
Potassium Nitrate (KNO3 ) Uses
- It is used as a form of fertilizer as it contains all the macronutrients needed for the plants to grow.
- It is used as gunpowder in explosives such as bombs, grenades, etc.
- Used in the manufacturing and production of cigarettes.
- It is used extensively used in the preservation of hides
- It has medicinal applications such as a diuretic in medicine
What are some natural sources of potassium nitrate?
- Ham Ham is often the highest source of dietary nitrates. A single 100 g serving of cured ham has as much as 890 mcg of nitrates. ...
- Bacon Bacon has up to 380 mcg of nitrates per 100 g of weight. ...
- Deli Meat Deli meat is another major source of harmful nitrates. ...
- Hot Dogs Hot dogs are one of the most processed sources of meat on the market. ...
Is potassium nitrate used to make gun powder?
The gunpowder used is made primarily of potassium nitrate, mixed with charcoal and sulfur. Potassium nitrate is used in both force-and-spark fireworks as well as the colorful flame varieties. It is also used for propulsion in model rockets.
Is potassium nitrate a natural food preservative?
What Is Potassium Nitrate Food Preservative? Potassium nitrate or KNO3, is a mineral that occurs naturally, and it is a source of nitrogen. It can be found in almost every vegetable. Other common names for the chemical are saltpetre, nitrate of potash, nitre, and Chilean saltpetre. For commercial usage, it is made in laboratory setting by a ...
Is potassium nitrate an acid or base or neutral?
Therefore, Potassium nitrate (KNO3) is a neutral salt that is formed by the neutralization reaction of the strong acid (HNO3) with the strong base (KOH) HNO3 + KOH → KNO3 + H2O. According to the concept of neutralization: Strong acid + Strong base = Neutral solution. Stronger acid + Weak base = Acidic solution.
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Why is potassium nitrate used in toothpaste?
Potassium Nitrate has been used as a desensitizing agent to treat dentinal hypersensitivity. The effectiveness of a potassium nitrate is evaluated both in the form of a toothpaste and a mouthwash in a clinical study.
Is potassium nitrate harmful 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.
Can potassium nitrate go down the drain?
The disposal of this chemical does not need pretreatment and it is not necessary for any chemical reaction to be conducted before it is disposed into a landfill or down the school drain.
What happens when you put potassium nitrate in water?
When solid potassium nitrate is dissolved in water, the potassium ion is attracted by a partially negative oxygen atom, while the nitrate ion is attracted by a partially positive hydrogen atom of the water molecules, resulting in the formation of potassium hydroxide.
Is potassium nitrate in cigarettes?
Cigarette ash is the residue remaining after the burning of cigarette tobacco. Cigarette tobacco contains many more inorganic additives than other tobacco products in order to promote even and continuous burning. One of the major additives for this purpose is potassium nitrate.
What is potassium nitrate found in?
In saltpetre: Ordinary saltpetre. Potassium nitrate occurs as crusts on the surface of the Earth, on walls and rocks, and in caves; and it forms in certain soils in Spain, Italy, Egypt, Iran, and India. The deposits in the great limestone caves of Kentucky, Virginia, and Indiana have probably…
What should you not put down a drain?
10 Things You Should Never Put Down the DrainCoffee Grounds. Since coffee grounds are not completely water-soluble, when grounds mix with butter, oil or grease already coating the pipes, there's an increased risk for clogs.Butter and Margarine. ... Cooking Oil. ... Grease and Other Fats. ... Eggshells. ... Medication. ... Pasta. ... Rice.More items...•
Can you pour potassium iodide down the drain?
The proper protocol for disposal of KI is in regular household or dumpster garbage. DO NOT FLUSH the tablets or otherwise put them into the water supply.
What is safe to pour down the drain?
Experts suggest following the “three P rule” for keeping sewer drains clear–only Pee, Poop and (toilet) Paper is good to go when you've got to go. Feminine products, flushable wipes, condoms, baby wipes and other hygiene products are bound to bind up your sewer line.
What happens if you mix potassium nitrate and sugar?
