4-dodecylphenol

The major use of technical grade 4-dodecylphenol is in lube oil additives. 4-Dodecylphenol is converted to a calcium phenolate [50910-68-4] and... 

High purity 4-dodecylphenol is used to produce specialty surfactants by its reaction with ethylene oxide. The low color of high purity 4-dodecylphenol is important in this appHcation from a standpoint of aesthetics. 4-Dodecylphenol is also used to produce phenoHc resins which are used in adhesive appHcations and printing inks. 4-Dodecylphenol is also used as an epoxy curing catalyst where the addition of 4-dodecylphenol accelerates curing of the epoxy resin to a hard, nontacky soHd. 

The worldwide consumption of 4-dodecylphenol is difficult to estimate since the majority of 4-dodecylphenol produced is captively used. Prices appear in Table 3. Litde growth in the consumption of 4-dodecylphenol is predicted because of the mature nature of the markets of its derivatives. 

Dodecylphenol (PDDP), 2 222—223 health and safety data, 2 220t physical properties of, 2 205t Dodecylsuccinic anhydride (DDSA), 10 406 Doebner-von Miller synthesis, 2 787 DOE Pro XL 3.0, features compared to other software, 8 398t Dofetilide, 5 102, 104, 106... 

Surfactants elimination via bile is faster in fed than in unfed fish [12,40], due to the higher secretion of bile into the digestive tract when fed. The fastest and slowest surfactants excreted were the linear alkylbenzene sulphonates (C12) and the alkyl sulphates (especially the C12-15) [12], respectively. Depuration of NP is quite rapid, 1.8-20 days in fathead minnows [32] and 4 days in the Atlantic salmon [41]. Within the same organism, differences in tissues were observed, with values of 20 h for adipose tissue and 18.5 h for muscle of rainbow trout [24]. The elimination rate of non-ionic surfactants is directly proportional to the ethoxylate unit number and inversely proportional to the alkyl chain length [33]. Average elimination rates (k2) of NPE02.8 and NP in clams were 1.8 and 1.4 per day, respectively [21], and decreasing k2 values from 0.19 to 0.001 per day were obtained from butylphenol to dodecylphenol in salmon [42]. 

Di(2-ethylhexyl) phthalate Dimethyl phthalate Diphenylamine 4-Dodecylphenol Fenvalerate... 

These were probably the first ethoxylates produced in large quantities and were important from the mid- 1940s. They were largely based on nonylphenol with much smaller quantities of octyl and dodecylphenol derivatives. The first mole of ethylene oxide adds with relative ease to the alkyl phenol and then additional moles of ethylene oxide add to produce a Poisson distribution certainly up to the 10-mol derivative [8, 9]. 

Fig. 13. The logarithm of the first order rate constants for the hydrolysis of >-chloro-benzylidene-l,l-dimethylethylamine in water (O), in the presence of 0-01 M NaLS ( ), in the presence of 0-05 M CTAB (a), and in the presence of 0 05 m polyoxyethylene(18) dodecylphenol (A), as a function of pH at 25° and ionic strength 0 05. Cyanoacetate, acetate, phosphate, and carbonate buffers (0 02 m) were employed in the appropriate pH regions (Behme and Cordes, 1965).

The influence of sodium dodec3d sulfate, hexadecyltrimethyl-ammonium bromide and a polyoxyethylene(18) dodecylphenol on the hydrolysis of the Schiff bases p-chlorobenzylidene-l,l-dimethylethyl-amine, p-methoxybenzylidene-l,l-dimethylethylamme, and benz-hydrilidenedimethylammonium iodide (iV,iV-dimethylbenzophenone-imonium iodide) have been investigated (Behme and Cordes, 1965). The observed pseudo-first order rate constant for the hydrolysis ofp-chloro-... 

The alkylphenols behave in the same manner as fatty alcohols. The nonyl (or octyl) phenol is widely used with 8 to 12 molecules of ethylene oxide. Nonylphenol is completely soluble in water at room temperature and exhibits excellent detergency. Dodecylphenol ethoxylate is used in certain agriculture emulsifiers and dinonylphenol as low or nonfoaming ingredients of household washing machine powders [3, 4]. 

To solns of 2—8% III in toluene, 0.43—3.3 equiv of the Li, Na, or K salts of dodecylphenol was added to give solns of viscosities as high as > 100000cp. The above thickened solvents may also be used in rocket fuels]... 

Mainly POE p-nony I phenol, p-octylphenol, or p-dodecylphenol (sometimes, dinon-ylphenol), derived from disobutylene, propylene trimer, or propylene tetramer. 

Calcium salt of thiobis(C12-alkylated phenol) Calcium thiobis(dodecylphenolate) EINECS 248-159-7 Phenol, thiobisjdodecyl-, calcium salt (1 1). 

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