potassium nitrite

• ChemBase ID: 129072
• Molecular Formular: KNO2
• Molecular Mass: 85.1038
• Monoisotopic Mass: 84.95660993
• SMILES: [K+].[O-]N=O
• Canonical SMILES: [O-]N=O.[K+]
• InChI: InChI=1S/K.HNO2/c;2-1-3/h;(H,2,3)/q+1;/p-1
• InChIKey: BXNHTSHTPBPRFX-UHFFFAOYSA-M

NAMES AND DATABASE IDS

Names

• IUPAC name: potassium nitrite
• IUPAC Traditional name: potassium nitrite
• Synonyms: Potassium nitrite, ACS; Potassium nitrite; Potassium nitrite; 亚硝酸钾, ACS; 亚硝酸钾

Database IDs

• CAS Number: 7758-09-0
• EC Number: 231-832-4
• MDL Number: MFCD00011408
• Merck Index: 147649
• PubChem SID: 162223372; 24847733; 24858797; 24881876
• PubChem CID: 516910
• Chemspider ID: 22857
• Unique Ingredient Identifier: 794654G42L
• Wikipedia Title: Potassium_nitrite

CALCULATED PROPERTIES

• Acid pKa: 3.3200002
• H Acceptors: 3
• H Donor: 0
• LogD (pH = 5.5): 0.16613764
• LogD (pH = 7.4): 0.16613764
• Log P: 0.16613764
• Molar Refractivity: 7.6 cm^3
• Polarizability: 2.4691868 Å^3
• Polar Surface Area: 52.49 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: 281 g/100 mL (0 °C) ; 312 g/100 mL (25 °C) ; 413 g/100 mL (100 °C) in water; soluble in alcohol, ammonia; Soluble in water, hot alcohol, liquid NH3
• Apperance: Crystalline; white or slight yellow solid ; deliquescent
• Melting Point: 350 °C (dec.)(lit.); 350°C dec.; 440.02 °C (decomp)
• Boiling Point: 537 °C (explodes)
• Flash Point: Non-flammable
• Density: 1.914986 g/cm^3; 1.915
• pH: 7.0-10.0 (25 °C, 50 mg/mL in H2O)

Safety Information

• Storage Warning: Hygroscopic
• RTECS: TT3750000
• European Hazard Symbols: Dangerous for the environment (N); Harmful (Xn); Nature polluting (N); Oxidising (O); Oxidant (O); Toxic (T)
• UN Number: 1488; UN1488
• German water hazard class: 3
• Hazard Class: 5.1
• Packing Group: 2; II
• Risk Statements: 8-25-50; R8 R25 R50.
• Safety Statements: 45-61; S45 S61
• TSCA Listed: 是
• GHS Pictograms: GHS03; GHS06; GHS09
• GHS Signal Word: Danger
• NFPA704:
  

  0

  2

  2

  OX
• LD50: 235 mg/kg
• GHS Hazard statements: H272-H301-H400
• GHS Precautionary statements: P220-P273-P301 + P310; P221-P210-P301+P310-P321-P405-P501A
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges; Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
• RID/ADR: UN 1488 5.1/PG 2

Product Information

• Purity: ~97% (titration); ≥95.0%; ≥96.0%; ≥98.0% (RT); 96.0% min; 97%; 97-100.5%
• Grade: ACS reagent; puriss. p.a.; SAJ special grade
• Impurities: ≤0.001% heavy metals (as Pb); ≤0.01% insolubles
• Cation Traces: As: ≤1 mg/kg; Ca: ≤0.005%; Ca: ≤30 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤0.001%; Fe: ≤10 mg/kg; Fe: ≤5 mg/kg; heavy metals (as Pb): ≤0.001%; Mg: ≤0.002%; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Na: ≤0.5%; Na: ≤2500 mg/kg; Ni: ≤5 mg/kg; Pb: ≤4 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• Antion Traces: chloride (Cl-): ≤0.03%; chloride (Cl-): ≤100 mg/kg; chloride (Cl-): ≤30 mg/kg; sulfate (SO42-): ≤0.01%; sulfate (SO42-): ≤200 mg/kg; sulfate (SO42-): ≤50 mg/kg
• Quality: meets analytical specification of FCC
• Empirical Formula (Hill Notation): KNO2

DETAILS

Sigma Aldrich - 310484

Packaging
100, 500 g in glass bottle