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So I was washing a yellow curry stain off my blue shirt, and when I used soap I thought I was getting somewhere as it turned purplish-red and then back to yellow as I rinsed it. But after repeating this a couple of times, I realized that the stain wasn't getting any smaller--in fact, that I probably have an acid-base indicator on my hands! Or rather, on my shirt. I don't know, I haven't researched curry powder or whatever else is in it as an indicator, but unfortunately, I think all the compounds I have on hand are basic, and (despite knowing that
edjoesu and possibly other HRSFen would probably encourage me to) I don't want to try tea or calligraphy ink, for example, because I like this shirt (it's the one in my facebook picture) and would rather hope that the stain will eventually come off. But the tap water here is probably slightly acidic anyway, and who knows where the indicator changes. What is it, anyway, red cabbage juice? I suppose that would make sense, the yellow color coming from the rest of the stain. Someone who has freer Internet than I do want to tell me?
Also, for the 4th, rather than wear red, white and blue like an American would, I'll just wear my purple HRSFA shirt (sigh, have to wash that, have been using at part of pajamas, kind of like a security blanket). Anyone have creative further suggestions? Oh, and I'm keeping a collection of notably strange English sayings on shirts, though I only started it today so can't remember enough, and it's hard to see the entirety of writing sometimes. At least one, though, would probably make
lowellboyslash and
grapefruitism and others guffaw--I'm not sure who else who reads this has dirty humor and guffaws, because I don't think
lain246 reads this. But I won't put it up until I leave, because otherwise it'd be updated and people would have to go back and check.
No, really, suggestions on what to do on July 4th in Beijing? (Keep in mind that I have class, and will check this in my morning and possibly afternoon, so comment quickly if you do. :) )
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Also, for the 4th, rather than wear red, white and blue like an American would, I'll just wear my purple HRSFA shirt (sigh, have to wash that, have been using at part of pajamas, kind of like a security blanket). Anyone have creative further suggestions? Oh, and I'm keeping a collection of notably strange English sayings on shirts, though I only started it today so can't remember enough, and it's hard to see the entirety of writing sometimes. At least one, though, would probably make
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No, really, suggestions on what to do on July 4th in Beijing? (Keep in mind that I have class, and will check this in my morning and possibly afternoon, so comment quickly if you do. :) )
(no subject)
Date: 2006-07-03 03:26 pm (UTC)(no subject)
Date: 2006-07-03 11:42 pm (UTC)(no subject)
Date: 2006-07-08 12:17 am (UTC)(no subject)
Date: 2006-07-10 02:52 pm (UTC)(no subject)
Date: 2006-07-04 06:17 am (UTC)(no subject)
Date: 2006-07-04 01:22 pm (UTC)When do you start school again? After August 19? Also, you've been lazy about posting--how are you?
(no subject)
Date: 2006-07-04 07:18 pm (UTC)* Beets
* Blueberries
* Carrots
* Cherries
* CURRY POWDER
* Delphinium Petals
* Geranium Petals
* Grapes
* Horse Chestnut Leaves
* Hydrangea
* Morning Glories
* Onion
* Pansy Petals
* Petunia Petals
* Poison Primrose
* Poppy Petals
* Purple Peonies
* Red cabbage
* Red Radish
* Rhubarb
* Rose Petals
* Strawberries
* Tea
* Thyme
* TURMERIC
* Tulip Petals
* Violet Petals
Turmeric is a spice that is made from ground turmeric tuber and can be found alone or as an ingredient in curry powder. Turmeric is yellow in acidic solutions and pink in basic solutions. Turmeric is also used as an indicator for borax. Acidified borax solutions turn turmeric pink and basic borax solutions turn it blue.
Curcumin, or turmeric yellow, is a natural dye found in curry powder. It turns from yellow at pH 7.4 to red at pH 8.6.
Recipe: Turmeric indicator. Stir 1/4 teaspoon turmeric or curry powder in 1/4 cup of rubbing alcohol. You will get a yellow-orange suspension. Let the solid settle and mix one part of the supernatant with two parts of water. This indicator will be yellow in the presence of acid and red in the presence of base. Like all natural indicators, this one works best if it is freshly made.
(no subject)
Date: 2006-07-05 04:55 am (UTC)(no subject)
Date: 2006-07-05 12:09 pm (UTC)Foods containing potassium, calcium, magnesium, sodium, zinc, silver, copper, and iron are most often basic; foods containing sulphur, phosphorus, chlorine, and iodine are most often acidic.