

    Quote Originally Posted by ann
    Have been shopping for gold chloride. Is anyone aware of a price less than 13 dollars a gram?

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