Official DNA 40 introduction

[want to quit]

Ni200 changes resistance as it gets hotter so not really comparable. Apples to oranges. From what I've read though, Ni200 gives a great vape. Some think better than Kanthal A1.

Taste is for sure more clear, clean, less muted with nickel that's for sure.

 

[HolmanGT]

Just remember that if you are thinking dual coils paralleling a 1 ohm coil with a second 1 ohm coil give you a total of 0.5 ohms.

And yes heavier wire hold more heat longer.

exactly. but good luck getting a 1 ohm coil with nickel. I'd probably aim for 2x .3 coils = .15 ohms

Well I sure didn't think that anyone would take my 1 ohm example in the literal sense. It was just meant to demonstrate that parallel coils with Ni200 28 gauge is going to be very difficult to pull off and still stay above Evolvs 0.1 ohm lower limit.

 

[Limpar]

We'd have to wait for a study to tell us what the safe levels for e-liquid and VG / PG is.

This is only speculation: I don't think setting it up to 500°F is too dangerous. The boiling point of 80%VG and 20% water is 250°F (121°C). For 90%VG 10% water it's 281°F (138°C). A mixture with 10% PG (e.g. flavor) could have a higher boiling point but somewhere around that. I do actually get the faintest wisps of vapor at 250°F, but we are already way above the boiling point simply to increase the amount of vapor production.

I'm not sure at what temperatures acrolein (the simplest aldehyde, whatever that means) will get created, but googling quickly I found this: "Over 530 F is the temp I've read on here that the ecig must reach in order for it to produce Acrolein.".

But depending on your wicking, any temp above 400°F will increase the "brownification" of your wick. So if you stay below 500°F you MIGHT be fine and just have to rewick more often.

I read in a few places that Acrolein is created when VG is heated up to 280C (563F).

 

[HolmanGT]

What iron atoms? It's pure nickel.

This iron:

Link => Nickel 200 Composition

Nominal Composition in Percent:

Ni 99.00

Fe 0.40

Si 0.35

Mn 0.35

C 0.150

Cu 0.25

S 0.010

 

[peraspera]

... which is pure enough that the other elements that remain do not have a material effect on its properties.

This was all I could find specifying what happens to Nickel 200 at temps over 600°F, Ulbrich Ni200 datasheet. No mention of what they define as "long-term exposures".

Nickel 200 is not recommended for service above 600°F (316°C) because long-time exposures in the 800°F to 1200°F range result in precipitation of a carbon containing phase and loss of ductility.

 

[Limpar]

I'd be all over one of these DNA40's if it didn't depend on Nickel wire, I'm just not comfortable with it. I'd probably switch out my devices to all TC units. Frustrating.

 

[HolmanGT]

I'd be all over one of these DNA40's if it didn't depend on Nickel wire, I'm just not comfortable with it. I'd probably switch out my devices to all TC units. Frustrating.

I am not trying to convince anyone that Nickel is safe but if you Google it you'll find it is used in the "Food Industry" extensively so how harmful can it be.

 

[Limpar]

I am not trying to convince anyone that Nickel is safe but if you Google it you'll find it is used in the "Food Industry" extensively so how harmful can it be.

I understand that, but it's not the same as inhaling it. It is also a known carcinogen, therefore it just makes me uneasy. I want to be clear that I'm not saying that it will cause cancer the way we want to use it. For all we know it could be completely safe or it may not, but as I said in my previous post I'd be all over this if it wasn't nickel.

 

[HolmanGT]

I understand that, but it's not the same as inhaling it. It is also a known carcinogen, therefore it just makes me uneasy. I want to be clear that I'm not saying that it will cause cancer the way we want to use it. For all we know it could be completely safe or it may not, but as I said in my previous post I'd be all over this if it wasn't nickel.

Understood - You should give Evolv a call I am sure they have some very good arguments for why the way we are using it is not a threat. There was some mention of problems with Nickel in and YouTube video with "Brandon" (the head Evolv guy) and PBusardo but they kind of glossed over it.

Here is the line to the video: https://www.youtube.com/watch?v=K8j_Za5RaTU

Also I here that Evolv is very good at answering questions even to the point of giving you a phone call.

 

[Heespharm]

I understand that, but it's not the same as inhaling it. It is also a known carcinogen, therefore it just makes me uneasy. I want to be clear that I'm not saying that it will cause cancer the way we want to use it. For all we know it could be completely safe or it may not, but as I said in my previous post I'd be all over this if it wasn't nickel.

Kanthal and the things that make up kanthal are also a known carcinogen at higher temps... So are the byproducts of ejuice at higher temps


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[HolmanGT]

Kanthal and the things that make up kanthal are also a known carcinogen at higher temps... So are the byproducts of ejuice at higher temps


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Good point Heespharm even if it is not as cheery as we would all like. "Life can be hazardous to your health" (unknown)

 

[Rossum]

This iron:
Link => Nickel 200 Composition
Nominal Composition in Percent:

Ni 99.00
Fe 0.40
Si 0.35
Mn 0.35
C 0.150
Cu 0.25
S 0.010

Which all adds up to 100.51%.

