2471-84-3

Basic information

• Product Name: 1H-Indene,1-methilene-
• Synonyms: 1H-Indene,1-methilene-;1-methylideneindene;1-Methylene-1H-indene;Benzofulvene;1H-Indene, 1-methylene-
• CAS NO: 2471-84-3
• Molecular Formula: C₁₀H₈
• Molecular Weight: 128.17
• Mol File: 2471-84-3.mol
• Article Data: 9

Chemical Properties

• Melting Point: 37 °C
• Boiling Point: 215.9°Cat760mmHg
• Flash Point: 77.5°C
• Appearance: /
• Density: 1.02g/cm³
• Vapor Pressure: 0.212mmHg at 25°C
• Refractive Index: 1.598
• CAS DataBase Reference: 1H-Indene,1-methilene-(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Indene,1-methilene-(2471-84-3)
• EPA Substance Registry System: 1H-Indene,1-methilene-(2471-84-3)

Safety Data

• Hazardous Substances Data: 2471-84-3(Hazardous Substances Data)

Usage

General Description

1H-Indene,1-methilene- is a chemical compound with the molecular formula C10H8. It is a derivative of indene and is commonly used in the production of various organic compounds. This chemical has a distinctive structure with a methylene group attached to the 1-position of the indene ring. 1H-Indene,1-methilene- is used in the manufacturing of dyes, pharmaceuticals, and as a building block for the synthesis of other complex organic molecules. It is also used in research and development activities in the chemical and pharmaceutical industries. Additionally, it has potential applications in the field of material science and as a precursor for the production of advanced polymers and plastics.

InChI:InChI=1/C10H8/c1-8-6-7-9-4-2-3-5-10(8)9/h2-7H,1H2

Upstream product

• 2471-88-7 1-hydroxymethylindene 
• 61034-86-4 2-(pyrrol-1-yl)-benzyl alcohol 
• 34305-47-0 1,2,3-metheno-1H-indene-2,3-dihydro 
• 275-51-4 azulene 
• 95-13-6 1-indene 
• 212613-09-7 5-(2,3-dihydro-1H-1-indenylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione 
• 536-74-3 phenylacetylene 

Relevant articles and documents

A REINVESTIGATION OF THE THERMAL REARRANGEMENTS OF NAPHTHVALENE

The previously reported thermal transformation of naphthvalene to benzofulvene has been shown to be a catalyzed process; naphthvalene rearranges to naphthalene under flow pyrolysis conditions.

Thermal isomerization of azulene. Single-pulse shock tube investigation

The thermal isomerization of azulene was studied behind reflected shocks in a pressurized driver single-pulse shock tube. The temperature range covered was 1050-1400 K at overall densities of ～2.5 × 10-5 mol/cm3. The main reaction of azulene under these conditions is a unimolecular isomerization to naphthalene, but it also isomerizes, although at a much lower rate, to another isomer. The suggested tetracyclic triene intermediate structure for the uzulene-naphthalene isomerization can lead also to transition states that can describe isomerizations to 1-methylene-1H-indene and 1,2,3-metheno-1H-indene,2,3-dihydro. Small quantities of C2H2, C4H2, C6H6, and C6H5-C≡CH were also found in the post-shock samples, particularly at high temperatures. The Arrhenius parameters of the two high pressure limit rate constants for the isomerization processes are: azulene ??? naphthalene, k1 = 1012.93 exp(-62.8 × 103/RT) s-1 azulene → second isomer, k2 = 1012.42 exp(-69.5 × 103/RT) s-1 A discussion of the mechanism for these isomerization processes is presented. * Author to whom correspondence should be addressed.

Evolution of products in the combustion of scrap tires in a horizontal, laboratory scale reactor

A horizontal laboratory reactor was used to study the evolution of byproducts from the combustion of scrap tires at five nominal temperatures (ranging from 650 to 1050 °C) and different oxygen:sample ratios A model was used to calculate the bulk air ratio (λ), and the oxygen consumption was discussed considering this ratio λ. More than 100 volatile and semivolatile compounds were identified and quantified by gas chromatography mass spectrometry, plotting their yields vs the bulk air ratio and temperature. Five different behaviors considering the bulk air ratio and the temperature were identified.

Characterization of the combustion products of polyethylene

Polyethylene (PE) was burned in a tube-type furnace with an air flow at a temperature of 600~900°C. Combustion products were collected with glass wool, glass fiber filter, and XAD-2 adsorbent. The analysis of the products was performed with GC-FID and GC-MSD. At low temperature, hydrocarbons were the major components, while at higher temperature the products were composed of polycyclic aromatic hydrocarbons. With the high performance of the Hewlett-Packard 6890GC-5973MSD, more compounds were identified in comparison with previous studies.