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7758-09-0
KNO2
19070801SD
97%
-100 Mesh
231-832-4
Class 5.1
UN1488
PG II
Characteristic
Potassium nitrite (distinct from potassium nitrate) is the inorganic compound with the chemical formula KNO2. It is an ionic salt of potassium ions K+ and nitrite ions NO2−, which forms a white or slightly yellow, hygroscopic crystalline powder that is soluble in water.
Chemical formula:KNO2
Molar mass:85.10379 g/mol
Appearance:white or slight yellow solid deliquescent
Density:1.914986 g/cm3
Melting point:440.02 °C (824.04 °F; 713.17 K) (decomposes)
Boiling point:537 °C (999 °F; 810 K) (explodes)
Solubility in water:281 g/100 mL (0 °C);312 g/100 mL (25 °C);413 g/100 mL (100 °C)
Solubility:soluble in alcohol, ammonia
Magnetic susceptibility (χ):−23.3·10−6 cm3/mol
Application
Potassium nitrite is used as a food preservative, paint and coating additives and analytical reagent. It is used as a strong oxidizing agent as well as involved in the preparation of heat transfer salts. In addition, it is employed as corrosion inhibitors and anti-scaling agents.
Characteristic
Potassium nitrite (distinct from potassium nitrate) is the inorganic compound with the chemical formula KNO2. It is an ionic salt of potassium ions K+ and nitrite ions NO2−, which forms a white or slightly yellow, hygroscopic crystalline powder that is soluble in water.
Chemical formula:KNO2
Molar mass:85.10379 g/mol
Appearance:white or slight yellow solid deliquescent
Density:1.914986 g/cm3
Melting point:440.02 °C (824.04 °F; 713.17 K) (decomposes)
Boiling point:537 °C (999 °F; 810 K) (explodes)
Solubility in water:281 g/100 mL (0 °C);312 g/100 mL (25 °C);413 g/100 mL (100 °C)
Solubility:soluble in alcohol, ammonia
Magnetic susceptibility (χ):−23.3·10−6 cm3/mol
Application
Potassium nitrite is used as a food preservative, paint and coating additives and analytical reagent. It is used as a strong oxidizing agent as well as involved in the preparation of heat transfer salts. In addition, it is employed as corrosion inhibitors and anti-scaling agents.
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