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salicylate vs benzoate


leedrill

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ive read that sodium salicylate will produce more thrust for whistle rockets than that of sodium benzoate and that the benzoate will produce a more raspy whistle can anyone confirm this and let me know of any different precautions to take with the salicylate mix and any recommendations for the salicylate comps
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Danny Creagan has a nice library of whistle fuel tests if you want to take a look.

 

http://www.wichitabuggywhip.com/fireworks/rockets/whistletests.html

 

Basically the take home message I always get from his tests is that despite preconcieved notions of one being better than the other, it varies on a case to case and probably day to day basis. Everyone has their preferences though. My preference is for Potassium Benzoate mostly because I got a really good deal on a bulk buy a few years ago. There are some new rocket thrust rigs hitting the market, so perhaps some more reliable data and thrust curves will be made publicly available soon.

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sodium seems to be easy to aqquire any ideas on where to source pot benzo id love to get a good bulk buy which industry uses it ive tried soap and jam makers but none seem to use it anymore
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I could help you out in the US, but I wouldn't have the first idea for Australia. Food service suppliers and places that cater to home made soft drinks, jam, spices, etc. would be where I'd start looking.
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I like sodium benzoate. I also like lifting heavy shells. One of the benefits of benz whistle is that you can use a much longer spindle than you can with straight sali whistle; I like to use my standard BP spindle. Using this combination my 1lb motors can easily lift two break 4" shells.

 

 

WB

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  • 8 years later...

Considering the price, benzoate is more cheap than sali :D (cheap is better xD),

Sali produce more thrust, but, if you have $100 of sali you'll make 20 rockets, with $100 of benzo, you make 3 times more.

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