Potassium nitrate
Potassium nitrate (CAS: 7757-79-1, KNO3, MW: 101.10) is a white crystalline solid that is a strong oxidizing agent. It is a key ingredient in gunpowder and fireworks, and finds extensive use in chemical synthesis and as a reagent in various industrial processes. Its high purity and reliable performance make it a staple in laboratories and manufacturing facilities. TSS supplies this compound with a guaranteed assay of ≥99.0%.
Chemical Synthesis
Potassium nitrate serves as a vital reagent and oxidizer in a wide range of organic and inorganic syntheses, facilitating the formation of various chemical compounds.
Pyrotechnics
As a primary oxidizer, it is indispensable in the formulation of gunpowder, fireworks, and other pyrotechnic compositions, providing the necessary oxygen for rapid combustion.
Laboratory Reagent
Its well-defined properties and high purity make it a reliable reagent for analytical procedures and experimental work in research and development laboratories.
Industrial Applications
Used in metal treatment, glass manufacturing, and as a component in specialty fertilisers, potassium nitrate plays a role in diverse industrial sectors.
| Molecular weight | 101.10 |
|---|---|
| Empirical formula | KNO3 |
| Assay | ≥99.0% |
| Grade | JIS special grade |
| Solubility | H2O: soluble1 M at 20 °C, clear, colorless |
| pH | 5-8 (20 °C, 5%) |
| Loss on drying | ≤0.5% loss on drying, 105 °C |
| Melting point | 334 °C(lit.) |
| Impurities tested | acidity or alkalinity, compliesreducing matter, compliesresidual solvents, complies≤0.001% heavy metals (as Pb)≤0.005% ammonium (NH4) |
| Suitability | complies for appearance of solution |
Hazard statements
- H272May intensify fire; oxidiser
Precautionary statements
- P220Keep away from clothing and combustible materials
| Protective equipment | Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 1486 5.1 / PGIII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | O |
| Risk statements (R) | 8 |
| Cation traces | As: ≤1 mg/kgCa: ≤50 mg/kgCu: ≤10 mg/kgFe: ≤10 mg/kgNa: ≤1000 mg/kgPb: ≤4 mg/kgZn: ≤10 mg/kg |
| Anion traces | chloride (Cl-): ≤10 mg/kgnitrite (NO2-): ≤5 mg/kgsulfate (SO42-): ≤100 mg/kg |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Availability | available only in Japan |
|---|---|
| Absorption | absorption1M/328 nm, H2O cut-off |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Potassium nitrate used for?
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Potassium nitrate is primarily used in chemical synthesis, pyrotechnics (as a component of gunpowder and fireworks), as a laboratory reagent, and in various industrial applications like metal treatment and glass manufacturing.
What is the CAS number and formula for Potassium nitrate?
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The CAS number for Potassium nitrate is 7757-79-1, and its chemical formula is KNO3.
What grade and purity does Tech Serve Solutions supply for Potassium nitrate?
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Tech Serve Solutions supplies Potassium nitrate in JIS special grade with an assay of ≥99.0%. We do not represent this product as meeting USP, BP, or EP pharmacopoeial standards.
How should Potassium nitrate be handled safely?
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Potassium nitrate is an oxidizer (H272) and should be kept away from heat, sparks, and open flames. Always use appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator (type N100/P1/P3), and store it separately from combustible materials.
Is Potassium nitrate available for export from Japan?
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Currently, Potassium nitrate supplied by TSS is available only within Japan.
How can I request a quote or sample for Potassium nitrate?
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To request a quote or sample for Potassium nitrate, please contact our sales team through the TSS website or by calling our dedicated customer service line.
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