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Ultrasonic cleaner recommendations

Discussion in 'Repairing your own Gear' started by flymolo, Apr 7, 2021.

  1. couv

    couv Instructor, Scuba

    # of Dives: 1,000 - 2,499
    Location: 13th floor of the Ivory Tower
    6,019
    3,871
    From the Biox date sheet: pH 2.2
    Vinegar has a ph of 2.9 which makes it less acidic than Biox
     
  2. BoltSnap

    BoltSnap Dive Charter

    # of Dives: I'm a Fish!
    Location: Nomad
    6,742
    2,799
    Why so? If you mix "vinegar" and water properly and set the timer for an appropriate time, what is the harm here?
     
  3. lowwall

    lowwall Contributor

    # of Dives: 200 - 499
    Location: Chicago
    1,786
    1,868
    From the Biox data page:

    Colour - clear
    Density - 1.02 SG
    Odour - very slight organic odour
    pH - 2.2
    Boiling point - 96 C.


    That just happens to be the ph of lemon juice. Straight vinegar is less acidic and we are talking about a 50/50 vinegar/water mix.
     
  4. rsingler

    rsingler Scuba Instructor, Tinkerer in Brass Staff Member ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Napa, California
    5,644
    7,199
    I liked the part in the MSDS about the toxic fumes if burned, and "low VOC". It's got an "ol" or an "ene" in it for sure.
    But nice marketing to the environmental crowd. Just no significant difference from the secret "Lawrence Factor Wash", I'm guessing.

    There's a limit to what you can do if you're not degreasing with carbon tetrachloride.
    A detergent, a surfactant and an acid. They're all variations on that theme, right @couv ?
     
  5. couv

    couv Instructor, Scuba

    # of Dives: 1,000 - 2,499
    Location: 13th floor of the Ivory Tower
    6,019
    3,871
    Yes, Lawrence Factor Wash, Global, Tumble Juice, etc (correct me if I'm wrong) all have as the active ingredient phosphoric acid. The concentration is sometimes hard to figure, but for an example let's look at LFW with a specific gravity of 1.14 (from their MSDS). Compare with phosphoric acid at 85% has a SG of ~ 1.7 / 50% ~ 1.34 / 25% ~ 1.15 so LFW must be ~ 24% phosphoric acid as delivered.

    I'm terrible at math and chemistry, so I welcome any corrections. The above is an interpolation made from MSDS and this chart:

    Phosphoric acid specific gravity table.JPG
     
  6. rsingler

    rsingler Scuba Instructor, Tinkerer in Brass Staff Member ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Napa, California
    5,644
    7,199
    But, but, but... that's just Coca-Cola! :D :rofl3:
    Screenshot_20210415-084349_Google.jpg
     
    rob.mwpropane and couv like this.
  7. couv

    couv Instructor, Scuba

    # of Dives: 1,000 - 2,499
    Location: 13th floor of the Ivory Tower
    6,019
    3,871
    Phosphoric acid is what puts the TANG! in Coca-Cola, and the reason Coke is a fairly good solvent to use on corrosion.

    (You wanna go off on a tangent?) I don't do coke often, but when I do I like Coke from Mexico.
     
    rob.mwpropane likes this.
  8. sh1513

    sh1513 Contributor

    # of Dives: 25 - 49
    Location: Birmingham, UK
    71
    31
    Judgemental much? :popcorn:

    Its getting like FB, can't have an opinion without someone jumping on the bandwagon and slagging you off for it.
    In future I'll just keep my opinions to myself :p
     
    couv and rob.mwpropane like this.
  9. rob.mwpropane

    rob.mwpropane Contributor

    1,669
    1,027
    Sir this is the internet.... fact checking and slinging mud is what happens here (not to mention the intimate details of the differences between vinegar, coke, and uh, ...sniff sniff...cokeo_O)

    Relax, share your opinion, just keep an open mind. We've all been wrong before:poke::D
     
    TTPaws, RyanT and -JD- like this.
  10. couv

    couv Instructor, Scuba

    # of Dives: 1,000 - 2,499
    Location: 13th floor of the Ivory Tower
    6,019
    3,871
    Well, if that is directed at me, apologies if I did not use diplomacy. However, the intent was to point out that if one wants to avoid acid to cleaners, then Biox is not a good choice. There are alkaline cleaners available that may suit that need.

    Here is a link to one such product.
    Special Cleaner - Gallon
     

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