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DIY pH Paper DIY pH Paper
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Old 21-06-2006, 10:00 AM
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Default DIY pH Paper
Found this link. Pretty useful but need to calibrate the color scale with real pH paper for the first time.

http://www.funsci.com/fun3_en/acids/acids.htm#6

Click on the 'Red Cabbage Juice' at the Content table and read on......

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Old 21-06-2006, 10:42 AM
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quite interesting. do you think our pasars got sell red cabbage or not?long time din go to pasars.hehe.. found another way to make co2 also.

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Old 21-06-2006, 02:17 PM
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Do share out your way of DIY CO2 la....

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Old 21-06-2006, 06:19 PM
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Quote:
Originally Posted by justtalk
Do share out your way of DIY CO2 la....
From the article, when vinegar mix react with baking soda, co2 is released. now just need to find a way to steadily drip the soda water into the vinegar. any idea??

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Old 21-06-2006, 06:39 PM
RuslanJamil RuslanJamil is offline
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How about putting the baking soda in an automatic feeder above the vinegar? Don't know whether it is practical or not...

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Old 21-06-2006, 07:28 PM
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After reading that article... sorry off topic, but can vinegar be used to lower pH in the aquarium? Any adverse effects on fish?

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Old 22-06-2006, 09:19 AM
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i think can, as vinegar is weak acid. But dunno about the dosage though..

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