It is also the principal reaction in sugar rocket fuel. A mixture of sugar and potassium nitrate is a good rocket fuel as it represents the reaction of solids (nitrate and sugar) to form gases (carbon dioxide and water). The expansion creates thrust that is used to power the rocket!
What foods contain potassium nitrate?
Potassium nitrate is a partially effective food preservative that is more frequently used to cure and smoke meats.Corned Beef. To create that vibrant red color that distinguishes corned beef, potassium nitrate is added to the brine along with the pickling spices. ... Cured Salami. Sodium Nitrite & Cancer. ... Cured Ham.
How do you use potassium nitrate in the garden?
Applications of KNO₃ to the soil are made before the growing season or as a supplement during the growing season. A diluted solution is sometimes sprayed on plant foliage to stimulate physiological processes or to overcome nutrient deficiencies.
How much potassium nitrate is lethal?
between 4 and 30 gThe lethal oral dose of potassium nitrate for an adult has been estimated to be between 4 and 30 g (about 40–300 mg NO3/kg).
Is potassium nitrate corrosive to skin?
Most important symptoms and effects (acute and delayed) Non-toxic in contact with skin (LD50 skin> 5000 mg/kg). Not irritant to skin. Slightly harmful by inhalation. Not irritant to eyes.
Is potassium nitrate carcinogenic?
IARC concluded that ingested nitrate under conditions that result in endogenous nitrosation is probably carcinogenic to humans (Group 2A). The underlying mechanism for the carcinogenicity determination is endogenous nitrosation that results in the formation of N-nitroso compounds, some of which are known carcinogens.
How does nitrate affect the body?
Nitrate can affect how our blood carries oxygen. Nitrate can turn hemoglobin (the protein in blood that carries oxygen) into methemoglobin . High levels can turn skin to a bluish or gray color and cause more serious health effects like weakness, excess heart rate, fatigue, and dizziness.
Is potassium nitrate harmful to humans?
A number of health hazards can present in potassium nitrate. It can trigger breathing issues when inhaled, including coughing and shortness of brea...
What contains potassium nitrate?
Potassium nitrate is a nitric acid crystalline potassium salt. Many products in households, agriculture, and industry use potassium nitrate. There...
Is potassium nitrate safe in toothpaste?
There is often confusion between nitrates and nitrites. The FDA recognizes nitrates used in potassium nitrate as secure and efficient for use in an...
What are the dangers of potassium nitrate?
Contact can trigger irritation of the eyes and skin. Potassium nitrate respiration may irritate the nose and throat causing sneezing and coughing....
What is potassium nitrite used for?
In the production of heat transfer salts, potassium nitrite is used. Potassium nitrite as a food additive E249 is a sodium nitrite-like preservativ...
Is potassium nitrate harmful to humans?
Potassium nitrate when breathed in will impact you. * Touch can cause discomfort to the eyes and skin. * Potassium nitrate for breathing can irrita...
Is potassium nitrate a carcinogen?
Nither IARC nor the EPA have listed carcinogenicity nitrates. There are however several potential mechanisms that can metabolise nitrates to N-nitr...
What plants benefit from potassium?
Potassium grows good lawns by encouraging deep-rooted lush, robust stems. By supporting solid stems and well-developed flowers it benefits roses an...
What is potassium nitrate used for?
Major uses of potassium nitrate are in fertilizers, tree stump removal, rocket propellants and fireworks. It is one of the major constituents of gunpowder (black powder). In processed meats, potassium nitrate reacts with hemoglobin and myoglobin generating a blue color.
Why is potassium nitrate called potassium nitrate?
Hebrew and Egyptian words for it had the consonants n-t-r, indicating likely cognation in the Greek nitron , which was Latinised to nitrum or nitrium. Thence Old French had niter and Middle English nitre. By the 15th century, Europeans referred to it as saltpetre and later as nitrate of potash, as the chemistry of the compound was more fully understood.
What is saltpetre used for?
In West African cuisine, potassium nitrate (saltpetre) is widely used as a thickening agent in soups and stews such as okra soup and isi ewu. It is also used to soften food and reduce cooking time when boiling beans and tough meat. Saltpetre is also an essential ingredient in making special porridges, such as kunun kanwa literally translated from the Hausa language as 'saltpetre porridge'. In the Shetland Islands (UK) it is used in the curing of mutton to make reestit mutton, a local delicacy.
