It takes the average reader and 18 minutes to read Potassium Benzoate for Pyrotechnic Whistling Compositions by Daniel J. Whelan
Assuming a reading speed of 250 words per minute. Learn more
Potassium benzoate is one of the ingredients in the formulation SR 136 Whistling Composition. However, some ambiguity exists in the chemical literature as to its hydration state. In this investigation, it was established that potassium benzoate crystallizes from water as colourless plates containing no water of crystallization and it does not appear to take up water from its environment. Its DSC thermogram, over the temperature range 310 K - 750 K, consists of a single, sharp and symmetrical endotherm, occurring near 714 K and probably due to melting, the heat of this reaction being ca 213 J/gram (50.9 cal/gram). It can be prepared from stoichiometric amounts of benzoic acid and either potassium hydroxide or potassium bicarbonate.
Potassium Benzoate for Pyrotechnic Whistling Compositions by Daniel J. Whelan is 18 pages long, and a total of 4,644 words.
This makes it 6% the length of the average book. It also has 6% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes and 25 minutes to read Potassium Benzoate for Pyrotechnic Whistling Compositions aloud.
Potassium Benzoate for Pyrotechnic Whistling Compositions is suitable for students ages 6 and up.
Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.
When deciding what to show young students always use your best judgement and consult a professional.
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