Input interpretation
![potassium nitrite](../image_source/f4fa5f97ba1d9f8c16b42f88d6e0b1b7.png)
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%](../image_source/7f629a40c99631c112fad626b601bc4f.png)
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](../image_source/6588a86ff3284cd820ffdefb58a91c81.png)
Structure diagram
![vertex count | 4 edge count | 2 Schultz index | 16 Wiener index | 4 Hosoya index | 3 Balaban index | 1.633](../image_source/8ab0f051975a64b84ec65ca882e39bbe.png)
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](../image_source/97efca8701d0f0a2b336e0ee1e71e418.png)
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](../image_source/c48d13d7efbd696a42ee1a5a3d53a831.png)
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)](../image_source/db173ff19e44fd1e873d13a683c0e642.png)
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/d60732fba12f112851969fdc3c2b2445.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](../image_source/579f116a0fc11fa99993841eab5e1c6c.png)
NFPA label
![NFPA health rating | 0 NFPA fire rating | 1 NFPA reactivity rating | 2 NFPA hazards | oxidizing agent](../image_source/3d2bc19373f6d4aabf0a737c948392d6.png)
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)](../image_source/76c3869cbc849a418b3fc6e3e0b8b119.png)
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](../image_source/cb4f0f3660c15a9f13f88513dff0f9b1.png)
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](../image_source/ccf1d3b036f3b1d8a909b6585f2de722.png)
K^+ (potassium cation) | 1 (NO_2)^- (nitrite anion) | 1