2-Nitroso-1-naphthol Chemical Properties

Melting point:

150-155 °C (dec.)(lit.)

Boiling point:

303.81°C (rough estimate)

Density 

1.2427 (rough estimate)

refractive index 

1.5200 (estimate)

pka

7.47±0.10(Predicted)

form 

Solid

color 

Yellow needles from H2O or C6H6

Odor

Odorless

Water Solubility 

SLIGHTLY SOLUBLE

BRN 

1867919

CAS DataBase Reference

132-53-6(CAS DataBase Reference)

NIST Chemistry Reference

1-Naphthalenol, 2-nitroso-(132-53-6)

EPA Substance Registry System

1-Naphthalenol, 2-nitroso- (132-53-6)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26

WGK Germany 

3

RTECS 

QL4550000

F 

8

HS Code 

2929900090

Hazardous Substances Data

132-53-6(Hazardous Substances Data)

Toxicity

LD orl-rat: >500 mg/kg NCNSA6 5,35,53

MSDS

• Language:English Provider:2-Nitroso-1-naphthol
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

2-Nitroso-1-naphthol Usage And Synthesis

Chemical Properties

yellow-greenish to yellow-brownish powder

General Description

2-nitroso-1-naphthol helps in the extraction of cobalt ion as it is used as a selective complexing agent. It is used in the separation and preconcentration of Th(IV), Ti(IV), Fe(III), Pb(II) and Cr(III) by solid phase extraction.

Safety Profile

Moderately toxic by ingestion. Many nitroso compounds are carcinogens. Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits toxic fumes of NOx. See also NITROSO COMPOUNDS.

Purification Methods

Purify the naphthol by recrystallisation from pet ether (b 60-80o) or by dissolving it in hot EtOH, followed by successive addition of small volumes of water (m 158o dec). It also crystallises from *C6H6 or H2O. Crystallisation from *C6H6/pet ether gives m (106-109 o, also 109.5o). It has max at 274.5 and 382nm (CHCl3). It complexes with metals. [Beilstein 7 H 712, 7 I 385, 7 II 647, 7 III 3688, 7 IV 2419.]

2-Nitroso-1-naphthol(132-53-6)Related Product Information

• SODIUM NITROPRUSSIDE
• 1,1'-Bi-2-naphthol
• 1-Naphthol
• Nitrosylsulfuric acid
• NITROSOGUANIDINE
• 2-Naphthol
• 1-Nitroso-2-naphthol
• 7-Hydroxyaristolochic acid A
• 2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID FOR SPECTROPHOTOM. DET. 99+%,2-NITROSO-1-NAPHTHOL-4-SULPHONIC ACID TETRAHYDRATE,2-NITROSO-1-NAPHTHOL-4-SULFONIC ACID
• FLAVIANIC ACID
• Martius Yellow
• 2-nitroso-1-naphthol-4-sulfonic acid tetrahydrate
• 2-Nitro-1-naphthol
• NAPHTHOL YELLOW S
• 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT,DISODIUM 1-NITROSO-2-NAPHTHOL-3,6-DISULFONATE
• Acid Green 1
• 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
• H-ARG(ME)-OH FLAVIANATE