Houston, we have a problem...BE nic titration results

[Kurt]

I kept adding acid until the blue turn pale yellow and there was no sign of blue or green yes.

Edit: I had the instructions right in front of me as I did the test so I wouldn't screw up.

If one color of an indicator is blue and the other extreme is yellow, you add until it is green (equal amounts of acid and base form of the indicator). that makes this particular indicator somewhat tricky to use. All yellow is too far, and you have added too much acid. Maybe not a LOT too much, but you are past the end point.

The grad cylinder is superfluous, it is only to measure the volume. It is certainly not the glassware used for a normal titration. You WANT more volume (adding water) and to be able to physically swirl. That is why we use an erlenmeyer flask, and why it has the wide-bottom shape, to swirl. Designed for titrations. A tall glass will be ok to, as long as there is no splashing out.

Just trying to teach a little technique here. The person producing the kits has already contacted me about making improvements that people can do.

 

[cozzicon]

This just in:


From: Brad Bacher <customerservice@boxelderchemicalsupply.com>
Date: 20 November 2011 04:11:45 GMT
To: XXX@XXX.XXX
Subject: Subject: Box Elder Product Recall

Hello Everyone,

Due to recent indications by the public of high Box Elder nicotine strengths, we are issuing a product recall for any bottle of unflavored e-liquid that have been purchased between May and August 2011. We are investigating this problem to the fullest extent possible and we regret to inform you that we will not be selling nicotine products on Box Elder Chemical Supply until we can fully verify the nature and source of this problem. We are very sorry for any inconvenience this may cause you however, we are convinced that for our customers, company and industry, that a recall is the safest course of action due to the nature of this product.

We humbly request that if you have purchased a bottle of unflavored e-liquid from us between May and August 2011, that you place the bottle in a zip-lock plastic bag and mail it back to us.

We do ask that before you ship a product back to us that you contact us at customerservice@boxelderchemicalsupply.com or call 888-962-5877.

Please have the date of purchase or the order ID number and we will be more than willing to issue a Return Merchandise Authorization Number.

We also ask that if you return a product to us that you do so via the US Postal Service and that you send the product via Flat Rate Priority Mail to the following address:

Brad Bacher

1170 Sycamore Dr.

Brigham City, Utah

84302

Any refunds will be issued within 24 hours of the date of an arrival of product back to our facility and will include the cost of return

shipping if Flat Rate Priority Mail is used. We apologize for this problem and thank you for your attention on this matter.

Sincerely,


Brad Bacher

Box Elder Chemical Supply

 

[Paradisevap]

New email ( just the first section)

 

[tmcase]

Latest BE mass email:

Edit: Never mind. Somebody beat me to it.

 

[Kurt]

BE has just issued a recall of all liquids between May and August 2011, and is shutting down operations until this can be solved. I applaud Brad for this decision. I'm sure it was not an easy one, but it was the right thing to do.

 

[Kurt]

Deleted, already posted.

 

[cozzicon]

I suppose great minds huh?

 

[tmcase]

If one color of an indicator is blue and the other extreme is yellow, you add until it is green (equal amounts of acid and base form of the indicator). that makes this particular indicator somewhat tricky to use. All yellow is too far, and you have added too much acid. Maybe not a LOT too much, but you are past the end point.

The grad cylinder is superfluous, it is only to measure the volume. It is certainly not the glassware used for a normal titration. You WANT more volume (adding water) and to be able to physically swirl. That is why we use an erlenmeyer flask, and why it has the wide-bottom shape, to swirl. Designed for titrations. A tall glass will be ok to, as long as there is no splashing out.

Just trying to teach a little technique here. The person producing the kits has already contacted me about making improvements that people can do.

The instructions for this kit said nothing about the solution turning green. I'll try it again adding water this time and watching for green but if it did turn green I didn't notice it. It seemed to have gone from bright blue to light blue to pale yellow.

 

[AzPlumber]

Happy to see Brad has stepped up to the plate and issued a recall.

 

[Katya]

Happy to see Brad has stepped up to the plate and issued a recall.

Me too. This is good news indeed.

 

[GrimmGreen]

I apologize, I have not read this whole thread.

Is there a list of vendors that were using said nicotine? I would like to help get the word out about the recall

 

[Kurt]

I apologize, I have not read this whole thread.

