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Thread: hydrofloric acid gold etching services in california?

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  1. #1
    if it flies, it dies

    Jan 2015
    gpx 4500 sdc 2300
    492
    1077 times
    ducks, bucks and gold

    hydrofloric acid gold etching services in california?

    wondering if anyone can guide me in the right direction. i cannot find any information pertaining to what i am looking for. i have accumulated a few nice pieces and would like to have one etched. any help is appreciated. thanks
    gold tramp likes this.
    got the fever? dont scratch the itch.

  2. #2
    us
    Dennis

    Jan 2012
    Montana
    White's MXT
    6,328
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    All Types Of Treasure Hunting
    Banner Finds (1)
    If I am not mistaken Hydrofloric acid is Very dangerous to be messing with. That acid when dropped on your skin will absorb into your skin and eat away your bone. Very dangerous to be messing with. When I worked at a refinery, only specially trained personal were allowed to be around it. Special extra thick gloves used along with a full protected body suit.
    Last edited by old digger; Jan 01, 2019 at 01:09 AM.

  3. #3
    if it flies, it dies

    Jan 2015
    gpx 4500 sdc 2300
    492
    1077 times
    ducks, bucks and gold
    right. and is not legal to possess without a special license, nor would i ever think of getting anywhere near that stuff. which is why i am searching for someone who has the qualifications and experience in the services i am seeking
    KevinInColorado and 63bkpkr like this.
    got the fever? dont scratch the itch.

  4. #4

    Aug 2017
    431
    443 times
    All Types Of Treasure Hunting
    Once upon a time...There was an assaying service in Sacramento CA...His name was Smith I believe...He advertised in the ICMJ...I gave him 4.86lbs of high grade ore with wire gold in it...Needless to say...I believed he used hydrofloric acid on the ore to free the wire gold from the matrix...

    He went out of business needless to say...And who knows what became of the beautiful wire gold that he recovered from the ore I gave him...lol...Oh well...I wonder IF he had any luck in finding where the ore came from...

    I gave some of what I call platinum ore to a Paul on this site...I believe he is prolly having as much luck finding where it came from as well...rofl...

    It is where one finds it...What ever the IT may be...

    Ed T

  5. #5
    us
    Mar 2012
    1,416
    1632 times
    All Types Of Treasure Hunting
    Special license ? As of when ? I bought some a year and a half ago no problem. I bought it from a company in Ca..
    Clay Diggins likes this.

  6. #6
    Charter Member
    us
    Nov 2010
    The Great Southwest
    3,328
    9648 times
    Prospecting
    No special license needed or available.

    Dave Variboff at Gold Bay can probably do this for you. His number is on the website.

    Heavy Pans

  7. #7
    bug
    bug is offline

    Jun 2008
    Nor Cal
    166
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    All Types Of Treasure Hunting
    Im not experienced with the exact methods but I know there are other ways they are removing quartz by heating and shocking with water and using vibrating pick type tools to pop off the quartz slowly.
    Gravelwasher likes this.

  8. #8
    Make America Great Again

    Apr 2013
    Oregon
    1,556
    3554 times
    All Types Of Treasure Hunting
    I think Oakview2 has posted some nice gold on quartz specimens and
    says he uses muratic heated in an old crock pot to etch off the host rock to the desired look.
    et1955 and russau like this.
    " A pessimist is an optimist with experience "

  9. #9
    if it flies, it dies

    Jan 2015
    gpx 4500 sdc 2300
    492
    1077 times
    ducks, bucks and gold
    when i was looking for someone who specializes in etching n the internet what poped up was hf for sale. out of curiosity i clicked on the site, and it said it only sells to a certified lab. i would hope this stuff is not readily available to the public.
    got the fever? dont scratch the itch.

