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Search took 0.09 seconds. Search: Posts Made By: kbd

Forum: The Reef Chemistry Forum

04/02/2006, 04:21 PM

Replies: 4

Rowaphos Renewal....

Views: 232

Posted By kbd

Some people use the exhausted stuff to make...

Some people use the exhausted stuff to make housebricks.....

:)

kim

(ps, I am serious....)

Forum: The Reef Chemistry Forum

03/30/2006, 01:00 PM

Replies: 9

Phosban and ALK

Views: 370

Posted By kbd

Yes, it's a bit of a spaghetti ! One of the...

Yes, it's a bit of a spaghetti !

One of the outlets over here is doing specific tests on the adsorption and other chemical properties of a variety of brands of phosphate remover, using laboratory...

Forum: The Reef Chemistry Forum

03/30/2006, 04:00 AM

Replies: 9

Phosban and ALK

Views: 370

Posted By kbd

Randy, Results as you expected (and I did...

Randy,

Results as you expected (and I did not). :rolleyes:

Initial pH reading (RO water) was 6.3.

On adding the GFO, there was a sharp but temporary fall to 5.9 (of course the water is...

Forum: The Reef Chemistry Forum

03/29/2006, 07:58 AM

Replies: 9

Phosban and ALK

Views: 370

Posted By kbd

Randy, I'll try that later, tho' I'm not...

Randy,

I'll try that later, tho' I'm not sure about testing the pH of unbuffered water with my probe. I might also try adding some carbonate to the water, allowing the pH to stabilise, then...

Forum: The Reef Chemistry Forum

03/28/2006, 06:16 PM

Replies: 9

Phosban and ALK

Views: 370

Posted By kbd

I believe that part of the way the surface of the...

I believe that part of the way the surface of the adsorbent "preps" itself when immersed is by releasing H ions, so that in itself could reduce alkalinity without also reducing the amount of...

Forum: The Reef Chemistry Forum

03/28/2006, 08:28 AM

Replies: 1

Sodium Bicarbonate - Carbonate

Views: 312

Posted By kbd

Sodium Bicarbonate - Carbonate

Randy,

I understand many people use a "balanced" mix of carbonate - bicarbonate when dosing alkalinity as a method of reducing any temporary pH blips. Either buy the two and mix, or heat some...

Forum: The Reef Chemistry Forum

07/07/2005, 03:38 PM

Replies: 30

chemistry question

Views: 520

Posted By kbd

I wasn't getting the idea. :) Rambling is...

I wasn't getting the idea. :)

Rambling is nice. Lot's of fresh air ! Don't apologise.

kim

Forum: The Reef Chemistry Forum

07/06/2005, 05:33 PM

Replies: 30

chemistry question

Views: 520

Posted By kbd

Boomer, Thanks for the explanation...but I...

Boomer,

Thanks for the explanation...but I think that's what I said, and I think I'll be sticking to it !

:)

kim

Forum: Tank of the Month

07/05/2005, 05:59 PM

Replies: 228

Tank of the Month - July 2005

Views: 26,462

Posted By kbd

Tuan, Many congratulations, and so well...

Tuan,

Many congratulations, and so well deserved.

:)

Did you ever worry about using copper piping ?

kim

Forum: The Reef Chemistry Forum

07/05/2005, 05:12 PM

Replies: 30

chemistry question

Views: 520

Posted By kbd

Interesting, What thackray said is what I...

Interesting,

What thackray said is what I suggested a few weeks ago on another board. Similarly, dissolving CO2 in water may increase buffer (HCO3) but adds protons in equal numbers, so no net...

Forum: The Reef Chemistry Forum

07/05/2005, 03:15 PM

Replies: 5

Copper Test

Views: 164

Posted By kbd

Many thanks to you both. The Orbeco-Hellige...

Many thanks to you both.

The Orbeco-Hellige CU ++ test kit sounds good, especially if they do an executive model. You know, nice leatherette pouch, a member's badge and that sort of stuff.
...

Forum: The Reef Chemistry Forum

07/04/2005, 03:40 PM

Replies: 5

Copper Test

Views: 164

Posted By kbd

Copper Test

Randy,

I hope that the Sun shines !

Would you be able to recommend a test for Cu which (i) works in saltwater and (ii) is accurate to the levels that a reefer would need ? Without fail, but no...

