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Potassium 2,4,6-trinitrophenolate

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Potassium 2,4,6-trinitrophenolate

EINECS 209-361-0
CAS No. 573-83-1 Density g/cm3
PSA 160.52000 LogP 3.12460
Solubility N/A Melting Point 122-123oC
Formula C6H2KNO7 Boiling Point 303.6°Cat760mmHg
Molecular Weight 267.196 Flash Point 133.9°C
Transport Information N/A Appearance N/A
Safety An explosive. Reaction with 2,2-dinitro-2-fluoroethoxycarbonyl chloride forms the explosive ester 2,2-dinitro-2-fluoroethyl-2,4,6-trinitrophenyl carbonate. When heated to decomposition it emits toxic fumes of K2O. See also PICRATES. Risk Codes N/A
Molecular Structure Molecular Structure of 573-83-1 (POTASSIUM 2,4,6-TRINITROPHENOLATE) Hazard Symbols N/A
Synonyms

POTASSIUM PICRATE ANHYDROUS;POTASSIUM PICRATE;Picric acid potassium;potassium 2,4,6-trinitrophenoxide;Kaliumpikrat;2,4,6-trinitro-phenol,potassium salt;2,4,6-trinitro-phenopotassiumsalt;

Article Data 22

Potassium 2,4,6-trinitrophenolate Chemical Properties

IUPAC Name: Potassium 2,4,6-trinitrophenolate
The molecular formula of Potassium picrate (CAS NO.573-83-1) is C6H2KN3O7.

                                  
The molecular weight of Potassium picrate (CAS NO.573-83-1) is 267.19.
Synonyms of Potassium picrate (CAS NO.573-83-1): Phenol, 2,4,6-trinitro-, potassium salt (1:1) ; Picric acid, potassium salt ; Potassium 2,4,6-trinitrophenolate
Enthalpy of Vaporization: 56.56 kJ/mol
Flash Point: 133.9 °C 
Boiling Point: 303.6 °C
EINECS: 209-361-0

Potassium 2,4,6-trinitrophenolate Uses

  Potassium picrate (CAS NO.573-83-1) is used as chemical reagent, organic synthesis, pharmaceutical intermediate. Potassium picrate is used to determine the concentration of nonionic surfactants in water; materials detectable by this method are called potassium picrate active substances (PPAS).

Potassium 2,4,6-trinitrophenolate Production

 As with other picrates, potassium picrate may be produced by the neutralization of picric acid with the corresponding carbonate. As picric acid is barely soluble in water the reaction must be done in an appropriate solvent like methanol. First dissolving the picric acid in methanol and then adding potassium carbonate will result in potassium picrate.Temperature control is important to prevent detonation or excessive methanol evaporation.

Potassium 2,4,6-trinitrophenolate Safety Profile

An explosive. Reaction with 2,2-dinitro-2-fluoroethoxycarbonyl chloride forms the explosive ester 2,2-dinitro-2-fluoroethyl-2,4,6-trinitrophenyl carbonate. When heated to decomposition it emits toxic fumes of K2O. See also PICRATES.

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