  10. #10
    if it flies, it dies

    Jan 2015
    gpx 4500 sdc 2300
    492
    1077 times
    ducks, bucks and gold
    Quote Originally Posted by bug View Post
    Im not experienced with the exact methods but I know there are other ways they are removing quartz by heating and shocking with water and using vibrating pick type tools to pop off the quartz slowly.
    the only way to keep the gold intact is by chemical process, otherwise it will be ruined
    got the fever? dont scratch the itch.

  11. #11
    if it flies, it dies

    Jan 2015
    gpx 4500 sdc 2300
    492
    1077 times
    ducks, bucks and gold
    Quote Originally Posted by Clay Diggins View Post
    No special license needed or available.

    Dave Variboff at Gold Bay can probably do this for you. His number is on the website.

    Heavy Pans
    i stand corrected
    Clay Diggins likes this.
    got the fever? dont scratch the itch.

  12. #12
    us
    Northern California

    Aug 2007
    Southern California
    XLT, GMT, 6000D Coinmaster
    3,802
    4087 times
    All Types Of Treasure Hunting
    beekbuster,

    hydrofluoric Acid (a solution of HF in water) as you've indicated is Very Bad Stuff! There is a limit of human exposure with this acid, likely you can find it on an MSDS sheet (Material Safety Data Sheet or they may have abbreviated it to MSD. There are three exposure limits to this material, after the first exposure the unlucky person becomes very sick including removing everything from their stomach they've eaten in the last three months. After the victim gets over that they put a medical alert bracelet on their wrist that lets ER people know how to treat the victim should they have a second exposure. At the time of the second exposure the victim will be unconscious so they will not be able to explain to the ER folks what happened. After the third exposure to HF they will place the victims body into a heavy plastic bag because the victim has died. Why? HF builds up in the human body, similar to lead, once the maximum quantity has been stored up it keeps the victim from the fourth exposure.

    I could easily be incorrect but I thought Nitric Acid could be used for etching host rock away from Gold! It depends on the strength of the acid to work, more or less true for all acids, and the host rock material.

    Regardless of the acid suit up, that would be a rubber apron with gloves above the elbows(acid specific materials need to be used: neoprene, natural rubber, etc.), a breathing mask of the proper type and and eye protection (minimum glasses but more likely a hood or mask). I know You care which is why you posted your question and it is wise of you to care as acids will take skin, eyes, etc. up to and including a persons life IF they do not take proper safety precautions.

    Also, TEST a tiny piece of the host rock in a very small quantity of the acid. If there is a VIOLENT REACTION you want only small quantities of each to be involved. Violent reactions can be from heavy bubbling to an explosion like reaction, either of which can throw the acid all over everything in the general area of the Accident.

    Work carefully with these materials, do your research. The results of careful etching work are absolutely beautiful!...............63bkpkr
    Last edited by 63bkpkr; Jan 01, 2019 at 08:51 PM.
    Out searching w/GMT & friend under my arm

  13. #13
    us
    Jul 2004
    Angels Camp,Ca.
    734
    669 times
    With any of the acids remember these words...Do like you oughta add acid to water...
    63bkpkr, Clay Diggins and et1955 like this.

  14. #14
    Charter Member
    us
    Oct 2008
    Fort Dick, Ca.
    518
    944 times
    All Types Of Treasure Hunting
    I second Clays suggestion. I’ve done business with Dave Variboff of Gold Bay a number of times. Straight shooter. Besides the question of this thread, check out his business / website. He deals in gold.

    Mike

  15. #15
    us
    Coil Swinger

    Jan 2011
    El Dorado County
    Minelab
    502
    642 times
    Banner Finds (1)
    Dave is a good guy to deal with and knows a thing or two about how to handle high quality specimen gold.

    I saw a picture of some of his recent finds and work on a 4oz beautiful specimen from the Colorado Quartz mine.

    I inquired on the pricing of such a nice pc and found out it is way to rich for my blood, 4oz specimen 150k$

    If I had a pc to pretty up Dave is the 1st person to get a hold of.
    Will work for gold dust.

 

 
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