Where to Buy Saltpeter or Potassium Nitrate (2024)

Find Potassium Nitrate for Sale

Where to Buy Saltpeter or Potassium Nitrate (1)

By

Anne Marie Helmenstine, Ph.D.

Chemistry Expert

  • Ph.D., Biomedical Sciences, University of Tennessee at Knoxville
  • B.A., Physics and Mathematics, Hastings College

Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels.

Learn about ourEditorial Process

Updated on June 03, 2020

You used to be able to buy potassium nitrate as saltpeter in many garden supply stores. While it is difficult to find saltpeter, you can still purchase potassium nitrate, which is used to make smoke bombs and certain other fireworks.

Stores That Sell Potassium Nitrate

One of the most common sources of pure potassium nitrate is "stump remover." In the United States, you can find it at Lowes or Home Depot, among other places. Look for the Spectracide brand in those stores near the insecticides. Be sure to check the label to make certain potassium nitrate is the first (and preferably only) ingredient.

If you can't find potassium nitrateat a store in your area, you canorder it online at Amazon, plus it's a chemical you can make it yourself.

Make Potassium Nitrate

Even if you can't find potassium nitrate, you can make it. All you need is a cold pack that lists potassium nitrate as an ingredient and salt substitute that lists potassium chloride as the only ingredient. It has to be salt substitute and not "lite salt", because the latter also contains sodium chloride. If you use lite salt, you'll end up with a mixture of sodium nitrate and potassium nitrate, which might be useful for your purpose, but isn't the same as pure potassium nitrate and will burn yellow rather than purple.

You need;

  • 40 grams ammonium nitrate from the cold pack
  • 37 grams potassium chloride from the salt substitute
  • 100 milliliters water
  1. Dissolve the ammonium nitrate in the water.
  2. Filter the solution to remove any undissolved matter. You can use a coffee filter or a paper towel.
  3. Add the potassium chloride to the liquid and gently heat the mixture to dissolve the salt. Don't boil it.
  4. Filter the solution to remove solids.
  5. Chill the liquid on ice or in the freezer. The potassium nitrate will freeze out as crystals, leaving ammonium chloride in solution.
  6. Pour off the liquid and let the crystals dry. This is your potassium nitrate. You could also save the ammonium chloride, too. If you want the ammonium chloride, let the water evaporate and recover the solid material.

The reaction exchanges the ions in the compounds:

NH4NO3+ KCl → KNO3+ NH4Cl

The products can be separated because they have different solubilities. As you chill the mixture, potassium nitrate readily solidifies. Ammonium chloride is more soluble, so it remains in solution. Even though the solution is on ice or in the freezer, it won't freeze because the particles cause freezing point depression of the water. This is why these chemicals can be used to de-ice roads!

Keep in mind, the potassium nitrate you get from the reaction won't be reagent-grade purity. However, it should be pure enough for most chemistry experiments and fireworks projects.

Format

mlaapachicago

Your Citation

Helmenstine, Anne Marie, Ph.D. "Where to Buy Saltpeter or Potassium Nitrate." ThoughtCo, Oct. 11, 2022, thoughtco.com/where-to-buy-saltpeter-or-potassium-nitrate-3976011.Helmenstine, Anne Marie, Ph.D. (2022, October 11). Where to Buy Saltpeter or Potassium Nitrate. Retrieved from https://www.thoughtco.com/where-to-buy-saltpeter-or-potassium-nitrate-3976011Helmenstine, Anne Marie, Ph.D. "Where to Buy Saltpeter or Potassium Nitrate." ThoughtCo. https://www.thoughtco.com/where-to-buy-saltpeter-or-potassium-nitrate-3976011 (accessed January 26, 2023).

Where to Buy Saltpeter or Potassium Nitrate (2024)

FAQs

How can I get potassium nitrate easily? ›

Potassium nitrate can be made by combining ammonium nitrate and potassium hydroxide. An alternative way of producing potassium nitrate without a by-product of ammonia is to combine ammonium nitrate, found in instant ice packs, and potassium chloride, easily obtained as a sodium-free salt substitute.

Where can you buy potassium nitrate from? ›

Stores That Sell Potassium Nitrate

One of the most common sources of pure potassium nitrate is "stump remover." In the United States, you can find it at Lowes or Home Depot, among other places. Look for the Spectracide brand in those stores near the insecticides.

Where can you buy saltpeter? ›

Saltpeter can be tough to find early in the game, as it may not always be for sale from merchants. It can sometimes be found in random containers, but for a surefire way to obtain some, complete the Side Quest: Contract: Devil by the Well.

