First, is it and effective? And second, can somebody please post the recipe?

Thanks

Kevin

A quart of basic hydrogen peroxide to 1 gal of water works.

TMG1:

I don't know about that until I see the recipe. Actually, @ $.99/pint at the dollar store, the H2O2 recipe sounds kind of expensive.

Let's see --- a lb. of sulfur or a pint of neem oil costs 8-11 bucks and I can get 16-20 gal of product. 2 bucks/gal your way. Like I said, I won't know how cost effective until I see the recipe.

By the way, Click on the link. That's where I read it.

Kevin

I prefer "idiot savant". It sounds more old timey.

Materials

3.0 g salicylic acid
6 mL acetic anhydride*
5-8 drops of 85% phosphoric acid or concentrated sulfuric acid*
distilled water (about 50 mL)
10 mL ethanol
1% iron III chloride (optional, to test purity)

*Use extreme caution when handling these chemicals. Phosphoric or sulfuric acid and acetic anhydride can cause severe burns.

Equipment

filter paper (12.5 cm)
ring stand with funnel
two 400 mL beakers
125 mL Erlenmeyer flask
50 mL buret or measuring pipet
10 mL and 50 mL graduated cylinder
fume hood, hot plate, balance
dropper
stirring rod
ice bath
wash bottle

Accurately weigh 3.00 grams of salicylic acid and transfer to a dry Erlenmeyer flask. If you will be calculating actual and theoretical yield, be sure to record how much salicylic acid you actually measured.
Add 6 mL of acetic anhydride and 5-8 drops of 85% phosphoric acid to the flask.
Gently swirl the flask to mix the solution. Place the flask in a beaker of warm water for ~15 minutes.
Add 20 drops of cold water dropwise to the warm solution to destroy the excess acetic anhydride.
Add 20 mL of water to the flask. Set the flask in an ice bath to cool the mixture and speed crystallization.
When the crystallization process appears complete, pour the mixture through a Buckner funnel.
Apply suction filtration through the funnel and wash the crystals with a few milliliters of ice cold water. Be sure the water is near freezing to minimize loss of product.
Perform a recrystallization to purify the product. Transfer the crystals to a beaker. Add 10 mL of ethanol. Stir and warm the beaker to dissolve the crystals.
After the crystals have dissolved, add 25 mL of warm water to the alcohol solution. Cover the beaker. Crystals will reform as the solution cools. Once crystallization has started, set the beaker in an ice bath to complete the recrystallization.
Pour the contents of the beaker into a Buckner funnel and apply suction filtration.
Remove the crystals to dry paper to remove excess water.
Confirm you have acetylsalicylic acid by verifying a melting point of 135C.

After that latest post, I'm changing my opinion to just plain MORON.

kimmsr:

Thanks for the info about the aspirin. Yes, I've tried the baking soda thing and haven't really had good results. How often do you apply?

TMG1:

That's why I was inquiring about it -- It sounded very inexpensive if all it took was a few tabs/gal. I read about it HERE -- click on my link above.

Kevin

Aw, c'mon! You were TRYING to be funny, now so am I.

:)

Thanks Everybody. Although I didn't get a ton of feedback, the general opinion is NO aspirin.

Kevin