| Identification | More | [Name]
Indene | [CAS]
95-13-6 | [Synonyms]
inden
ndene
INDENE
1-indene
1H-INDENE
Indene >
Indene Odor
Indene tech
Indene,90+%
C6H4CH2CH:CH
INDENE, 99+%
INDENE, REAG
INDONAPHTHENE
Technicalindene
1H-Indene, 90+%
Indene(Rri1391)
AKOS BBS-00004330
indene,(1H-indene)
Indene, pract., 94%
INDENE, TECH., 90+%
Indene Odor Standard
INDENE OEKANAL, 250 MG
Indene, synthesis grade
INDENE FOR SYNTHESIS 1 L
Indene@50 μg/mL in Toluene
INDENE FOR SYNTHESIS 250 ML
Indene, 90%, tech., stabilized
Indene, tech., stabilized, 90%
Indene, technical, 90%, stabilized
Indene, tech., stabilized, 90% 5GR
Indene, tech., stabilized, 90% 250GR
Indene, Stabilized with tert-Butylcatechol
1H-Indene, 90+%, stab. with 0.01% 4-tert-butylcatechol
Indene contains 50-100 ppM tert-butylcatechol as stabilizer, technical grade, >=90% | [EINECS(EC#)]
202-393-6 | [Molecular Formula]
C9H8 | [MDL Number]
MFCD00003777 | [Molecular Weight]
116.16 | [MOL File]
95-13-6.mol |
| Chemical Properties | Back Directory | [Appearance]
Yellow green clear liquid | [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.)
| [Fp ]
138 °F
| [storage temp. ]
2-8°C
| [solubility ]
organic solvents: miscible | [form ]
Crystalline Powder | [pka]
20(at 25℃) | [color ]
White to pale yellow | [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. | [Odor Threshold]
0.0038ppm | [Water Solubility ]
INSOLUBLE | [Sensitive ]
Light Sensitive | [Merck ]
14,4939 | [BRN ]
635873 | [Exposure limits]
ACGIH: TWA 5 ppm
NIOSH: TWA 10 ppm(45 mg/m3) | [InChIKey]
YBYIRNPNPLQARY-UHFFFAOYSA-N | [LogP]
3.02 at 25℃ and pH6.4 | [Uses]
Preparation of coumarone-indene resins, intermediate. | [CAS DataBase Reference]
95-13-6(CAS DataBase Reference) | [NIST Chemistry Reference]
Indene(95-13-6) | [Storage Precautions]
Store under nitrogen | [EPA Substance Registry System]
95-13-6(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R10:Flammable.
R65:Harmful: May cause lung damage if swallowed. | [Safety Statements ]
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S24/25:Avoid contact with skin and eyes .
S62:If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label . | [OEB]
A | [OEL]
TWA: 10 ppm (45 mg/m3) | [RIDADR ]
UN 3295 3/PG 3
| [WGK Germany ]
1
| [RTECS ]
NK8225000
| [F ]
8 | [TSCA ]
Yes | [HazardClass ]
3 | [PackingGroup ]
III | [HS Code ]
29029090 | [Hazardous Substances Data]
95-13-6(Hazardous Substances Data) |
| Hazard Information | Back Directory | [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. | [Chemical Properties]
Yellow green clear liquid | [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. | [Synthesis Reference(s)]
Tetrahedron Letters, 18, p. 49, 1977 DOI: 10.1016/S0040-4039(01)92547-X | [Health Hazard]
Indene is expected to be an irritant
of the mucous membranes. | [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.] |
| Questions And Answer | Back Directory | [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.
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