What is saltpeter and where can I find it? ›

Potassium nitrate, or saltpeter, is a naturally occurring mineral that is vital to the production of gunpowder. Found in limestone caves in the Arkansas Ozarks, it became one of the state's most important chemical industries during the Civil War due to the Confederacy's demand for arms.

What products have 100% potassium nitrate? ›

Things That Contain Potassium Nitrate
  • Niter. In nature, potassium nitrate takes the mineral form of niter, which has the chemical formula KNO3. ...
  • Gun Powder. Potassium nitrate serves as the main ingredient in the oldest known form of gun powder, black powder. ...
  • Fireworks, Model Rockets and Artillery. ...
  • Fertilizer. ...
  • Smoked Meats.
Apr 24, 2017

What household item has potassium nitrate? ›

Household Products

Both sensitivity toothpaste and tooth whitening products contain potassium nitrate. The salt can also be found in makeup primer. Various fertilizers, potting mixes and plant foods used in landscaping feature potassium nitrate, and stump removers also contain the salt.

Is potassium nitrate the same as saltpeter? ›

Saltpeter is one name for the compound called potassium nitrate, which has the chemical formula KNO3. Generally, saltpeter refers to the natural mineral, while potassium nitrate refers to the purified compound.

How much is potassium nitrate price? ›

The price of Potassium Nitrate products is between ₹100 - ₹125 per Kg during Jan '22 - Dec '22. These are indicative values based on popular product prices.

What is the price of saltpeter? ›

₹310.00 FREE Delivery.

Is saltpeter hard to find? ›

The only issue is that saltpeter is extremely difficult to find if you don't know where to look. Even in spaces where it's meant to be abundant, it's still in short supply and can be contested over if there are a lot of other players occupying the same space!

What's a good substitute for saltpeter? ›

The 5 Best Substitutes for Saltpeter
  • 1 – Sea Salt or Non-Iodized Salt.
  • 2 – Celery Powder.
  • 3 – Celery Juice.
  • 4 – Pink Salt.
  • 5 – Prague Salt.
Jan 9, 2023

Is Spectracide stump remover pure potassium nitrate? ›

Stump Remover. This product has 100% Potassium nitrate.

Does Lowe's sell saltpeter? ›

In the United States it can be purchased at Lowe's or Home Depot, among other places.

How did people get saltpeter? ›

The mining process involved extracting the calcium nitrate using water and large square vats to filter the cave dirt. A solution of water and calcium nitrate would then be pumped to the surface where it was combined with materials such as wood ash, and sometimes even ox blood, to create the saltpetre.

What is saltpeter typically used for? ›

Nitrates, under their popular name of saltpeter, have been used in meat products, fish and cheese for many centuries. They have been used to prevent blowing of hard cheeses by the action of gas-forming bacteria.

What is the common for potassium nitrate? ›

potassium nitrate (KNO3), also called saltpetre or nitre, an ionic white crystalline salt made up of potassium ions and nitrate ions. Uses of potassium nitrate include the manufacture of fertilizers, pesticides, glass, fireworks, explosives, and rocket fuels.

Can you make saltpeter? ›

The process for making saltpeter is very similar to that for making potash, the chief difference being the starting material. The soluble part of wood ash is mostly potassium carbonate and so when we purify it by recrystalization, the resulting product is purified potassium carbonate.

What can I use instead of potassium nitrate? ›

If you are using just sugar as most hobbyists do, potassium perchlorate or potassium chlorate works well.

What can I use instead of nitrate? ›

Celery juice or powdered celery juice are both used in commercially made nitrate-free cured meats.

What does potassium nitrate do to humans? ›

* Contact can cause eye and skin irritation. * Breathing Potassium Nitrate can irritate the nose and throat causing sneezing and coughing. * High levels can interfere with the ability of the blood to carry Oxygen causing headache, fatigue, dizziness, and a blue color to the skin and lips (methemoglobinemia).

What is the common name for saltpeter? ›

saltpetre, also spelled Saltpeter, also called Nitre, or Niter, any of three naturally occurring nitrates, distinguished as (1) ordinary saltpetre, or potassium nitrate, KNO3; (2) Chile saltpetre, cubic nitre, or sodium nitrate, NaNO3; and (3) lime saltpetre, wall saltpetre, or calcium nitrate, Ca(NO3)2.

Is potassium nitrate toxic to humans? ›

Potassium nitrate can pose a number of health risks. When inhaled, it may cause respiratory problems, including coughing and shortness of breath. Skin or eye contact may result in irritation such as redness, itching and pain.

What is potassium nitrate salt used for? ›

Potassium nitrate is an inorganic salt with a chemical formula of KNO3. It is a natural source of nitrate and has been used as a constituent for several different purposes, including food preservatives, fertilizers, tree stump removal, rocket propellants, and fireworks.

