EFNIR: Tintenlabor New Iron Gall Ink 2 Dark Green / Black

[yazeh]

As chemistry was my favorite subject at school and I am very busy at my ink reviewing lab,  I asked ChatGPT to see if the assertion about mineral water makes sense , if we do the complete spa treatment for IG inflicted pens with ascorbic acid.

Now as our resident chemist is on vacation and Gemini and other AI bots are making cute cat gifs or deep fake videos, I can't have it peer reviewed. 😴

 

If a pen has been properly cleaned using filtered water and a reducing agent such as ascorbic acid (e.g., in an ultrasonic cleaner), followed by multiple flushes and soak cycles, then residual reactive material is effectively eliminated.

Ascorbic acid reduces any oxidized iron(III) residues and breaks down iron-tannin complexes that may otherwise precipitate or crust in the feed. Subsequent flushing removes both solubilized iron ions and remaining acid.

Under these conditions:

There is no significant iron(II) sulfate or tannic acid left in the feed

The pH environment is effectively neutralized

There is no risk of precipitation upon contact with either distilled water or fresh ink

Full drying before re-inking is not chemically necessary, since no reactive agents remain

The suggestion to dry fully is only relevant if the pen has not undergone full chemical cleaning. In the case described, precipitation due to water residue is unlikely.

 

Hope it helps @Lithium466 & @LizEF.

 

[LizEF]

55 minutes ago, yazeh said:

As chemistry was my favorite subject at school and I am very busy at my ink reviewing lab,  I asked ChatGPT to see if the assertion about mineral water makes sense , if we do the complete spa treatment for IG inflicted pens with ascorbic acid.

Now as our resident chemist is on vacation and Gemini and other AI bots are making cute cat gifs or deep fake videos, I can't have it peer reviewed. 😴

👏

 

56 minutes ago, yazeh said:

If a pen has been properly cleaned using filtered water and a reducing agent such as ascorbic acid (e.g., in an ultrasonic cleaner), followed by multiple flushes and soak cycles, then residual reactive material is effectively eliminated.

Ascorbic acid reduces any oxidized iron(III) residues and breaks down iron-tannin complexes that may otherwise precipitate or crust in the feed. Subsequent flushing removes both solubilized iron ions and remaining acid.

Under these conditions:

There is no significant iron(II) sulfate or tannic acid left in the feed

The pH environment is effectively neutralized

There is no risk of precipitation upon contact with either distilled water or fresh ink

Full drying before re-inking is not chemically necessary, since no reactive agents remain

The suggestion to dry fully is only relevant if the pen has not undergone full chemical cleaning. In the case described, precipitation due to water residue is unlikely.

 

Hope it helps @Lithium466 & @LizEF.

Thanks, @yazeh.  I'm not sure that answers the question about tap water, but then, "tap water" is not a standardized substance, so it's probably not possible to answer in the general - it will depend on how hard the water is.  But to me, the idea expressed above is that by the time of your final rinse, there's really nothing left to react to...  So the only question is whether your evaporated water has left behind stuff that the next IG ink will react with...

[Lithium466]

5 hours ago, yazeh said:

As chemistry was my favorite subject at school and I am very busy at my ink reviewing lab,  I asked ChatGPT to see if the assertion about mineral water makes sense , if we do the complete spa treatment for IG inflicted pens with ascorbic acid.

Now as our resident chemist is on vacation and Gemini and other AI bots are making cute cat gifs or deep fake videos, I can't have it peer reviewed. 😴

 

If a pen has been properly cleaned using filtered water and a reducing agent such as ascorbic acid (e.g., in an ultrasonic cleaner), followed by multiple flushes and soak cycles, then residual reactive material is effectively eliminated.

Ascorbic acid reduces any oxidized iron(III) residues and breaks down iron-tannin complexes that may otherwise precipitate or crust in the feed. Subsequent flushing removes both solubilized iron ions and remaining acid.

Under these conditions:

There is no significant iron(II) sulfate or tannic acid left in the feed

The pH environment is effectively neutralized

There is no risk of precipitation upon contact with either distilled water or fresh ink

Full drying before re-inking is not chemically necessary, since no reactive agents remain

The suggestion to dry fully is only relevant if the pen has not undergone full chemical cleaning. In the case described, precipitation due to water residue is unlikely.

 

Hope it helps @Lithium466 & @LizEF.

 

 

 

4 hours ago, LizEF said:

👏

 

Thanks, @yazeh.  I'm not sure that answers the question about tap water, but then, "tap water" is not a standardized substance, so it's probably not possible to answer in the general - it will depend on how hard the water is.  But to me, the idea expressed above is that by the time of your final rinse, there's really nothing left to react to...  So the only question is whether your evaporated water has left behind stuff that the next IG ink will react with...

 

Thank you @yazeh!

I still think AI is not fully correct, in a perfectly balanced solution (like I'm hoping the Tintenlabor inks, things would certainly be different with ESSRI for ex), even dilution by leftover distilled water can ruin the solubility of some ingredients and cause precipitation. 
Now would these potential precipitations really impede flow, at least temporarily? I have to start rinsing my pens with distilled water now 😱

My only "modern" IG ink is KWZ Gummiberry IG and yes it generally has a harder time flowing at first (especially since I'm refilling cartridges), and then the flow improves...but is that just due to surface tension, minerals in the feed, just the feed taking a while cooperating, something else?

[InesF]

Thank you, @LizEF, for reviewing also "the other" Tintenlabor Green IG ink and for the story part. 

Still on the way to catching up, please allow me to make it short: I like how the colour develops due to oxidation but I dislike how pale it seems to be in fresh lines.

 

Maybe it is possible to get the ink in already oxidised condition? But wait 🤔, no, there's something wrong with my thoughts ...  

[LizEF]

7 hours ago, InesF said:

Thank you, @LizEF, for reviewing also "the other" Tintenlabor Green IG ink and for the story part. 

You're very welcome!

 

7 hours ago, InesF said:

Still on the way to catching up, please allow me to make it short:

Of course!

 

7 hours ago, InesF said:

I like how the colour develops due to oxidation but I dislike how pale it seems to be in fresh lines.

Yeah, it wasn't my favorite, and really, most of these inks need a wider nib and maybe a little wetter pen.

 

7 hours ago, InesF said:

Maybe it is possible to get the ink in already oxidised condition? But wait 🤔, no, there's something wrong with my thoughts ...