Battery Acid? Sulfuric.

Discussion in 'Darkroom Developing and Printing' started by Gregory W Blank, Nov 1, 2004.

  1. Any idea what the percent is of regular car battery acid?
    --
    LF Website @ http://members.verizon.net/~gregoryblank

    "To announce that there must be no criticism of the President,
    or that we are to stand by the President, right or wrong,
    is not only unpatriotic and servile, but is morally treasonable
    to the American public."--Theodore Roosevelt, May 7, 1918
     
    Gregory W Blank, Nov 1, 2004
    #1
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  2. Gregory W Blank

    Alan Smithee Guest

    "Gregory W Blank" <> wrote in message
    news:tiwhd.4680$pY6.4025@trnddc04...

    > Any idea what the percent is of regular car battery acid?


    35 per cent Sulfuric Acid, or there abouts, in a proper 12 volts car
    battery. What are you going to do with it?
     
    Alan Smithee, Nov 1, 2004
    #2
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  3. Alan Smithee wrote:

    > "Gregory W Blank" <> wrote in message
    > news:tiwhd.4680$pY6.4025@trnddc04...
    >
    >
    >>Any idea what the percent is of regular car battery acid?

    >
    >
    > 35 per cent Sulfuric Acid, or there abouts, in a proper 12 volts car
    > battery. What are you going to do with it?
    >
    >


    I suspect he needs a 10% solution for some photographic purpose
    (pemanganate, dichromate, and copper sulfate bleach formulae all call
    for X ml of sulfuric acid without calling out the strength, apparently
    assuming we'll know what strength is "standard photographic" -- I've
    wondered what %, molality, molarity, or normality I'd need 10 ml of).

    --
    The challenge to the photographer is to command the medium, to use
    whatever current equipment and technology furthers his creative
    objectives, without sacrificing the ability to make his own decisions.
    -- Ansel Adams

    Donald Qualls, aka The Silent Observer http://silent1.home.netcom.com

    Opinions expressed are my own -- take them for what they're worth
    and don't expect them to be perfect.
     
    Donald Qualls, Nov 1, 2004
    #3
  4. In article <G4yhd.88703$nl.86756@pd7tw3no>,
    "Alan Smithee" <> wrote:

    > "Gregory W Blank" <> wrote in message
    > news:tiwhd.4680$pY6.4025@trnddc04...
    >
    > > Any idea what the percent is of regular car battery acid?

    >
    > 35 per cent Sulfuric Acid, or there abouts, in a proper 12 volts car
    > battery. What are you going to do with it?


    I figured it was about that, the guy at the auto battery supply said it
    was somewhat stronger than vinegar. I figured since glacial acetic
    is around 28% that this must be around the same. I am going to use it
    to process control E6,.....if my Ph meter its functional.

    Hum? I think that means I want a 3 to 1 ratio to get a 1% solution.
    --
    LF Website @ http://members.verizon.net/~gregoryblank

    "To announce that there must be no criticism of the President,
    or that we are to stand by the President, right or wrong,
    is not only unpatriotic and servile, but is morally treasonable
    to the American public."--Theodore Roosevelt, May 7, 1918
     
    Gregory W Blank, Nov 1, 2004
    #4
  5. Gregory W Blank

    Tom Phillips Guest

    Alan Smithee wrote:
    >
    > "Gregory W Blank" <> wrote in message
    > news:tiwhd.4680$pY6.4025@trnddc04...
    >
    > > Any idea what the percent is of regular car battery acid?

    >
    > 35 per cent Sulfuric Acid, or there abouts, in a proper 12 volts car
    > battery. What are you going to do with it?



    yes, what... :)
     
    Tom Phillips, Nov 2, 2004
    #5
  6. Gregory W Blank wrote:

    > In article <G4yhd.88703$nl.86756@pd7tw3no>,
    > "Alan Smithee" <> wrote:
    >
    >
    >>"Gregory W Blank" <> wrote in message
    >>news:tiwhd.4680$pY6.4025@trnddc04...
    >>
    >>
    >>>Any idea what the percent is of regular car battery acid?