What is the most used oxidizer in firearms?
The most famous use of potassium nitrate is probably as the oxidizer in blackpowder. From the most ancient times until the late 1880s, blackpowder provided the explosive power for all the world's firearms. After that time, small arms and large artillery increasingly began to depend on cordite, a smokeless powder. Blackpowder remains in use today in black powder rocket motors, but also in combination with other fuels like sugars in " rocket candy ". It is also used in fireworks such as smoke bombs. It is also added to cigarettes to maintain an even burn of the tobacco and is used to ensure complete combustion of paper cartridges for cap and ball revolvers. It can also be heated to several hundred degrees to be used for niter bluing, which is less durable than other forms of protective oxidation, but allows for specific and often beautiful coloration of steel parts, such as screws, pins, and other small parts of firearms.
What was the first industrial process to produce potassium nitrate?
From 1903 until the World War I era, potassium nitrate for black powder and fertilizer was produced on an industrial scale from nitric acid produced using the Birkeland–Eyde process, which used an electric arc to oxidize nitrogen from the air. During World War I the newly industrialized Haber process (1913) was combined with the Ostwald process after 1915, allowing Germany to produce nitric acid for the war after being cut off from its supplies of mineral sodium nitrates from Chile (see nitratite ).
What is the name of the compound that is used to make fertilizer?
It is a source of nitrogen, and nitrogen was named after niter. Potassium nitrate is one of several nitrogen-containing compounds collectively referred to as saltpetre (or saltpeter in North America). Major uses of potassium nitrate are in fertilizers, tree stump removal, rocket propellants and fireworks.
How to make potassium nitrate without ammonia?
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 . Potassium nitrate can also be produced by neutralizing nitric acid with potassium hydroxide.
What is the code for potassium nitrate?
For potassium nitrate (USEPA/OPP Pesticide Code: 076103) ACTIVE products with label matches. /SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses./
How much potassium nitrate is lethal?
The lethal dose of potassium nitrate for an adult ranges from 54 to 462 mg/kg.
How are nitrates reduced?
Nitrates are reduced to nitrites by the bacteria in saliva and the gastrointestinal system. The in vivo reduction of nitrates to nitrites depends on conditions that are subject to much variations such the volume and species of microflora present in the saliva/gastrointestinal tract, and stomach pH. Gastric pH is higher in infants younger than 6 months of age and during certain gastrointestinal tract infections, thereby favoring the reduction of nitrates. Nitrate is metabolized to a small extent. The biotransformation of potassium nitrate consists of nitrate reduction, nitrite formation, nitrite reoxidation to nitrate, and formation of methemoglobin or NO, in a dynamic equilibrium,,.
What is a clinical evaluation of a patient with suspected nitrate exposure?
Clinical Evaluation: History. Evaluation of a patient with suspected nitrate / nitrite exposure includes a complete medical history and physical examination. Clues to potential exposure are often obtained by reviewing the following items with the patient or family: location of home (urban, suburban, or rural); drinking water source and supply (if well water: depth, location, type of well construction, and frequency of microbiologic and nitrate testing); surrounding activities (agricultural or industrial) and proximity to drinking- water source; type of sewer system (municipal or septic) and proximity to drinking water source; recent flooding; occupations, avocations, and hobbies of family members; nutritional status (for infants: type of formula, feeding regimen, and source of dilution water ); family history, including recent use of medications by infant and mother; and history of recent gastroenteritis with vomiting or diarrhea. /Nitrates and Nitrites/
How to determine potassium nitrate and sodium monofluorophosphate?
Nitrate and monofluorophosphate are extracted from the dentifrice with deionized water and separated by a low capacity anion separator column with 0.2% sodium benzoate (adjusted to pH 5.8 +/- 0.1 with formic acid) as the mobile phase . A conductivity meter is used for concentration measurements. The method has been applied to commercial dentifrices containing both potassium nitrate and sodium monofluorophosphate. The mean recoveries for potassium nitrate and monofluorophosphate from spiked samples were 99.0% and 99.2%, respectively, with corresponding standard deviations of 1.73% and 2.55%. The minimum detectable concentration is 5 ug/mL for both nitrate and monofluorophosphate.
