DL-limonene

Earlier workers established the presence of a-pinene, (3-pinene, 1-a-phellandrene, dl-limonene, piperonal, dihydrocarveol, a compound melting at 161°C, P-caryophyllene and a piperidine complex from the essential oil obtained by steam distillation of ground Malabar pepper. The above compounds were identified by the classical methods of derivatization and degradation. They also reported the presence of epoxy dihydrocary-... [Pg.26]

CAJEPUTENE CINENE DIPANOL DIPENTENE INACTIVE UMONEiNE KAUTSCHIN LIMONENE dl-LIMONENE l,8(9)-p-MENTHADI-ENE 1-METHYL-4-ISOPROPENYL-1-CYCLOHEXENE... [Pg.865]

Pyrolysis of polyisoprene takes place by a free radical mechanism and generates mainly isoprene (MW=68), a dimer of isoprene (DL-limonene, MW=138), and several other unsaturated hydrocarbons (see Sections 2.6 and 6.1). The mass spectra fragmentation (generating fragments with specific mass/charge (m/z) ratios) of a model molecule simulating polyisoprene (isoprene oligomer) occurs by the mechanisms as indicated below ... [Pg.58]

A pyrolysis study done at 384 C [4] showed that isoprene is about 28 /o (by weight) and 60 /o is DL-limonene. Other compounds with more than five carbon atoms were also detected in natural rubber pyrolysate. Some of them are shown in Table 6.1.2. [Pg.204]

Besides DL-limonene, other isomers were also identified in the rubber pyrolysates [5], including a linear compound ... [Pg.205]

The compounds with the formula C6H7-(C5H8)k-C5H9 will have the molecular weight (68)k where k = 0,1,2. ... The formation of 1-methyl-4-isopropenylcyclohexene (DL-limonene) during the pyrolysis of polyisoprene also comes from an intramolecular transfer step ... [Pg.207]

One important industrial application of vulcanized rubber pyrolysis is related to the processing of used tires (which are generated worldwide at a rate of over 5 million tons per year). The shredded scrap tires are commonly pyrolysed between 450 and 600" C, generating char (37-38 wt.%), oils (53-58 wt.%), and gases (4-9 wt.%) [14, 15]. The gases are composed mainly of H2, CH4, C4H6, CO, CO2. Other aliphatic hydrocarbons were also detected in gases. The oils contain a mixture of hydrocarbons, with DL-limonene as a main component (see Table 6.1.2). However, of special interest was the... [Pg.211]

Pakdel, H., C. Roy, H. Aubin, G. Jean, and S. Coulombe. 1991. Formation of dl-limonene in used tire vacuum pyrolysis oils. Environ. Sci. Technol. 25 1646-1649. [Pg.418]

Cyclohexene-1,2-dicarboxylic acid. See Tetrahydrophthalic anhydride Cyclohexene, 1-methyl-4-(1-methylethenyl)-. See dl-Limonene... [Pg.1059]

R 141b. See Dichlorofluoroethane Racemic limonene. See dl-Limonene Radiant yellow. See Pigment yellow 14 Raney copper. See Copper... [Pg.1331]

Cindet AP-50. See Polyacrylic acid Cinene. See d-Limonene dl-Limonene Cineol 1,8-Cineol Cineole. See Eucalyptol 1,4-Cineole... [Pg.951]

L-o-1,2-Dipalmitoyl-sn-phosphatidylglycerol sodium salt. See Sodium 1,2-dipalmitoyl-sn-glycero (3) phosphatidylcholine Dipalmityl adipate. See Dicetyl adipate Dipalmitylamine. See Dipalmitamine DIPAN. See Diphenylacetonitrile Dipanol. See dl-Limonene m-DIPB. See 1,3-Diisopropyl benzene p-DIPB. See 1,4-Diisopropyl benzene diPE. See Dipentaerythritol Di (PEG-9 nonyl phenyl ether) citrate Di (PEG 450 nonyl phenyl ether) citrate. See Dinonoxynol-9 citrate... [Pg.1494]

Dipentene. See l-Limonene Dipentene (INCI). See dl-Limonene Dipentenedimercaptan. See D-Limonene dimercaptan... [Pg.1495]

Dipentene Extra. See Terpinolene Dipentene, p-menthane-2,9-dithiol. SeeD-Limonene dimercaptan Dipentene No. 122. See dl-Limonene Dipentene polymer. See Polydipentene Dipentene resin, hydrogenated. See Hydrogenated dipentene resin Dipentene-styrene resin CAS 64536-06-7... [Pg.1495]

Inactive limonene. See dl-Limonene Incense EA] Incense H] Incense. See Olibanum Incense extract. See Olibanum (Boswellia carterii) extract... [Pg.2161]

Methyl-4-isopropenylcyclohexene 1 -Methyl-4-isopropenyl-1-cyclohexene. See dl-Limonene 1-Methyl-4-isopropenyl-6-cyclohexen-2-ol. See Carveol... [Pg.2646]

Racemic limonene. See dl-Limonene Racemic mandelic acid. See Mandelic acid Racemic menthol. See Menthol Racemic pantothenyl alcohol. See DL-Panthenol... [Pg.3815]

See also d-Limonene dl-Limonene l-Limonene a-Pinene p-Pinene... [Pg.4337]

Ammonium lauryl sulfate dispersant, drying agents dl-Limonene dispersant, dust control Oleth-3 Oleth-5 dispersant, dye bath leveling Disodium decyl diphenyl ether disulfonate dispersant, dye leveling compounds PEG-5 soyamine... [Pg.5107]

Z)-N-(2-Aminoethyl-N -(2-(2-(8-heptadecenyl)-4,5-dihydro-1 H-imidazol-1 -yl) ethyl) ethylenediamine Guar hydroxypropyltrimonlum chloride Laureth-4 carboxylic acid Laureth-6 carboxylic acid Lauryl hydroxyethyl Imidazoline Octoxynol-11 Octyidodecyl stearoyl stearate PEG-8 cocoate PEG-20 hydrogenated castor oil PEG-60 hydrogenated tallowate PEG-12 ricinoleate Steareth-9 stearate Steareth-10 stearate Steareth-12 stearate dispersant, enamels dl-Limonene... [Pg.5108]

Glyceryl laurate dl-Limonene PEG-2 hydrogenated tallowamine PEG-20 hydrogenated tallowamine dispersant, ore flotation N-Oleyl-1,3-propanediamine Pentasodium ethylene diamine tetramethylene phosphonate Tallow propylene diamine dispersant, paint pigments Glass... [Pg.5114]

EO/PO block polymer or copolymer EO/PO ethylenediamine block copolymer Ethanolamine Lauramine Laureth-8 Laureth-9 dl-Limonene Meroxapol 105 Meroxapol 171 Meroxapol 172 Meroxapol 174 Meroxapol 252 Meroxapol 254 Meroxapol 258 Meroxapol 311 Nonoxynol-2 Nonoxynol-4 Nonoxynol-6 Nonoxynol-9 Nonoxynol-10 Nonoxynol-12 Nonoxynol-13 Nonoxynol-20 Nonoxynol-6 phosphate Nonyl nonoxynol-150... [Pg.5114]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...