Forum: The Reef Chemistry Forum

06/29/2005, 05:21 PM

Replies: 21

The units of Reefkeeping: help needed

Views: 404

Posted By kbd

Wow, that's a project ! Hopefully you have...

Wow, that's a project !

Hopefully you have a Kaye & Laby (or the US equivalent) to hand.

Recommend that you start with real units (eg metric etc.) then convert to inches and gallons once that...

Forum: The Reef Chemistry Forum

02/01/2005, 12:09 PM

Replies: 8

Organic phosphate removal experiment

Views: 372

Posted By kbd

On the pH point, my understanding is that in NSW...

On the pH point, my understanding is that in NSW phosphates will bind best to aragonite at a pH around 8.4. Any higher or lower and the capacity is reduced.

Also the binding is by no means...

Forum: The Reef Chemistry Forum

01/27/2005, 04:15 PM

Replies: 217

ca monitor

Views: 10,409

Posted By kbd

Randy, Would it also be possible to repeat...

Randy,

Would it also be possible to repeat the basic tests, say, one week and two weeks following calibration ? Eg full strength and half strength IO ?

Hopefully you wouldn't need to redo the...

Forum: The Reef Chemistry Forum

07/13/2004, 08:51 AM

Replies: 3

Conductivity of Stored RO

Views: 213

Posted By kbd

Many thanks. Enjoy ! kim

Many thanks.

Enjoy !

kim

Forum: The Reef Chemistry Forum

07/12/2004, 05:33 PM

Replies: 3

Conductivity of Stored RO

Views: 213

Posted By kbd

Conductivity of Stored RO

First, I hope that the pool is at optimal temperature and salinity.

Ditto the margarita. :D

A small question. I just have a niggly thing in my head.

I see on many boards that people...

Forum: The Reef Chemistry Forum

06/08/2004, 06:07 PM

Replies: 38

Using test kits for ammonia and nitrate

Views: 692

Posted By kbd

Related issue (tho' not a kid) ... (a) In...

Related issue (tho' not a kid) ...

(a) In the presence of nitrite (or ammonium), is a nitrate reading reliable ? Eg on the Salifert brand ? Are there possible problems with others (obviously I...

Forum: The Reef Chemistry Forum

06/02/2004, 04:56 PM

Replies: 15

What exactly is dKh?

Views: 320

Posted By kbd

Then, I guess, there are a couple of meanings...

Then, I guess, there are a couple of meanings which could reasonably be understood by the word "alkalinity" ?

I must confess, when I first started out on this hobby, I found it very confusing...

Forum: Reef Discussion

05/31/2004, 09:56 AM

Replies: 22

Anyone with Phosphate Issues?

Views: 1,471

Posted By kbd

Rowaphos is just granular ferric hydroxide ie "a...

Rowaphos is just granular ferric hydroxide ie "a form FeOOH" (a poorly crystallised version, almost amorphous).

FeOOH is precipitated by adding sodium hydroxide to ferric chloride solution. I...

Forum: Reef Discussion

05/28/2004, 06:16 PM

Replies: 22

Anyone with Phosphate Issues?

Views: 1,471

Posted By kbd

I am surprised at this thread. I have yet to use...

I am surprised at this thread. I have yet to use Rowaphos (still setting up) but on the UK boards that I inhabit, the use of old canister filters, or tailor-made reactors, has solved the caking...

Forum: The Reef Chemistry Forum

05/24/2004, 06:13 PM

Replies: 11

Basic Ingredient in Iron Based Phosphate Removers?

Views: 279

Posted By kbd

Fwiw, according to the manufacturer the material...

Fwiw, according to the manufacturer the material on which Rowaphos is based is 52 - 57 % granular ferric oxide a- FeOOH plus some Fe(OH)3. The rest is water. I suspect that the materials are...

Forum: The Reef Chemistry Forum

05/13/2004, 05:04 PM

Replies: 25

Conductivity in MOhms (mega ohms?)

Views: 1,462

Posted By kbd

Crumbs....I almost confused myself then ! ...

Crumbs....I almost confused myself then ! Resistivity = 1 / conductivity (and yes, vice versa). Eees a miracle...

But you cannot equate conductance (resistance) with conductivity (resistivity). ...

Forum: The Reef Chemistry Forum

05/13/2004, 05:04 PM

Replies: 25

Conductivity in MOhms (mega ohms?)

Views: 1,462

Posted By kbd