KNO3 Stump Remover: Is 13-0-44 Pure Enough?

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SUMMARY

The discussion centers on the purity of KNO3 stump remover with an NPK rating of 13-0-44. Users indicate that while the product is likely around 98% pure, impurities can affect its performance in applications like black powder (BP) production. Excess sulfur and charcoal residue suggests that the product may not meet the user's expectations for purity. Additionally, the conversation highlights the legal implications of making explosives without proper licensing.

PREREQUISITES
  • Understanding of NPK ratings in fertilizers
  • Knowledge of potassium nitrate (KNO3) and its applications
  • Familiarity with black powder (BP) composition and production
  • Awareness of legal regulations regarding explosive materials
NEXT STEPS
  • Research methods to purify potassium nitrate for specific applications
  • Learn about the legal requirements for handling and producing explosives
  • Explore alternative stump removal methods that do not involve explosives
  • Investigate the chemical properties and uses of fertilizers with similar NPK ratings
USEFUL FOR

This discussion is beneficial for chemists, horticulturists, and individuals interested in the safe handling of fertilizers and explosives, particularly those exploring the use of potassium nitrate in various applications.

fireboytommy
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I have bought a stump remover for KNO3 and it has the numbers 13-0-44, which i have heard is pretty good. I was just wondering, how pure is it? and also if i could remove those impurities. I have tried making BP with it and it didn't do much. lots of excess sulfur and charcoal was left over, so I am thinking that its not so pure. Also, if a product has the same numbers as another one, are they exactly the same purity?
 
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For fertilizers, there is an NPK rating, which is the set of numbers "13-0-44" in the case of potassium nitrate (which is probably about 98% pure). It refers to relative amounts of N=nitrogen, P=phosphorus and K=potassium.

You seem to be interested in making explosives, and I assume BP is blasting powder.

One should be very careful because of the potential explosiveness.

Also, making explosives without a license could be illegal. Check your state and local ordinances.

I would discourage you from trying to make explosives.
 

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