Dibutyl cresol

In the commercial process, monobutylated cresols are usually recycled to the alkylators and are converted back to dibutylated cresols which are separated into BHT and dibuty-lated meta-cresol which on dealkylation produces pure meta-cresol and isobutylene, which is recycled to the alkylators. 

Dibromoethane, 51 Dibutylamine, 51 Dibutylaminoethanol, 51 Di-tert-butyl-p-cresol, 51 Dibutyl phosphate, 51 Dibutyl phthalate (DBF), 51 Dicamba, 51 Dichloroacetic acid, 51 Dichlorobenzenes, 51 3,3 -Dichlorobenzidine and its salts, 52... 

Diazo aminobenzene Di-t-butyl-p-cresol Dibutyl tin maleate Dibutyl tin oxide Dichlorophene 2,4-Dichiorophenoxy ethyl benzoate... 

Di-tert-butyl-/7-cresol Dibenzoyl peroxide Dibenzosuberyl Dibutyl sebacate... 

BUTYLATED H T)ROXYTOLUENE BUTYLHYDRO-XYTOLUENE CAO 1 CAO 3 CATALIN CAO-3 CHEMANOX 11 DBMP DBPC (technical grade) DIBUTYLATED HYDROXYTOLUENE 2,6-DI-tert-BUTYL-p-CRESOL (OSHA, ACGIH) 2,6-DI-tert-BUTYL-1-HYDROXY-4-METHYLBENZENE 3,5-DI-tert-BUTYL-4-HYDROXYTOLUENE 2,6-DI-terc,BUTYL-p-KRESOL (CZECH) 2,6-DI-tert-BUTYL-p-METHYLPHENOL 2,6-DI-tert-BUTYL-4-METHYLPHENOL FEMANo. 2184 4-HYDROXY-3,5-DI-tert-BUTYLTOLUENE IMPRUVOL... 

Safety Commission Consumer Products Copper (Cu) Corrosives Corticosteroids Cosmetics and Personal Care Products Cotinine Coumarins Creosote Cresols Cromolyn Cumene Cumulative Risk Assessment Cyanamide Cyanide Cyanogen Chloride Cyclodienes Cyclohexamide Cyclohexane Cyclohexene Cyclophosphamide Cyclosporine Cyfluthrin Cypermethrin Cysteine Cytochrome P-450 "2,4-D (2,4-Dichlorophenoxy Acetic Acid)" Limonene Dalapon DDT/DDE/DDD Decane DEBT (Diethyltoluamide) DEE Deferoxamine DEHP (Di-Ethyl Hexyl Phthalate) Delaney Clause Deltamethrin Deodorants Detergent Developmental Toxicology Dextromethorphan Diazepam Diazinon Diazoxide Dibenzofuran " Dib enz [a, h] anthracene" Dibromochloropropane Dibutyl phthalate Dicamba Dichlone Dichlorobenzene Dichloroethanes "Dichloroethylene, 1,1-"... 

Cresol (0-) Cyclohexane Cyclohexanone Detergents DIbutyl Phihalate Dibutyl Sebacate Diethyl Carbonate Diisobutyl Adipate Dimethyl Ether Dimethyl Phthalate... 

A,A-DIBUTYL N-(2-HYDROXYETHYL)AMINE (102-81-8) Forms explosive mixture with air (flash point 200°F/93°C). Reacts violently with strong oxidizers. Violent reaction with strong acids, isopropyl percarbonate, nitrosyl perchlorate, sodium peroxide, uranium fluoride. Incompatible with aldehydes, boranes, cellulose nitrate (of high surface area), cresols, isocyanates, nitrates, nitric acid, organic anhydrides, phenols, sulfuric acid. 

Now let us consider the separation of 2,6-xylenol// -cresol mixtures. Here, the situation is reversed. The distribution coefficient of 2,6-xylenol (pAf = 10.62) is higher than that of /j-cresol (pATg = 10.28) because of the close proximity of the two methyl groups to the hydroxyl group. For such a mixture, the use of a polar solvent will be detrimental because a free -OH group on / -cresol can interact with polar solvents. Thus an inert solvent is a better choice. Indeed, separation factors are about 6 in dibutyl ether, 13 in benzene, and 35 in n-heptane (Gaikar and Sharma, 1985). 

