Lead naphthenate

In the other market areas, lead naphthenates are used on a limited basis in extreme pressure additives for lubricating oils and greases. Sodium and potassium naphthenates are used in emulsiftable oils, where they have the advantage over fatty acid soaps of having improved disinfectant properties. Catalyst uses include cobalt naphthenate as a cross-linking catalyst in adhesives (52) and manganese naphthenate as an oxidation catalyst (35). Metal naphthenates are also being used in the hydroconversion of heavy petroleum fractions (53,54) and bitumens (55). 

The action of redox metal promoters with MEKP appears to be highly specific. Cobalt salts appear to be a unique component of commercial redox systems, although vanadium appears to provide similar activity with MEKP. Cobalt activity can be supplemented by potassium and 2inc naphthenates in systems requiring low cured resin color lithium and lead naphthenates also act in a similar role. Quaternary ammonium salts (14) and tertiary amines accelerate the reaction rate of redox catalyst systems. The tertiary amines form beneficial complexes with the cobalt promoters, faciUtating the transition to the lower oxidation state. Copper naphthenate exerts a unique influence over cure rate in redox systems and is used widely to delay cure and reduce exotherm development during the cross-linking reaction. 

Warning Worm gear drives operate satisfactorily on R O gear oils, sulfur phosphorus EP oils or lead naphthenate EP oils. These oils, however, should be used only with the approval of the gear manufacturer. 

Goldberg R, Garabrant DH, Peters JM, et al. 1987. Excessive lead absorption resulting from exposure to lead naphthenate. J Occup Med 29 750-751. 

Biuret triisocyanate-adduct of hexamethylene diisocya- Mobay Chem. Co. nate with water Dibutyltin dilaurate Dimethyl 2,5-bis(ethyl-hexanoyl peroxy)hexane Benzoyl peroxide Calcium naphthenate Lead naphthenate Cobalt naphthenate Zinc naphthenate N-benzyl-N,N,dimethylamine Copper chloride Ferric chloride N,N-(Dimethylaminoethyl)-morpholine -Caprolactone Hydorquinone Xylene... 

Preparation of IPN Coatings. 1) Preparation of P(UA)-l. In lOOg of PBHI solution 3% (by weight) of calcium naphthenate, 1% of lead naphthenate, 1% of cobalt naphthenate and i% of dimethyl 2,5-bis (ethyl hexanoyl peroxy)hexane were added. Films of P(UA)-1 were prepared and cured at 80 C for 30 minutes and post cured at 120 C for 30 minutes. 

Lead chromate oxide see Chromium and chromium compounds) Lead naphthenate see Lead and lead compounds)... 

Hiatt et a/.34a-d studied the decomposition of solutions of tert-butyl hydroperoxide in chlorobenzene at 25°C in the presence of catalytic amounts of cobalt, iron, cerium, vanadium, and lead complexes. The time required for complete decomposition of the hydroperoxide varied from a few minutes for cobalt carboxylates to several days for lead naphthenate. The products consisted of approximately 86% tert-butyl alcohol, 12% di-fe/T-butyl peroxide, and 93% oxygen, and were independent of the catalysts. A radical-induced chain decomposition of the usual type,135 initiated by a redox decomposition of the hydroperoxide, was postulated to explain these results. When reactions were carried out in alkane solvents (RH), shorter kinetic chain lengths and lower yields of oxygen and di-te/T-butyl peroxide were observed due to competing hydrogen transfer of rm-butoxy radicals with the solvent. 

SYNS CYCLOHEXANECARBOXYLIC ACID, LEAD SALT LEAD NAPHTHENATE... 

Research by O Brien and Pagano [125] showed that with some metal catalysts, at least, the choice of catalyst may affect the two groups in a diisocyanate differently. With 1,8-menthane diisocyanate, the isocyanate group in the 1-position was 1.5 times more reactive toward 1-butanol than was the 8-position group when copper naphthenate was used as a catalyst. With lead naphthenate the ratio was 5.8. It might be expected that the isocyanate group with less steric hindrance could coordinate with certain catalysts more easily than one with more steric hindrance, thus accounting for the difference. 

The ratio of the rate constants for the reaction of p-menthane diisocyanate with 1- and with 2-butanol at 25° was 3.5 with copper naphthenate as the catalyst but rose to 26 with lead naphthenate. By following the reaction to high conversion with 1-butanol, the ratio of the reactivities of the two isocyanate groups was found to depend on the catalyst used as shown by the values... 

See lead naphthenate lead oleate lead stearate soap... 

In addition to tin compounds such as dibutyltin dilaurate and dibutyltin diacetate, various other metal compounds have been claimed to be effective deblocking catalysts such as zinc naphthenate (70), lead naphthenate, bismuth salts, and titanates (71), and Ca, Mg, Sr, or Ba salts of hexanoic, octanoic, naphthenic, or linolenic acid (72) and metal acetyl acetonates (73). Also combinations of organotin compounds and quaternary ammonium salts have been claimed to have a synergistic effect in lowering the deblocking temperature (74). 

K Industrial gear lubricant with sulfurized fat and lead naphthenate 173.7... 

Cyclohexanecarboxylic acid, lead salt. See Lead naphthenate... 

Naphthenic acid copper salt. See Copper naphthenate Naphthenic acid lead salt. See Lead naphthenate Naphthenic acids. See Naphthenic acid Naphthenic acids, cadmium salts. See Cadmium naphthenate Naphthenic acids, calcium salts. See Calcium naphthenate Naphthenic acid zinc salt. See Zinc naphthenate... 

Cobalt, Cobalt acetate (ous) Cobalt linoleate (ous) Cobalt naphthenate (ous) Cobalt octoate. Cobalt sulfate (ous) Cobalt tallate Copper linoleate Copper naphthenate. Copper octoate. Copper tallate Erucic acid, 2-Ethylhexolc add. Iron linoleate Iron naphthenate. Iron octoate Iron tallate Lead linoleate Lead naphthenate. Lead octoate. Lead tallate. Lithium drier Magnesium stearate Manganese acetate (ous) Manganese linoleate Manganese naphthenate Manganese octoate Manganese tallate. Menhaden oit Naphthenic add. Nickel octoate Nuact NOPB Prifrac 2990 Rosin-, Sorbitan tallate Strontium drier. Zinc 2-ethylhexanoate Zinc naphthenate Zinc tallate. Zirconium octoate... 

Busan 1030 Copper naphthenate Copper 8-qulnollnolate Cupric sulfate pentahydrate DIacetone alcohol, DIdecyIdImonlum chloride Glyceryl losinate Lead naphthenate Magnesium sllbofluorlde Methyl rosinate. Mineral spirits Noramium DA.50 Paraffin-, Pentaerythrltyl hydrogenated rosinate. Sodium chromate Sodium fluoride Tdbutyltln oxide, VM P naphtha Zbc naphthenate... 

Lead naphthenate Nuodex Napthenate Lead 24% 61790-18-9 Nissan Amine SB Soyamine 61790-31-6 Armid HT... 

Lead naphthenate (24% Pb) Cobalt naphthenate (6% Co) Mineral spirits... 

Lead monooxide. See Lead oxide, yellow Lead monosulfide. See Lead sulfide Lead monoxide Lead monoxide yellow. See Lead oxide, yellow Lead naphthenate... 

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