DIY Alkatronic reagent

[Mkkari]

If you pair one up with a cal reactor, the Alkatronic is hard to beat.

If you fine-tune tune (with Baseline Calibration function) to the Hanna checker then make sure you test with fresh reagents, because Hanna's reagents have a short lifespan once a new bottle is opened. Older opened Hanna reagents will come in on the high side.

Salifert and the "New" Red Sea Pro alk are pretty hard to beat, with their reagents lasting a lot longer.

I will be using it with my calcium reactor. I have Hanna ALK right now, and love them.

 

[ineption]

Thanks for your help Dwest and Randy

One more question if you don't mind

Does that mean that once I dilute 1N Sulphuric Acid to 0.1N by mixing 100ml of 1N to 900ml of Rodi.
Then with my freshly mixed 1L 0.1N I need to dilute that further with 4L of Rodi to get to base solution for Alkatronic making in total 5L of Reagent (1L Sulphuric Acid +4L rodi =5L of ready to use reagent for Alkatronic) is that correct?

 

[Dennis Cartier]

Thanks for your help Dwest and Randy

One more question if you don't mind

Does that mean that once I dilute 1N Sulphuric Acid to 0.1N by mixing 100ml of 1N to 900ml of Rodi.
Then with my freshly mixed 1L 0.1N I need to dilute that further with 4L of Rodi to get to base solution for Alkatronic making in total 5L of Reagent (1L Sulphuric Acid +4L rodi =5L of ready to use reagent for Alkatronic) is that correct?

Yes, that is correct.

Dennis

 

[ineption]

gents i managed to get hold of 4N of sulphuric acid to get 1L of 0.1N how much of 4Nto rodi do i need?

 

[Dennis Cartier]

gents i managed to get hold of 4N of sulphuric acid to get 1L of 0.1N how much of 4Nto rodi do i need?

You would need 25ml of acid and 975ml of rodi.

Dennis

 

[mcgaws]

Do people that that 0.1N sulphuric acid return it back into the system? Like I do with the actual alkatronic reagent? Thanks

 

[dwest]

Do people that that 0.1N sulphuric acid return it back into the system? Like I do with the actual alkatronic reagent? Thanks

I believe many do. I return my reagent that I make myself from 1M HCl.

 

[mcgaws]

I believe many do. I return my reagent that I make myself from 1M HCl.

What’s that 1m hcl?

 

[Herby’s reef]

Do people that that 0.1N sulphuric acid return it back into the system? Like I do with the actual alkatronic reagent? Thanks

I do, and I have had 0 issues with it. It works exactly like the alkatronic reagent

 

[mcgaws]

I do, and I have had 0 issues with it. It works exactly like the alkatronic reagent

Fantastic thanks. Ordered 5 litres of it yesterday

 

[dwest]

What’s that 1m hcl?

I dilute a 1 molar hydrochloric acid solution to the 0.02 molar solution required for the titration.

 

[AlbertGF]

I agree about the sulfuric acid getting more concentrated with water evaporating. I have experienced that with stains on clothes. It doesnt matter how diluted the acid is it will make holes in the clothes when the water from the acid dries.
But if You wash the clothes immediately it may go well.
My experience of HCl is different. I think I will make a test to see.
The experience of HCl and a pet bottle is from 2005 before I opened my shop.
I went out of Salifert kh reagent and with 2 x 120 miles to drive to buy new I decided to make my own.
I used a 1,5 litre PET bottle (ex carbonated mineral water) with RO water and calculated amount of HCl. I got the same results as with the ending Salifert test and was satisfied. I bought a new Salifert test and forgot the bottle in a shelf.
After half a year I saw the bottle again and tested it. The acid was now much weaker so I emptied the bottle.

I have been reading all thread and I think I understand it. But reading your post 2 questions came to me....

How can I make the salifert reagent using HCl? What is its concentration? Is it 0.1N HCl diluted at 1:4 (the same as alkatronic)?

Can I use Salifert test to see if my diy alkatronic reagent is Ok? Are salifert and alkatronic reagents interchangeables? Because if I use my diy alkatronic reagent with salifert test I don't get the same results...

Thank you!

 

[Sisterlimonpot]

I haven't used Salifert in a long time, forgive me if my memory of it is wrong.

Are you referring to the final reagent that you put in the 1ml syringe to get the proper color change?

 

[AlbertGF]

I haven't used Salifert in a long time, forgive me if my memory of it is wrong.

Are you referring to the final reagent that you put in the 1ml syringe to get the proper color change?

Yes, I thought you made it by yourself with HCl. I was curious about how did you do it and if you knew if it was the same as alkatronic reagent or not.

 

[JimWelsh]

I have been reading all thread and I think I understand it. But reading your post 2 questions came to me....

How can I make the salifert reagent using HCl? What is its concentration? Is it 0.1N HCl diluted at 1:4 (the same as alkatronic)?

Can I use Salifert test to see if my diy alkatronic reagent is Ok? Are salifert and alkatronic reagents interchangeables? Because if I use my diy alkatronic reagent with salifert test I don't get the same results...

Thank you!

It is very easy to do the math on the Salifert alk reagent, based on the instructions. Salifert uses 4 mL of sample, and if it takes the whole 1.0 mL syringe of reagent to reach the endpoint, then the sample has 16 dKH or 5.71 meq/L of alkalinity. Therefore, the concentration of the reagent must be 4 * 5.71 = 22.86 uM/mL = 0.02286 M. So, no, they are not interchangeable.

 

[AlbertGF]

It is very easy to do the math on the Salifert alk reagent, based on the instructions. Salifert uses 4 mL of sample, and if it takes the whole 1.0 mL syringe of reagent to reach the endpoint, then the sample has 16 dKH or 5.71 meq/L of alkalinity. Therefore, the concentration of the reagent must be 4 * 5.71 = 22.86 uM/mL = 0.02286 M. So, no, they are not interchangeable.

Wow, easy, easy... I'll have to read it many times carefully. But yes, you solved my doubt. Thank you!!!

 

[Sisterlimonpot]

About as straight forward as it gets.

 

[mcgaws]

Hi everyone, so I just mixed up the 0.1N (800ml of acid to 3200ml of ro). Just tested the mix and it seems to reading 1dkh higher. I measured everything out with volumetric class a cylinders. Has anyone else had this issue?

 

[richiero]

This is a brand new shot of my Amazon jug

Seems to read the same...

Hello have you been using this ? and have you been returning the waste back to you tank? If so do you have a link for that product? Thank You forget it i found out my answer. lol

 

[ReeferBud]

Hello have you been using this ? and have you been returning the waste back to you tank? If so do you have a link for that product? Thank You forget it i found out my answer. lol

That is exactly what I use. Works perfectly.