    >>
    >>35 per cent Sulfuric Acid, or there abouts, in a proper 12 volts car
    >>battery. What are you going to do with it?

    >
    > Hum? I think that means I want a 3 to 1 ratio to get a 1% solution.


    Huh?? If you have 35%, you'd need to dilute it 1:34 to get a 1% solution.

    --
    The challenge to the photographer is to command the medium, to use
    whatever current equipment and technology furthers his creative
    objectives, without sacrificing the ability to make his own decisions.
    -- Ansel Adams

    Donald Qualls, aka The Silent Observer http://silent1.home.netcom.com

    Opinions expressed are my own -- take them for what they're worth
    and don't expect them to be perfect.
     
    Donald Qualls, Nov 2, 2004
    #6
  7. In article <LEAhd.38417$>,
    Donald Qualls <> wrote:

    > > Hum? I think that means I want a 3 to 1 ratio to get a 1% solution.

    >
    > Huh?? If you have 35%, you'd need to dilute it 1:34 to get a 1% solution.


    Something did not compute thanks.
    --
    LF Website @ http://members.verizon.net/~gregoryblank

    "To announce that there must be no criticism of the President,
    or that we are to stand by the President, right or wrong,
    is not only unpatriotic and servile, but is morally treasonable
    to the American public."--Theodore Roosevelt, May 7, 1918
     
    Gregory W Blank, Nov 2, 2004
    #7
  8. Gregory W Blank

    Tom Phillips Guest

    Gregory W Blank wrote:
    >
    > In article <G4yhd.88703$nl.86756@pd7tw3no>,
    > "Alan Smithee" <> wrote:
    >
    > > "Gregory W Blank" <> wrote in message
    > > news:tiwhd.4680$pY6.4025@trnddc04...
    > >
    > > > Any idea what the percent is of regular car battery acid?

    > >
    > > 35 per cent Sulfuric Acid, or there abouts, in a proper 12 volts car
    > > battery. What are you going to do with it?

    >
    > I figured it was about that, the guy at the auto battery supply said it
    > was somewhat stronger than vinegar. I figured since glacial acetic
    > is around 28% that this must be around the same. I am going to use it
    > to process control E6,.....if my Ph meter its functional.


    I'd think there might be a question of purities (i.e.,
    containing a number of unquanitifiable imputities.)
    Probably better to use a reagent grade where the
    normality (36N/100%) and purity is known.

    Then again at the minute amount of 5N you use it might
    be fine as long as you get the correct dilution.
    >
    > Hum? I think that means I want a 3 to 1 ratio to get a 1% solution.
    > --
    > LF Website @ http://members.verizon.net/~gregoryblank
    >
    > "To announce that there must be no criticism of the President,
    > or that we are to stand by the President, right or wrong,
    > is not only unpatriotic and servile, but is morally treasonable
    > to the American public."--Theodore Roosevelt, May 7, 1918
     
    Tom Phillips, Nov 2, 2004
    #8
  9. Gregory W Blank

    Alan Smithee Guest

    "Gregory W Blank" <> wrote in message
    news:iMAhd.4376$RA4.3685@trnddc06...
    > In article <LEAhd.38417$>,
    > Donald Qualls <> wrote:
    >
    > > > Hum? I think that means I want a 3 to 1 ratio to get a 1% solution.

    > >
    > > Huh?? If you have 35%, you'd need to dilute it 1:34 to get a 1%

    solution.
    >
    > Something did not compute thanks.


    You're using new acid right. You're not dumping your car's battery into a
    grad right? The car battery acid would have a lot of lead compounds in
    solution I think.
     
    Alan Smithee, Nov 2, 2004
    #9
  10. In article <qXAhd.90484$nl.60997@pd7tw3no>,
    "Alan Smithee" <> wrote:

    > You're using new acid right. You're not dumping your car's battery into a
    > grad right? The car battery acid would have a lot of lead compounds in
    > solution I think.


