Input interpretation
potassium nitrite
Chemical names and formulas
formula | KNO_2 name | potassium nitrite alternate names | nitrous acid, potassium salt | potassium nitrite (1:1) mass fractions | K (potassium) 45.9% | N (nitrogen) 16.5% | O (oxygen) 37.6%
Structure diagram
Structure diagram
vertex count | 4 edge count | 2 Schultz index | 16 Wiener index | 4 Hosoya index | 3 Balaban index | 1.633
Basic properties
molar mass | 85.103 g/mol phase | solid (at STP) melting point | 350 °C density | 1.915 g/cm^3
Units
Solid properties (at STP)
density | 1.915 g/cm^3
Units
Thermodynamic properties
specific heat capacity c_p | solid | 1.262 J/(g K) molar heat capacity c_p | solid | 107.4 J/(mol K) specific free energy of formation Δ_fG° | solid | -3.603 kJ/g molar free energy of formation Δ_fG° | solid | -306.6 kJ/mol specific heat of formation Δ_fH° | solid | -4.345 kJ/g molar heat of formation Δ_fH° | solid | -369.8 kJ/mol molar heat of fusion | 16.7 kJ/mol | specific heat of fusion | 0.196 kJ/g | (at STP)
Chemical identifiers
![CAS number | 7758-09-0 PubChem CID number | 516910 SMILES identifier | N(=O)[O-].[K+] InChI identifier | InChI=1/K.HNO2/c;2-1-3/h;(H, 2, 3)/q+1;/p-1/fK.NO2/qm;-1 RTECS number | TT3750000 MDL number | MFCD00011408](../image_source/3aefd9f9e7a58f27785867dbdad78698.png)
CAS number | 7758-09-0 PubChem CID number | 516910 SMILES identifier | N(=O)[O-].[K+] InChI identifier | InChI=1/K.HNO2/c;2-1-3/h;(H, 2, 3)/q+1;/p-1/fK.NO2/qm;-1 RTECS number | TT3750000 MDL number | MFCD00011408
NFPA label
NFPA label
NFPA health rating | 0 NFPA fire rating | 1 NFPA reactivity rating | 2 NFPA hazards | oxidizing agent
Toxicity properties
lethal dosage | 200 mg/kg (oral dose for rats)
probable lethal dose for man | 30 mL (milliliters) RTECS classes | drug | mutagen | reproductive effector | human data
Ion equivalents
K^+ (potassium cation) | 1 (NO_2)^- (nitrite anion) | 1