... because those are all maximums, and there's no minimum for any of them, which implies that none of them (at that percentage or less) have any material effect on the properties of the nickel.

 

[Limpar]

Understood - You should give Evolv a call I am sure they have some very good arguments for why the way we are using it is not a threat. There was some mention of problems with Nickel in and YouTube video with "Brandon" (the head Evolv guy) and PBusardo but they kind of glossed over it.

Here is the line to the video: https://www.youtube.com/watch?v=K8j_Za5RaTU

Also I here that Evolv is very good at answering questions even to the point of giving you a phone call.

Thanks for the link. I've watched that vid and you're right it is kinda glossed over. Maybe I could fire them an email. Don't think they're gonna want to call me as I'm in the UK

 

[Limpar]

Kanthal and the things that make up kanthal are also a known carcinogen at higher temps... So are the byproducts of ejuice at higher temps


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Yes I looked into a lot of that. For example Chromium VI, but that is at super high temperatures. I haven't really found enough info on nickel in order to allay my fears.

In regards to ejuice, you are right, and the temperatures we're talking about are much lower, which is why I think that the DNA40 is a huge step forward in terms of safety and as long as ejuice manufacturers play along, then that is one aspect of vaping where health concerns could be a thing of the past. I just wish it didn't use Kanthal.

Basically I'm torn because its temperature control has allayed many of my concerns but its reliance on nickel has introduced one.

 

[HolmanGT]

Thanks for the link. I've watched that vid and you're right it is kinda glossed over. Maybe I could fire them an email. Don't think they're gonna want to call me as I'm in the UK

Limpar,

You might be surprised I know that someone here was call and yes the UK is a little more cost but remember they are in the "Get it out to the public mode". So you never know also they might have a canned response for your question you can't be the first to have concerns about Nickel this thread is full of them. IMHO I don't think they would have picked a metal that was dangerous the way we use it. They just have so much time and money invested in this DNA-40 it wouldn't make sense to shoot your own foot off in front of the FDA. "Two cents"

By the way there is a another video with PB and they tour the Evolv factory. I don't have a link to it but it should be easy to find on YouTube.

I am an old man so I am not all that concerned about long term health problems with Nickel (fatalistic I guess) but if I was thirtyish I might be as concerned also.

 

[HolmanGT]

Which all adds up to 100.51%.

... because those are all maximums, and there's no minimum for any of them, which implies that none of them (at that percentage or less) have any material effect on the properties of the nickel.

You got me Rossum I don't have a clue I am just echo what I find on the subject. Did you read this post from a few entry's back: http://www.e-cigarette-forum.com/fo...cial-dna-40-introduction-29.html#post14465382

 

[Limpar]

Limpar,

You might be surprised I know that someone here was call and yes the UK is a little more cost but remember they are in the "Get it out to the public mode". So you never know also they might have a canned response for your question you can't be the first to have concerns about Nickel this thread is full of them. IMHO I don't think they would have picked a metal that was dangerous the way we use it. They just have so much time and money invested in this DNA-40 it wouldn't make sense to shoot your own foot off in front of the FDA. "Two cents"

By the way there is a another video with PB and they tour the Evolv factory. I don't have a link to it but it should be easy to find on YouTube.

I am an old man so I am not all that concerned about long term health problems with Nickel (fatalistic I guess) but if I was thirtyish I might be as concerned also.

Thanks Holman. Yes I've seen the other vid too. I agree in that I too don't think they would've selected a metal that is dangerous in the way we apply it, but they did select a metal which in some forms is proven to be carcinogenic, and for some people, that sets off alarm bells. That is my concern at this point and I hope they make public some of the findings from their research.

 

[HolmanGT]

Thanks Holman. Yes I've seen the other vid too. I agree in that I too don't think they would've selected a metal that is dangerous in the way we apply it, but they did select a metal which in some forms is proven to be carcinogenic, and for some people, that sets off alarm bells. That is my concern at this point and I hope they make public some of the findings from their research.

Limpar,

I am surprised that they haven't done that already. Someone in their public relations group is not doing their job that's for sure. They have to be well aware that a lot of people are asking questions about the use of nickel. Actually I find it hard to believe they are not reading the mail on this thread and getting concerned about conversations like this harming their sales.

If I owned Evolv...

 

[Heespharm]

Even if nickel turns outs harmful, u can turn it off, use kanthal and still have buck and boost and reverse battery protection with being able to use very low ohm ... What could be better


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[ukeman]

Taste is for sure more clear, clean, less muted with nickel that's for sure.

I thought it was the TP that made the "fresh coil" taste you know; like not cooking the juice and coil as much as K and non TP.