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Chemistry (Page 2)
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ProwlerOnline, Plymouth/Chrysler Prowler Discussion Forum
Off Topic
Chemistry (Page 2)
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| This topic is 2 pages long: 1 2 This topic was originally posted in this forum: Tires, Rims Discusssion |
| Author | Topic: Chemistry |
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ed monahan Prowler Junkie Posts: 33595 |
posted 02-18-2004 02:21 AM
For a Hot tub, spa. Which is better chlorine or bromine? Why? I don't have a clue and Bob Rodenfels says he uses chlorine because that is what the manufacturer recommended 10 years ago. I use Bromine. If chlorine is better, I will switch. Thanks for any help. |
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JKrehel Prowler Junkie Posts: 688 |
posted 02-18-2004 03:53 AM
We use Bromine in our pool and spa, less odor and easier on you skin. JMO |
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Dave Mills Prowler Junkie Posts: 5419 |
posted 02-18-2004 05:39 AM
We use Bromine, Ed. |
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ed monahan Prowler Junkie Posts: 33595 |
posted 02-18-2004 05:54 AM
Sandy's theory was that pools use chlorine since they have to use so much and chlorine was probably cheaper. Thanks for the replies. Anyone have any SCIENTIFIC reasons? |
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Terry Prowler Junkie Posts: 489 |
posted 02-18-2004 06:44 AM
As I best recall, having done some research some 15 years ago for an EPRI presentation on our Chlorine Reduction Program for our power plant, the HOCl (hypochlorous acid) and HOBr (hypobromous acid)) are the disinfectants of those halogens. It seems that HOBr works more effectively over a greater pH range than HOCl. note: when sodium hypochlorite is added to water hypochlorous acid and caustic soda are formed (NaOCl + H2O yields HOCl + NaOH) The HOCL is the actual disinfectant not the NaOCl. When our power plant did the program we were able to use less chlorine when we added sodium bromide. (HOCl + NaBr yields HOBr + NaCl) Our total biocides were (HOCl and HOBr), which we were able to use less than HOCl only. Also, it seems that the bromines decays quicker than chlorines and thus have less adverse impact on the environment. Terry |
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ALLEY CAT Prowler Junkie Posts: 36093 |
posted 02-18-2004 06:57 AM
Ed, at first I used Bromine but it was expensive and didn't last as long. Finally went to Chlorine tabs which seemed to do just as well for less. JMO |
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tangled up in BLUE Prowler Junkie Posts: 11086 |
posted 02-18-2004 07:06 AM
Michael Jackson used chlorine...and look what happened to him.....he faded out.... |
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PROWLER-KEITH Prowler Junkie Posts: 1243 |
posted 02-18-2004 07:39 AM
We use Chlorine in our Hot Tub lasts longer. PK |
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ALLEY CAT Prowler Junkie Posts: 36093 |
posted 02-18-2004 07:43 AM
quote: Janet must use it also,,,,,,on the boob tube it looked rather whitish. Prowler Keith - will not matter to you,,,,,,,,,,you never see the sun where you live, lol. |
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YellowFever unregistered Posts: 36093 |
posted 02-18-2004 08:26 AM
Bromine is primarily used in spas but can be used in swimming pools also. The increased cost of operating a pool on bromine makes chlorine a more efficient decision. Some folks recommends the use of Dichlor Granular Chlorine for use in pools and spas. Unlike bromine, dichlor is more pH stable and less expensive to use. Bromine tends to cause a brown staining on the spa surfaces and fittings and is difficult to remove. Bromine is a more complicated system than chlorine and proper knowledge is essential for bromine to work properly. Bromine, like chlorine, is a chemical element of the halogen family and is a prominent pool or spa disinfecting agent. Bromine compounds used for pool or spa disinfection are manufactured in granular, liquid, and tablet form. Elemental bromine is a liquid, and is rarely used today to disinfect pools or spas. The advantages of bromine include a more stable level of disinfecting power at higher water temperatures, and less objectionable smell. However, the cost of bromine can be double or triple that of chlorine. Bromine consumption can be cut down by building up a residual bank of 8 ppm of hypobromous acid. This can be done by starting the system with liquid or powder sodium bromine. Be aware that bromine dissolves much faster above a temperature of 90º F. This can be a source of trouble in spas at 104º F. Be sure to use only a spa bromine feeder to avoid overbromination. |
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