What is the role of potassium in the body?
Potassium transport through the hydrophobic interior of a cell membrane may be facilitated by several naturally occurring compounds that form lipid-soluble alkali metal cation complexes. Potassium has the critical role of a calcium counter-ion for numerous carboxylates, phosphates, and sulfates, and also acts to stabilize macromolecular structures. Potassium is the primary agent for common, over the counter de-sensitizing toothpaste that prevents the transmission of nerve endings to the teeth. Potassium salts, including potassium nitrate, potassium chloride or potassium citrate work by diffusion across the dentinal tubules, causing depolarization of the nerve cells. In turn, these cells become unresponsive to excitatory stimuli. The effect of the potassium nitrate accumulates over time, and it may take several weeks for patients to notice improvement of pain symptoms. Potassium nitrates control pests using a unique mechanism of action. Rather than directly poisoning rodents, nitrates support the combustion of charcoal in gas cartridges, promoting the production of toxic gases, which, are lethal to the target pest. The environmental protection agency in the USA (EPA) is only minimally concerned about the risk of direct human exposure to sodium or potassium nitrates, rather than pesticide accidents--typically involving skin burns or inhalation of toxic gases.
How much potassium cation is needed for osmotic pressure?
The potassium cation is an essential electrolyte that is important for the maintenance of intracellular osmotic pressure and for the maintenance of cell membrane potential, in particular, the potential of electrically excitable tissues. It is a regular component of the diet and is particularly abundant in fruit and vegetables. The recommended daily intake varies from 350-1275 mg in children to 1875 and 5625 mg in adults. In the United Kingdom, the recommended intake is 3.5 g/day for healthy adults. Potassium ions are believed to disturb the synapse between nerve cells, thus decreasing nerve excitation and the associated pain. Potassium nitrates are ignitable fumigants also utilized as rodenticides and insecticides. They are added to other pesticide active ingredients ( sulfur and carbon) and placed into fumigant gas cartridges, designed to be ignited and placed in pest-infested areas. The activated cartridge bombs release toxic gases which are lethal to select rodents, skunks, coyotes, and wasps. Potassium ions have demonstrated in animal studies to act directly on the nerves and to reduce sensory activity. Tooth hypersensitivity can be relieved by inactivating the intra-dental nerve and inhibiting neural transmission, using suitable medications. It has been found that potassium -to- sodium intake ratios are strongly related to cardiovascular disease risk than either nutrient alone. The data describing this relationship warrants further research for various target tissue endpoints.
What is potassium nitrate used for?
Potassium nitrate is used in gunpowder, fertilizers and in the laboratory preparation of nitric acid. Potassium nitrate is the most common desensitizing agent in over-the-counter dentifrices. At a concentration of 5%, potassium nitrate in conjunction with sodium or monofluorophosphate fluoride significantly reduces symptoms within 2 weeks ...
Why is it important to apply potassium nitrate dentifrice?
Frequent and regular application of a potassium nitrate dentifrice is necessary to avoid recurrence of symptoms, maintain a high abundance of extracellular potassium ions, and maintain the inter dental nerves in a hyperpolarized state. Potassium nitrate, often called saltpeter, occurs as an efflorescence in caverns and on soils in arid regions.
What are the health risks of potassium nitrate?
Potassium Nitrate (KNO3 ) Health Hazards 1 Potential exposure – Potassium Nitrate is used in chemical analysis, as a food additive in fertilizers in medications as a vasodilator and as antidote for cyanide poisoning. 2 Short term exposure – Potassium nitrate can affect when breathed in. Contact can cause eye and skin burns. Breathing the dust or mist can irritate the nose, throat and lungs and may cause coughing with phlegm. Higher exposures can cause pulmonary edema, a medical emergency that can be delayed for several hours. This can cause death. 3 Long term exposure – Repeated skin contact causes dermatitis, drying and cracking. May cause lung irritation, bronchitis may develop. There is limited evidence that potassium nitrite may damage the developing fetus. 4 Medical surveillance – If symptoms develop or overexposure is suspected, the following may be useful, blood test for methemoglobin. Lung function tests. Consider chest X-ray after acute overexposure. 5 Potassium nitrate is an inorganic salt which has a molecular KNO3 formula. This is a common form of nitrate which has been used for numerous uses as a component, including agricultural preservatives, fertilizers, tree stump removal, rocket propellants, which fireworks. 6 Potassium nitrate is a common active ingredient that exerts an anti-sensitive effect in toothpaste. It offers enhanced protection against the painful sensitivity of the teeth to ice, sun, acids, sweets or touch.