Is there a list of vendors that were using said nicotine? I would like to help get the word out about the recall

Gourmet vapor and Honeyville for sure. He said there were a lot of others in my interview with him on Cozzicon's show, if I recall correctly. Cozzicon might know more.

 

[AzPlumber]

OK after a few moments of thought, I wonder why the recall is limited to that time frame? If he has tracked down the problem to this time frame, why is he suspending sales now?

 

[Kurt]

The instructions for this kit said nothing about the solution turning green. I'll try it again adding water this time and watching for green but if it did turn green I didn't notice it. It seemed to have gone from bright blue to light blue to pale yellow.

If I have this indicator, I am going to see how it looks on Monday. It is not as common one as others. I am going by general indicator rules.

 

[GMoney]

Happy to see Brad has stepped up to the plate and issued a recall.

Agreed. I applaud him for doing it - even if he was dragged "kicking and screaming" to the inevitable and only course of action.

 

[Paradisevap]

The instructions for this kit said nothing about the solution turning green. I'll try it again adding water this time and watching for green but if it did turn green I didn't notice it. It seemed to have gone from bright blue to light blue to pale yellow.

If you go real slow it turns green before yellow

Kurt a step by step of your method would be great I can see how it would be better as is its close between green and yellow

 

[Kurt]

OK after a few moments of thought, I wonder why the recall is limited to that time frame? If he has tracked down the problem to this time frame, why is he suspending sales now?

Maybe because that is the timeframe of the DOPs of the ones I tested. I do think there were questions before that, but these are the samples that were sent to me. I have not received samples from earlier or later as yet.

 

[kinabaloo]

If one color of an indicator is blue and the other extreme is yellow, you add until it is green (equal amounts of acid and base form of the indicator). that makes this particular indicator somewhat tricky to use. All yellow is too far, and you have added too much acid. Maybe not a LOT too much, but you are past the end point.

The grad cylinder is superfluous, it is only to measure the volume. It is certainly not the glassware used for a normal titration. You WANT more volume (adding water) and to be able to physically swirl. That is why we use an erlenmeyer flask, and why it has the wide-bottom shape, to swirl. Designed for titrations. A tall glass will be ok to, as long as there is no splashing out.

Just trying to teach a little technique here. The person producing the kits has already contacted me about making improvements that people can do.

I was just quoting from the instructions :

"When adding the acid and mixing, the color will go from blue to bluish-green to green, to yellowish-green, to yellow with still a tint of green, and when you've reached the 'magic drop', it will turn all yellow."

So it is the middle color we are looking for - just to be quite clear ? Normally in titraton it is.

Is this the same person/kit that I put in my signature?

 

[Kurt]

If you go real slow it turns green before yellow

Kurt a step by step of your method would be great I can see how it would be better as is its close between green and yellow

What I am thinking is this:

You need:

2 syringes
BB
nic liquid
H2SO4
Distilled water
A tall glass that you can swirl about 40 mL of liquid without splashing

Use syringe to deliver 1 mL on nic liquid to the glass. Add about 20 mL of water. Swirl until completely mixed. Add 2-4 drops of BB, swirl again.

Use other syringe to little by little add H2SO4 to the glass, all the while swirling with the other hand (ideally...certainly swirl until fully mixed after each addition).

When the color starts to JUST turn yellow, you are done. Volume in the formula should be 1 mL + volume of acid added from the syringe graduations.

Kurt's Kitchen Titration.

 

[kinabaloo]

What I am thinking is this:

You need:

2 syringes
BB
nic liquid
H2SO4
Distilled water
A tall glass that you can swirl about 40 mL of liquid without splashing

Use syringe to deliver 1 mL on nic liquid to the glass. Add about 20 mL of water. Swirl until completely mixed. Add 2-4 drops of BB, swirl again.

Use other syringe to little by little add H2SO4 to the glass, all the while swirling with the other hand (ideally...certainly swirl until fully mixed after each addition).

When the color starts to JUST turn green, you are done. Volume in the formula should be 1 mL + volume of acid added from the syringe graduations.

Kurt's Kitchen Titration.

0.12N strength H2SO4 (the acid - dilute sulphuric acid)

BB is Bromothymol Blue (the pH indicator / color)

A tall shot glass might be suitable.