Can you make potassium nitrate at home? ›

Just mix 40 grams of ammonium nitrate with 100mL of water and stir until dissolved. Filter the mixture directly into 37 grams of potassium chloride. Gently heat until completely dissolved, do not boil. Cool the mixture to 0 Celsius in the freezer or on an ice bath.

Where can I buy nitrate powder? ›

Nitrate Powder can be found when looting various containers, mining Boulders, and Body Bags . Another source of Nitrate Powder is Stalactites and Stalagmites in underground Caves, which must be mined as well. Nitrate nodes are found in Forest, Burnt Forest, Wasteland and Desert biomes.

How much nitrate is harmful to humans? ›

Natural processes can cause low levels of nitrate in drinking water—usually less than 3 mg/L. The health concern is with levels of nitrate over 10 mg/L.

What happens when you burn saltpeter? ›

Potassium nitrate or saltpeter is a strong oxidizer in both solid and liquid state. It is found in gunpowder and fireworks, and used as fertilizer. When potassium nitrate is heated above 400 ⁰C, it starts to break down and release oxygen, which reacts with the paper.

What are the side effects of saltpeter? ›

It can pose a number of health risks. When inhaled, it may cause respiratory problems, including coughing and shortness of breath. If there is skin or eye contact then it may result in irritation such as redness, itching, and pain. It can cause kidney damage or anemia, as well as headaches and digestive distress.

How do you get saltpeter naturally? ›

Historically mined for use in food preservation, gunpowder, fertilizers, pesticides, fireworks and herbicides, saltpeter is a naturally occurring nitrate that is found in caves. Strange as it may sound, saltpeter is produced from the guano, or excrement, of bats.

Where can I find saltpeter ore? ›

Saltpeter is an Ore commonly found in desert biomes with large mountains of sand. It can be spotted either at the base in plain view or in the mountain itself.

Does urine contain saltpeter? ›

Urine in particular is the key to producing saltpetre because it provides the ammonia which oxygen and bacteria turn into nitrates – a mix of magnesium, calcium and potassium, the former two you don't want as they're very hygroscopic so your powder will get wet very easily.

Can I make potassium nitrate at home? ›

Just mix 40 grams of ammonium nitrate with 100mL of water and stir until dissolved. Filter the mixture directly into 37 grams of potassium chloride. Gently heat until completely dissolved, do not boil. Cool the mixture to 0 Celsius in the freezer or on an ice bath.

What can I use as a substitute for potassium nitrate? ›

If you are using just sugar as most hobbyists do, potassium perchlorate or potassium chlorate works well.

What are the three ingredients for gunpowder? ›

Black powder consists of a fuel (charcoal), an oxidizer (saltpeter or niter), and a stabilizer (sulfur) to allow for a constant reaction. The reaction would be slow, like a wood fire, if not for the oxidizing agent. Carbon in a fire must draw oxygen from the air, but the saltpeter in gunpowder provides the oxygen.

Can you get saltpeter from urine? ›

Urine in particular is the key to producing saltpetre because it provides the ammonia which oxygen and bacteria turn into nitrates – a mix of magnesium, calcium and potassium, the former two you don't want as they're very hygroscopic so your powder will get wet very easily.

Is vinegar high in nitrates? ›

The highest amounts of nitrate concentration in beverage products were found in packed fruit juices, soft drink, traditional verjuice, and traditional vinegar in a descending order.

Does vinegar have nitrates? ›

Vinegar, Natural Source of Nitrate Provide Way to Safeguard Organic Pork.

How can I get nitrates in 7 days? ›

Nitrate Powder can be found when looting various containers, mining Boulders, and Body Bags . Another source of Nitrate Powder is Stalactites and Stalagmites in underground Caves, which must be mined as well. Nitrate nodes are found in Forest, Burnt Forest, Wasteland and Desert biomes.

Top Articles
Latest Posts
Article information

Author: Greg O'Connell

Last Updated:

Views: 5533

Rating: 4.1 / 5 (42 voted)

Reviews: 89% of readers found this page helpful

Author information

Name: Greg O'Connell

Birthday: 1992-01-10

Address: Suite 517 2436 Jefferey Pass, Shanitaside, UT 27519

Phone: +2614651609714

Job: Education Developer

Hobby: Cooking, Gambling, Pottery, Shooting, Baseball, Singing, Snowboarding

Introduction: My name is Greg O'Connell, I am a delightful, colorful, talented, kind, lively, modern, tender person who loves writing and wants to share my knowledge and understanding with you.