    Its fresh, and only cost two bucks.
    --
    LF Website @ http://members.verizon.net/~gregoryblank

    "To announce that there must be no criticism of the President,
    or that we are to stand by the President, right or wrong,
    is not only unpatriotic and servile, but is morally treasonable
    to the American public."--Theodore Roosevelt, May 7, 1918
     
    Gregory W Blank, Nov 2, 2004
    #10
  11. In article <>,
    Tom Phillips <> wrote:

    > I'd think there might be a question of purities (i.e.,
    > containing a number of unquanitifiable imputities.)
    > Probably better to use a reagent grade where the
    > normality (36N/100%) and purity is known.
    >
    > Then again at the minute amount of 5N you use it might
    > be fine as long as you get the correct dilution.


    I suppose its possible its not pure, but for two bucks for almost
    two liters I couldn't refuse. I'll be trying it on test strips first.

    The concentration is more to my liking than reagent grade
    meerly do to the handling issues.

    I'll be calling B&H for control strips tommorrow (which is a special order)
    any where you know of the might stock actually them?
    --
    LF Website @ http://members.verizon.net/~gregoryblank

    "To announce that there must be no criticism of the President,
    or that we are to stand by the President, right or wrong,
    is not only unpatriotic and servile, but is morally treasonable
    to the American public."--Theodore Roosevelt, May 7, 1918
     
    Gregory W Blank, Nov 2, 2004
    #11
  12. Gregory W Blank

    Alan Smithee Guest

    "Gregory W Blank" <> wrote in message
    news:O3Bhd.4384$RA4.1029@trnddc06...
    > In article <qXAhd.90484$nl.60997@pd7tw3no>,
    > "Alan Smithee" <> wrote:
    >
    > > You're using new acid right. You're not dumping your car's battery into

    a
    > > grad right? The car battery acid would have a lot of lead compounds in
    > > solution I think.

    >
    > Its fresh, and only cost two bucks.


    You never know how cheap some people are though...
     
    Alan Smithee, Nov 2, 2004
    #12
  13. Gregory W Blank

    Tom Phillips Guest

    Gregory W Blank wrote:
    >
    > In article <>,
    > Tom Phillips <> wrote:
    >
    > > I'd think there might be a question of purities (i.e.,
    > > containing a number of unquanitifiable imputities.)
    > > Probably better to use a reagent grade where the
    > > normality (36N/100%) and purity is known.
    > >
    > > Then again at the minute amount of 5N you use it might
    > > be fine as long as you get the correct dilution.

    >
    > I suppose its possible its not pure, but for two bucks for almost
    > two liters I couldn't refuse. I'll be trying it on test strips first.
    >
    > The concentration is more to my liking than reagent grade
    > meerly do to the handling issues.
    >
    > I'll be calling B&H for control strips tommorrow (which is a special order)
    > any where you know of the might stock actually them?


    It's been years since I knew of someone who kept a stock.

    A good E6 lab might (or would sell some) but usually they
    use the rolls. You want the 5 inch strips.

    Make sure they ship them on ice...
     
    Tom Phillips, Nov 2, 2004
    #13
  14. In article <xlBhd.90549$nl.24890@pd7tw3no>,
    "Alan Smithee" <> wrote:

    > You never know how cheap some people are though...


    Are you speaking for yourself :) Or just in general ?
    --
    LF Website @ http://members.verizon.net/~gregoryblank

    "To announce that there must be no criticism of the President,
    or that we are to stand by the President, right or wrong,
    is not only unpatriotic and servile, but is morally treasonable
    to the American public."--Theodore Roosevelt, May 7, 1918
     
    Gregory W Blank, Nov 2, 2004
    #14
  15. Gregory W Blank <> wrote in message news:<tiwhd.4680$pY6.4025@trnddc04>...
    > Any idea what the percent is of regular car battery acid?