What is the name of the additive used in heat transfer salts?
In the production of heat transfer salts, potassium nitrite is used. Potassium nitrite as a food additive E249 is a sodium nitrite-like preservative and is approved for use in the EU, USA, Australia and New Zealand.
What is KNO3 used for?
Potassium Nitrate (KNO3 ) Uses. It is used as a form of fertilizer as it contains all the macronutrients needed for the plants to grow. It is used as gunpowder in explosives such as bombs, grenades, etc. Used in the manufacturing and production of cigarettes. It is used extensively used in the preservation of hides.
Why do farmers need potassium?
The farmers depend on potassium to grow good crops. Plants which are rich in carbohydrates like potatoes need potassium to develop tuber. Learn more about the Structure, physical and chemical properties of KNO 3 from the experts at BYJU’S. Other related links: Oxidizing Agent.
What is a sulfate based sulfate used for?
Used in the manufacturing and production of cigarettes. It is used extensively used in the preservation of hides. It has medicinal applications such as a diuretic in medicine. Used in toothpaste to make the teeth less sensitive to pain. Used in the food industry to preserve meat against microbial agents.
What is potassium nitrate?
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. Potassium nitrate is a common active ingredient in toothpaste, ...
How does potassium nitrate affect pests?
Potassium nitrates control pests using a unique mechanism of action. Rather than directly poisoning rodents, nitrates support the combustion of charcoal in gas cartridges, promoting the production of toxic gases, which, are lethal to the target pest. The environmental protection agency in the USA (EPA) is only minimally concerned about the risk of direct human exposure to sodium or potassium nitrates, rather than pesticide accidents--typically involving skin burns or inhalation of toxic gases 17.
How does potassium salt work?
Potassium salts, including potassium nitrate, potassium chloride or potassium citrate work by diffusion across the dentinal tubules, causing depolarization of the nerve cells. In turn, these cells become unresponsive to excitatory stimuli. The effect of the potassium nitrate accumulates over time, and it may take several weeks for patients to notice improvement of pain symptoms 10.
What is the role of potassium in the body?
Potassium transport through the hydrophobic interior of a cell membrane may be facilitated by several naturally occurring compounds that form lipid-soluble alkali metal cation complexes. Potassium has the critical role of a calcium counter-ion for numerous carboxylates, phosphates, and sulfates, and also acts to stabilize macromolecular structures 17.
How does potassium help with tooth hypersensitivity?
Tooth hypersensitivity can be relieved by inactivating the intra-dental nerve and inhibiting neural transmission, using suitable medications 10.
What is the primary toxic effect of nitrates?
The primary acute toxic effect of nitrates is the development of methemoglobinemia, a condition in which greater than 10% of the hemoglobin in the body is transformed into methemoglobin. When this conversion exceeds 70% the condition may result in death 9.
Which drug may decrease the excretion rate of potassium nitrate?
Triazolam may decrease the excretion rate of Potassium nitrate which could result in a higher serum level. Trichlormethiazide. Trichlormethiazide may increase the excretion rate of Potassium nitrate which could result in a lower serum level and potentially a reduction in efficacy. Triethylenetetramine.
What is potassium nitrate used for?
The most common potassium nitrate dental uses involve treating DH , as the compound is known to help reduce tooth sensitivity by calming the nerve fibers in the teeth.
Can you use salt water for fluoridation?
In areas around the world where water fluoridation isn't possible, some people consume salt that has been fortified with potassium fluoride, explains a review in the International Journal of Oral Health and Medical Research.
Does potassium nitrate help with tooth pain?