Copper sulfate Cresol Cupric chloride, 5% Cupric chloride, 50% Cyclohexane Cyclohexanol Dibutyl phthalate Dichloroacetic acid Dichloroethane (ethylene dichloride) 300 149... 

Di-t-butyl-p-cresol. See BHT Dibutyl decanedioate. See Dibutyl sebacate Di-n-butyidiacetoxystannane. See Dibutyltin diacetate Dibutyldiglycol. See Diethylene glycol dibutyl ether Dibutyidithiocarbamic acid zinc salt. See Zinc dibutyidithiocarbamate... 

Octolite 628. See Dilauryl thiodipropionate Octolite 647. See 2,2,4-Trimethyl-1,2-dihydroquinoline polymer Octolite 682. See Styrenated diphenylamine Octolite WL. See p-Cresol/dicyclopentadiene butylated reaction product Octomer DBM. See Dibutyl maleate Octomer DIBM. See Diisobutyl maleate Octomer DIOM. See Diisooctyl maleate Octomer DOM. See Dioctyl maleate Octopirox . See Piroctone olamine Octopoi NB-47. See Sodium di-n-butyl dithiocarbamate Octopoi SBZ-20. See Sodium dibenzyidithiocarbamate Octopoi SDB-50. See Sodium di-n-butyl dithiocarbamate Octopoi SDE-25. See Sodium diethyidithiocarbamate Octopoi SDM-40. See Sodium dimethyidithiocarbamate Octosol 449. See Potassium oleate Octosol 474. See Steartrimonium chloride Octosol 562] Octosol 571. See Laurtrimonium chloride... 

Ambergris Ambrettolide Asafetida (Ferula foetida) extract Balsam copaiba (Copaifera officinalis) Balsam Peru (Myroxylon pereirae) Benzyl cinnamate Benzylsalicylate L-Borneol 6-t-Butyl-m-cresol C12-15 alkyl benzoate Cinnamyl acetate Cinnamyl alcohol Civet Dibutyl phthalate Diethyl phthalate Dimethyl isophthalate 1,4-Dioxacyclohexadecane-5,16-dione Ethylene glycol diacetate Geranyl phenylacetate Hexyl benzoate... 

Figure 6.3 Molecular mass v. retention volume relationships. (1) n-alkanes (2) toluene, p-xylene and diethylphthalate (3) n-alcohols (4) 2, 6-di-tert-butyl p-cresol, dibutyl adipate, di-n-decyl phthalate and dodecyl phthalate (5) nonylphenol-formaldehyde adducts (6) TDMQ adducts.

Synonyms 2,6-di-fert-butyl-i-hydroxy-4-methylbenzene 2,6-di-tert-butyl-4-methylphenol 3,5-di-tert-butyl-4-hydroxytoluene 4-hydroxy-3,5-di-terf-butyltoluene BHT butylhydroxytoluene dibutylated hydroxytoluene butylated hydroxytoluene di-n-butyl hydroxytoluene 4-methyl-2,6-di-t-butyl-phenol 2,6-bis(i,i-dimethylethyl)-4-methylphenol Annulex BHT Antracine 8 Catalin CAO-3 Dalpac DBPC Embanox BHT Hydagen DEO Impruvol lonol CP Sustane Tenox BHT Topanol OC and o Vianol di-ferf-butyl-p-cresol bis(i,i-dimethylethyl)-4-methylphenol Topanol... 

Dibutyl phthalate cyclohexanone, phthalide 2-Ethyl-1 -hexanol 2,6-Di-rert-butyl-p-cresol Phthalates, fatty acids, phenols, siloxanes, acrylates, aliphatics, amides°... 