    The acid sold as a replacement electrolyte in car batteries is
    around 35% Sulfuric by weight. The electrolyte in the battery varies
    in concentration depending on the condition of charge. At full charge
    it is around 40% at discharge its around 10%.
    Most photographic formulas call for concentrated Sulfuric Acid
    which is between 93% and 98% by weight.

    Richard Knoppow
    Los Angeles, CA, USA
     
    Richard Knoppow, Nov 2, 2004
    #15
  16. On Tue, 02 Nov 2004 01:10:11 GMT, Gregory W Blank
    <> wrote:

    >
    >I'll be calling B&H for control strips tommorrow (which is a special order)
    >any where you know of the might stock actually them?


    Yoda?



    Robert Vervoordt, MFA
     
    Robert Vervoordt, Nov 2, 2004
    #16
  17. Gregory W Blank wrote:

    > In article <qXAhd.90484$nl.60997@pd7tw3no>,
    > "Alan Smithee" <> wrote:
    >
    >
    >>You're using new acid right. You're not dumping your car's battery into a
    >>grad right? The car battery acid would have a lot of lead compounds in
    >>solution I think.

    >
    >
    > Its fresh, and only cost two bucks.


    Cool, and that's from a battery retailer? I'll need some for bleach
    when I'm ready to do reversals...

    --
    The challenge to the photographer is to command the medium, to use
    whatever current equipment and technology furthers his creative
    objectives, without sacrificing the ability to make his own decisions.
    -- Ansel Adams

    Donald Qualls, aka The Silent Observer http://silent1.home.netcom.com

    Opinions expressed are my own -- take them for what they're worth
    and don't expect them to be perfect.
     
    Donald Qualls, Nov 2, 2004
    #17
  18. Richard Knoppow wrote:

    > Most photographic formulas call for concentrated Sulfuric Acid
    > which is between 93% and 98% by weight.
    >


    AHA!!

    Thank you, Richard! I've been looking all over for that information --
    I've got a number of formulae for non-halogenating bleaches, for use in
    B&W reversal, that call for X ml of sulfuric acid -- without specifying
    what strength. You just filled in the missing piece...

    --
    The challenge to the photographer is to command the medium, to use
    whatever current equipment and technology furthers his creative
    objectives, without sacrificing the ability to make his own decisions.
    -- Ansel Adams

    Donald Qualls, aka The Silent Observer http://silent1.home.netcom.com

    Opinions expressed are my own -- take them for what they're worth
    and don't expect them to be perfect.
     
    Donald Qualls, Nov 2, 2004
    #18
  19. Gregory W Blank

    Tom Phillips Guest

    Robert Vervoordt wrote:
    >
    > On Tue, 02 Nov 2004 01:10:11 GMT, Gregory W Blank
    > <> wrote:
    >
    > >
    > >I'll be calling B&H for control strips tommorrow (which is a special order)
    > >any where you know of the might stock actually them?

    >
    > Yoda?
    >
    > Robert Vervoordt, MFA


    Well, I wouldn't have put ot quite that way,
    but...
     
    Tom Phillips, Nov 2, 2004
    #19
  20. Gregory W Blank

    Tom Phillips Guest

    Donald Qualls wrote:
    >
    > Richard Knoppow wrote:
    >
    > > Most photographic formulas call for concentrated Sulfuric Acid
    > > which is between 93% and 98% by weight.
    > >

    >
    > AHA!!
    >
    > Thank you, Richard! I've been looking all over for that information --
    > I've got a number of formulae for non-halogenating bleaches, for use in
    > B&W reversal, that call for X ml of sulfuric acid -- without specifying
    > what strength. You just filled in the missing piece...


    I fail to see why that would be such a mystery.

    Reagent grade is _standard_, as I also advised Greg.
    But battery acid may work...
     
    Tom Phillips, Nov 2, 2004
    #20
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