Description
Potassium nitrate is a pharmacopoeia-quality inorganic salt with a minimum purity of 99 % (Ph. Eur., BP), CAS number 7757-79-1 and empirical formula KNO₃. The material has a molar mass of 101,11 g/mol and a density of 2,1 g/cm³, providing a well-characterised nitrate source for analytical and formulation work. Typical applications include preparation of nitrate standards, buffer and salt systems, inorganic synthesis and controlled oxidising-media studies where potassium counter-ions are preferred. Identification through EG number 231-818-8 and UN number 1486 aids inventory control and transport classification. The Ph. Eur./BP grade supports pharmaceutical development, quality control and teaching environments that need consistent potassium nitrate without undeclared excipients, while the larger pack size suits higher-throughput or multi-user bench settings.
This article is part of Inorganic salts, in Inorganic chemicals.
Key features
- Assay (acidim., dry substance): ≥99,0 %
- pH (5 % in H2O): 4,5- 8,5
- Appearance of solution: complies
- In H2O insoluble matter: ≤0,025 %
- Loss on drying (105 °C): ≤0,5 %
- Residual solvents: complies
- Acid or alkaline react. substances: complies
- Reducible substances: complies
- Chloride (Cl): ≤0,002 %
- Phosphate (PO4): ≤0,003 %
- CAS number: 7757-79-1
- Pack sizes: 500 g, 1 kg, 5 kg
- Purity: min. 99 %, Ph. Eur., BP
- Empirical formula: KNO₃
- Molar mass: 101,11 g/mol
- Density: 2,1 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Warning
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Potassium nitrate, min. 99 %, Ph. Eur., BP, 500 g, plastic
What is this article?
Potassium nitrate, min. 99 %, Ph. Eur., BP, 500 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Inorganic salts, inside Inorganic chemicals, in Lab chemicals.
An inorganic salt is an ionic solid, a chloride, a sulfate, a nitrate, a phosphate. The degree of hydration changes the mass that contains one mole of the ion. Analytical grade limits the foreign ions. A hydrate and the anhydrous salt are not interchangeable by weight.
An inorganic chemical is a salt, an acid or base in solid form, a metal, an oxide, or an element. The waters of hydration are part of the formula: a hydrate and an anhydrous salt are different masses for the same ion. Trace metals matter when the salt will be used in analysis. Nanomaterials add particle size to the specification. Look the substance up on PubChem. Hazard classes are on ECHA, under the CLP Regulation and REACH. Transport of the dangerous ones is explained by the UNECE.
Which category should I open next?
The category is Inorganic chemicals. The sub-category is Inorganic salts. The catalogue is Lab chemicals.
Shelves beside this one are Metals, elements & oxides and Nanomaterials & quantum dots.
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