UVA 2-hydroxy-4-octyloxybenzophenone 2-hydroxy-4-methoxybenzophenone 2-(2H-benzotriazol-2-yl)-p-cresol 2-(2H-benzotriazole-2-yl)-4,6-di-tert-pentylphenol 2-(2H-benzotriazole-2-yl)-4-(1,1,3,3-tetraethylbutyl)phenol 2,4-di-tert-butyl-6-(5-chloro-2H-benzotriazole-2-yl)-phenol 2-[4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl]-5-(octyloxy) phenol ethyl-2-cyano-3,3-diphenylacrylate HAS 1,3,5-tri-azine-2,4,6-triamine, N,N [1,2-ethane-diyl-bis[[[4,6-bis[butyl-(1,2,6,6-pentamethyl-4-piperidinyl)amino]-1,3,5-triazine-2-yl] imino]-3,1 -propanediyi] bis[N ,N -dibutyl-N ,N -bis(1,2,2,6,6-pentamethyl-4-piperidinyl)- bis(2,2,6,6-tetramethyl-4-piper-idyl) sebacate 2,2,6,6-tetramethyl-4-piperidinyl stearate N,N -bisformyl-N,N -bis-(2,2,6,6-tetramethyl-4-piperidinyl)-hexamethylendiamine alkenes, C20-24-.alpha.-, polymers with maleic anhydride, reaction products with 2,2,6,6-tet-ramethyl-4-piperidinamine 1,6-hexanediamine, N, N -bis(2,2,6,6-tetramethyl-4-piperidinyl)-, polymers with 2,4-di-ohloro-6-(4-morpholinyl)-1,3,5-triazine 1,6-hexanediamine, N,N -bis(2,2,6,6-tetramethyl-4-piperidinyl)-, polymers with morpholine-2,4,6-trichloro-1,3,5-triazine reaction products, methylated Phenolic antioxidants ethylene-bis(oxyethylene)-bis(3-(5-tert-butyl-4-hydroxy-m-tolyl)-propionate) 2,6,-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5,-triazine-2-ylamino) phenol pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate) 2-(1,1 -dimethylethyl)-6-[[3-(1,1 -dimethylethyl)-2-hydroxy-5-methylphenyl] methyl-4-methylphenyl acrylate isotridecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate 2,2 -ethylidenebis (4,6-di-tert-butylphenol) 2,2 -methylenebis(4-ethyl-6-tertbutylphenol) 3,5-bis(1,1-dimethyethyl)-4-hydroxy-benzenepropanoic acid, C13-15 alkyl esters phenol, 4-methyl-, reaction products with dicyclopen-tadiene and isobutene Phosphite trinonylphenol phosphite isodecyl diphenyl phosphite... 

Stabilizers UVA 2,4-dihydroxybenzophenone 2-(2H-benzotriazol-2-yl)-p-cresol 2-(2H-benzotriazole-2-yl)-4,6-di-tert-pentylphenol 2-(2H-benzotriazole-2-yl)-4-(1,1,3,3-tetraethylbutyl)phe-nol HAS 1,3,5-triazine-2,4,6-triamine, N,N [1,2-ethane-diyl-bis[[[4,6-bis[butyl(1,2,6,6-pentamethyl-4-piperidinyl) amino]-1,3,5-triazine-2-yl]imino]-3,1 -propanediyl]bis[N ,N -dibutyl-N ,N -bis(1,2,2,6,6-pentamethyl-4-piperidinyl)- bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate 2,2,6,6-tetra-methyl-4-piperidinyl stearate ... 

Phenol, because of its biodegradability, is seldom detected in sediments. The same may be generally said about a number of other compounds such as the cresols, phenylphenol, and nonylphenol. By contrast, some of the alkylphenols occur at remarkably high concentrations, particularly near waste discharge sites. For example, Jungclaus et al. (1978) reported that two isomers of dibutylphenol reached 100-150 mg kg in the Pawtuxet River, whereas the corresponding maximum values for tributylphenol and dibutyl-methyl phenol were 25 and 60 mg kg respectively. Although comparable residues probably occur in the sediments of other industrial zone rivers, the environmental implications of such levels are not known at this time. 

These methods are applicable to the determination of dibutyl and di-isononyl phthalates, and of the Cjo to C20 alkane sulfonates of phenol or cresol. Several workers have discussed the determination of di(2-diethylhexyl)phthalate [25] in milk using HPLC [25] and in milk and cheese [26, 27] and butter [26, 28]. Page and Lacroix studied the transfer and migration of phthalate esters from aluminium foil paper to butter and margarine [29]. 

Manuf./Distrib. Aldrich Allchem Ind. Arkema BASF AG BASF Celanese Sigma-Aldrich Chemie GmbH/Fluka Sigma Spectrum Chems. Lab. Prods. n-Dibutylamine Di-n-butylamine. See Dibutylamlne Dibutyl-1,2-benzene dicarboxylate. See DIbutyl phthalate 2,6-DI-t-butyl-p-cresol Di-t-butyl-p-cresol. See BHT DIbutyl hexanedioale. See Dibutyl adipate Dibufyl ketone. See Diisobutyl ketone Dibutyl maleate... 

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