5,6-BENZOQUINOLINE Chemical Properties

Melting point:

89-91 °C

Boiling point:

349 °C (721 mmHg)

Density 

1.1255 (rough estimate)

refractive index 

1.7270 (estimate)

Flash point:

166 °C

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

Water Solubility 

Insoluble in water

form 

Crystalline

pka

pK1: 5.00(+1) (25°C)

color 

Leaflets from H2O or pet ether

Merck 

14,1105

CAS DataBase Reference

85-02-9(CAS DataBase Reference)

EPA Substance Registry System

Benzo[f]quinoline (85-02-9)

Safety Information

Hazard Codes 

Xn

Risk Statements 

40-36/37/38

Safety Statements 

45-36/37/39-26

RTECS 

DK1428000

HS Code 

29334990

Toxicity

mma-sat 50 mg/plate 50NNAZ 7,73,83

MSDS

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5,6-BENZOQUINOLINE Usage And Synthesis

Chemical Properties

BROWN CRYSTALLINE POWDER

Uses

As a reagent for the determination of cadmium which is pptd as (C13H9N)2H2(CdI4) from dil nitric or sulfuric acid solution in the presence of potassium iodide.

General Description

Yellow crystals or white powder. Characteristic irritating odor.

Air & Water Reactions

Sensitive to prolonged exposure to air. Insoluble in water.

Reactivity Profile

5,6-BENZOQUINOLINE neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. May generate hydrogen, a flammable gas, in combination with strong reducing agents such as hydrides.

Fire Hazard

5,6-BENZOQUINOLINE is combustible.

Safety Profile

Mutation data reported. Whenheated to decomposition it emits toxic fumes of NOx.

Purification Methods

Purify as 3,4-benzoquinoline above. The picrate has m 258.1-259o (from EtOH or H2O). [Albert et al. J Chem Soc 2240 1948, Beilstein 20 III/IV 4009, 20/8 V 220.]

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