1-Nitroso-2-naphthol/α-Nitroso-β-nophthol
Item No.： SR0236
Store at： RT
English Name: 1-nitroso-2-naphthol; α- Nitroso- β- nophthol
Other names: α- Nitroso- β- Naphthol; Cobalt reagent; 1-nitrosonaphthol; 1,2-naphthoquinone-1-oxime
CAS No.: 131-91-9
C10H7NO2=173.17
Grade: br
Purity: ≥ 97.0% (neutralization titration)
Moisture: ≤ 0.5%
Burning residue: ≤ 0.05%
Grade: ind
Melting point: 104 ～ 108 ℃
Sensitivity test: acceptable
Physicochemical properties: brownish yellow needle crystal or powder. Easy to sublimate. Slightly soluble in water, soluble in ethanol, benzene, ether, carbon disulfide, caustic solution, carbon trichloride, carbon tetrachloride and other organic solvents, slightly soluble in cold petroleum ether. The solution is yellowish or brownish orange, and forms red or blue water-soluble complexes with CO3 +, Ru3 +, ZrO2 +, Fe2 +, etc., which can be extracted by chloroform and carbon tetrachloride
Purpose: biochemical research. It is used as a chromogenic agent for spectrophotometric determination of cobalt, palladium and zirconium. It is used as a coprecipitation agent for enriching Cr3 +, CO2 +, Fe2 +, uo, and also as an extractant for Ag +, Cd2 +, CO2 +, Cu2 +, Ni2 +, and th4 + plasma. It is used as a precipitant for measuring cobalt by weighing method. It is also used as an intermediate in organic synthesis
Saving: RT