The JADA study states that dental products containing potassium nitrate as an active ingredient work by blocking the transmission of pain from your tooth to your brain. Potassium nitrate calms the tooth's nerve activity so that you feel less discomfort when eating hot, cold, sweet or sticky foods.
Is potassium fluoride the same as potassium nitrate?
Potassium fluoride is another compound that has dental uses, but it's not the same as potassium nitrate. While potassium nitrate may be found in sensitivity toothpastes and mouthwashes, potassium fluoride is sometimes found in salt. In areas around the world where water fluoridation isn't possible, some people consume salt ...
How long does it take for potassium nitrate to rot?
It would take about 8 weeks for the potassium nitrate to fully rot the stump. This time bracket will differ with different tree stumps, as some species will rot faster or slower than others.
What happens if you remove a tree stump with potassium nitrate?
After the potassium nitrate has done its job and the old tree stump has been taken out, you will be left with a barren space and a hole, caused by the stump removal.
Is potassium nitrate left out of stump removal?
Every stump removal method has its advantages, and potassium nitrate is not left out.
Is potassium nitrate noiseless?
For this reason, you need to put on some earbuds to guard against the noise. It is not so when using potassium nitrate for tree removal, as the whole process is almost noiseless. Apart from trimming the stump low with a chainsaw, ...

Overview
Potassium nitrate is a chemical compound with the chemical formula KNO 3. This alkali metal nitrate salt is also known as Indian saltpetre (large deposits of which were historically mined in India). It is an ionic salt of potassium ions K and nitrate ions NO3 , and is therefore an alkali metal nitrate. It occurs in nature as a mineral, niter (or nitre in the UK). It is a source of nitrogen, and nitrogen was named afte…
Etymology
Potassium nitrate, because of its early and global use and production, has many names. Hebrew and Egyptian words for it had the consonants n-t-r, indicating likely cognation in the Greek nitron, which was Latinised to nitrum or nitrium. Thence Old French had niter and Middle English nitre. By the 15th century, Europeans referred to it as saltpetre, specifically Indian saltpetre (sodium nitrate is chile saltpetre) and later as nitrate of potash, as the chemistry of the compound was more full…
Historical production
In Ancient India, saltpeter manufacturers formed the Nuniya caste. Saltpeter finds mention in Kautilya's Arthashastra (compiled 300BC - 300AD), which mentions using its poisonous smoke as a weapon of war, although its use for propulsion did not appear until medieval times.
A purification process for potassium nitrate was outlined in 1270 by the chemist and engineer Hasan al-Rammah of Syria in his book al-Furusiyya wa al-Manasib al-Harbiyya (The Book of Militar…
Modern production
Potassium nitrate can be made by combining ammonium nitrate and potassium hydroxide.
NH4NO3 (aq) + KOH (aq) → NH3 (g) + KNO3 (aq) + H2O (l)
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.
Properties
Potassium nitrate has an orthorhombic crystal structure at room temperature, which transforms to a trigonal system at 129 °C (264 °F).
Potassium nitrate is moderately soluble in water, but its solubility increases with temperature. The aqueous solution is almost neutral, exhibiting pH 6.2 at 14 °C (57 °F) for a 10% solution of commercial powder. It is not very hygroscopic, absorbing about 0.03% water in 80% relative humi…
Uses
Potassium nitrate has a wide variety of uses, largely as a source of nitrate.
Historically, nitric acid was produced by combining sulfuric acid with nitrates such as saltpeter. In modern times this is reversed: nitrates are produced from nitric acid produced via the Ostwald process.
The most famous use of potassium nitrate is probably as the oxidizer in blackpowder. From the …
In folklore and popular culture
Potassium nitrate was once thought to induce impotence, and is still rumored to be in institutional food (such as military fare) as an anaphrodisiac; however, there is no scientific evidence for such properties.
In Bank Shot, El (Joanna Cassidy) propositions Walter Ballantine (George C. Scott), who tells her that he has been fed saltpeter in prison. "You know why they feed you saltpeter in prison?" Ballan…
See also
• History of gunpowder
• Humberstone and Santa Laura Saltpeter Works
• Niter, a mineral form of potassium nitrate
• Nitrocellulose