ChemicalBook >  Product Catalog >  Chemical Reagents >  Organic reagents >  Aromatics >  Indene

Indene

Basic information Description References Safety Related Supplier

Indene Basic information

Product Name:
Indene
CAS:
95-13-6
MF:
C9H8
MW:
116.16
EINECS:
202-393-6
Mol File:
95-13-6.mol
More
Less

Indene Chemical Properties

Melting point:
−5-−3 °C(lit.)
Boiling point:
181-182 °C(lit.)
Density 
0.996 g/mL at 25 °C(lit.)
vapor pressure 
1.7 hPa (20 °C)
refractive index 
n20/D 1.595(lit.)
Flash point:
138 °F
storage temp. 
2-8°C
solubility 
organic solvents: miscible
pka
20(at 25℃)
form 
Crystalline Powder
color 
White to pale yellow
Water Solubility 
INSOLUBLE
Sensitive 
Light Sensitive
Merck 
14,4939
BRN 
635873
Stability:
Stable, but air and light sensitive; may polymerize upon exposure to light. Typically contains aroung 80 - 100 ppm of p-tert-butylcatechol as inhibitor. Refrigerate. Flammable. Incompatible with strong oxidizing agents.
InChIKey
YBYIRNPNPLQARY-UHFFFAOYSA-N
CAS DataBase Reference
95-13-6(CAS DataBase Reference)
NIST Chemistry Reference
Indene(95-13-6)
EPA Substance Registry System
Indene (95-13-6)
More
Less

Safety Information

Hazard Codes 
Xn
Risk Statements 
10-65-36/37/38-20
Safety Statements 
23-24/25-62-37/39-26
RIDADR 
UN 3295 3/PG 3
WGK Germany 
1
RTECS 
NK8225000
8
TSCA 
Yes
HSCode 
2902 90 00
HazardClass 
3
PackingGroup 
III
Hazardous Substances Data
95-13-6(Hazardous Substances Data)

MSDS

More
Less

Indene Usage And Synthesis

Description

Indene (also called 1H-Indene, C9H8) is a flammable polycyclic hydrocarbon. It is a colorless and aromatic smelling liquid. It is used in the synthesis of new C60 derivative (indene-C60 Bisadduct) and to prepare polyindene by the controlled cationic polymerization initiated with cumyl methyl ether/TiCl4 in CH2Cl2.  Polyindene is further used to synthesize polyolefins. Indene is also used in the synthesis of istatins, in the production of indene/cumarone thermoplastic resins, and in the production of hydrocarbon resins. These industrial resins, also called indene-coumarone resins, are mainly consumed by the paints & coatings, rubber, and construction industries.
It should be stored in a cool place. The container should be kept tightly closed in a dry and well-ventilated place. Containers which areopened must be carefully resealed and kept upright to prevent leakage. Indene is incompatible with strong oxidizing agents. Recommended storage temperature is 2 - 8°C. Indene is sensitive to light.

References

[1] https://en.wikipedia.org/wiki/Indene
[2] https://www.alfa.com/de/catalog/L12665/
[3] Stephen F. Hahn, Marc A. Hillmyer (2003) High glass transition temperature polyolefins obtained by the catalytic hydrogenation of polyindene, 36, 71-76.

Chemical Properties

Yellow green clear liquid

Uses

Preparation of coumarone-indene resins, intermediate.

Definition

indene: A colourless flammable hydrocarbon,C9H8; r.d. 0.996; m.p.–1.8°C; b.p. 182.6°C. Indene is anaromatic hydrocarbon with a five-memberedring fused to a benzenering. It is present in coal tar and isused as a solvent and raw materialfor making other organic compounds.

General Description

A colorless liquid derived from coal tar. Fp: -2°C; bp:182°C. Density 0.997 g cm-3. Insoluble in water but soluble in organic solvents.

Reactivity Profile

Indene is combustible (flash point between 140°F and 200°F). Polymerizes and oxidizes on standing in the air. This reaction is accelerated by heating, acids, and catalysts, including peroxides. Has exploded during nitration with a mixture of H2SO4 and HNO3.

Hazard

Toxic by inhalation.

Purification Methods

Shake indene with 6M HCl for 24hours (to remove basic nitrogenous material), then reflux it with 40% NaOH for 2hours (to remove benzonitrile). Fractionally distil, then fractionally crystallise it by partial freezing. The higher-melting portion is converted to its sodium salt by adding a quarter of its weight of sodamide under nitrogen and stirring for 3hours at 120o. Unreacted organic material is distilled off at 120o/1mm. The sodium salts are hydrolysed with water, and the organic fraction is separated by steam disillation, followed by fractional distillation. Before use, the distillate is passed, under nitrogen, through a column of activated silica gel. It turns yellow in air as it readily oxidizes and polymerises. [Russell J Am Chem Soc 78 1041 1956, Beilstein 5 IV 1532.]

More
Less

IndeneSupplierMore

Hangzhou QiFei Chemical Co., Ltd. Gold
Tel:
571-28950939-
Email:
hzqifeihuagong@163.com;
Wuhan Greatwall chemical Co,.LTD Gold
Tel:
400-027-6116 027-86647488
Email:
sales@chemgreatwall.com
Hangzhou YiDi Industrial Co., Ltd. Gold
Tel:
0571-8269104-
Email:
yidipharma@163.com
J & K SCIENTIFIC LTD.
Tel:
010-82848833- ;010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel:
+86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
Email:
sh@meryer.com
Basic information Description References Safety Related Supplier