Paraffin, properties

Platt, J. R., Prediction of Isomeric Differences in Paraffin Properties. J. Phys. Chem., 1952 56, 328-336. 

Wiener, H. (1947b). Influence of Interatomic Forces on Paraffin Properties. J.Chem.Phys., 15, 766-766. 

Platt, J.R. (1952) Prediction of isomeric differences in paraffin properties. J. Phys. Chan., 56, 328—336. 

Wiener, H. (1947) Influence of interatomic forces on paraffin properties. J. Chem. Phys. 15 766. 

Features Compatible in useful proportions with SBR, polar elastomers, chlorinated rubber, and chlorinated paraffins Properties Gardner 12 color m.w. 1930 sp.gr. 1.01 -1.05 melt vise. 195... 

Features Compatible in useful proportions with SBR, polar elastomers, chlorinated rubber, and chlorinated paraffins Properties Gardner 10 color m.w. 1900 sp.gr. 1.01-1.05 melt vise. 203 C (10 poises) soften, pt. (R B) 142 C acid no. < 1 sapon. no. < 2 flash pt. (COC) > 450 F Picco AD1115 [Eastman]... 

Synonyms Heavy hydrotreated naphtha (petroleum) Hydrotreated heavy naphtha Naphtha, heavy hydrotreated Naphtha (petroleum), hydrotreated heavy Definition Complex combination of hydrocarbons obtained by treating a petrol, fraction with hydrogen in the presence of a catalyst consists predominantly of C6-13 hydrocarbons mixt. of C9-13 naphthenes, iso- and n-paraffins Properties Colorless liq. insol. in water dens. 0.76-0.79 g/cm vapor pressure 0.1-0.3 kPa (20 C) m.p. 0 C b.p. 155-217 C flash pt. (CC) 40-62 C autoignition temp. 255-270 C Toxicoiogy Inh. may cause dizziness, headache, drowsiness, nausea, unconsciousness contact may cause dry skin, eye redness ing. may cause cough, diarrhea, sore throat, vomiting if aspirated, may cause chem. pneumonitis Environmentai Toxic to aquatic organisms ... 

CAS 64742-52-5 EINECS/ELINCS 265-155-0 Synonyms Distillates (petroleum), hydroteated (mild) heavy naphthenic Distillates (petroleum), hydrotreated heavy naphthenic Hydrotreated heavy naphthenic distillate Hydrotreated (mild) heavy naphthenic distillate Mineral oil, petroleum distillates, hydrotreated (mild) heavy naphthenic Petroleum distillates, hydrotreated (mild) heavy naphthenic Ciassification Petroleum distillate Definition Complex combination of hydrocarbons obtained by treating a petroleum fraction with hydrogen in the presence of a catalyst consists of predominantly C20-50 hydrocarbons contains relatively few normal paraffins Properties B.p. 350 C... 

Uses Emulsifier for cosmetics water disp. emulsifier for paraffin Properties Wh. solid (30 C)... 

Chem. Descrip. Fatty alcohol polyglycol ether Ionic Nature Nonionic Uses Emulsifier for min. oils and paraffin Properties Solid HLB 10.0 100% cone. 

Chem. Descrip. Naphthenic deriv Ionic Nature Cationic Uses Emulsifierfor min. oil and paraffin Properties Paste. 

Definition Complex combination of hydrocarbons obtained by treating a petroleum fraction with hydrogen in the presence of a catalyst consists of predominantly C20-50 hydrocarbons contains relatively few normal paraffins Properties B.p. 350C... 

Sage, B. H., Lacey, W. N., "Thermodynamic Properties of Higher Paraffin Hydrocarbons and Nitrogen," Am. Petr. Inst., New York, N.Y. (1950). ... 

C. It occurs in natural gas. May prepared by reduction of ethene or ethyne by hydrogen under pressure in the presence of a nickel catalyst, or by the electrolysis of a solution of potassium elhanoate. It has the general properties of the paraffins. Used in low-temperature refrigeration plant. 

Isoparaffins have boiling points lower than normal paraffins witTilHe same number of carbon atoms. Table 1.1 presents some physical properties of selected paraffins... 

The powerful solvent properties of dimethylsulfoxide (DMSO), for example, are used to dissolve selectively the polynuclear aromatics found in oils and paraffins. The procedure is shown in Figure 2.5. 

The properties of the solids most commonly encountered are tabulated. An important problem arises for petroleum fractions because data for the freezing point and enthalpy of fusion are very scarce. The MEK (methyl ethyl ketone) process utilizes the solvent s property that increases the partial fugacity of the paraffins in the liquid phase and thus favors their crystallization. The calculations for crystallization are sensitive and it is usually necessary to revert to experimental measurement. 

The properties of straight run diesel fuels depend on both nature of the crude oil and selected distillation range. Thus the paraffinic crudes give cuts of satisfactory cetane number but poorer cold characteristics the opposite will be observed with naphthenic or aromatic crudes. The increasing demand for diesel fuel could lead the refiner to increase the distillation end point, but that will result in a deterioration of the cloud point. It is generally accepted that a weight gain in yield of 0.5% could increase the cloud point by 1°C. The compromise between quantity and quality is particularly difficult to reconcile. 

The pour point is the lowest temperature at which an oil can still pour while it is cooled, without agitation, under standardized conditions. The pour point of paraffinic bases is linked to the crystallization of n-paraffins. The pour point of naphthenic bases is related to a significant viscosity increase at low temperatures. This property can be improved by additives. 

The characteristic properties of waxes and paraffins can be grouped in three classes... 

The mechanical properties of waxes and solid paraffins are of considerable importance for most applications and numerous tests have been developed for characterizing the hardness, the brittleness, and resistance to rupture. 

These properties concern paraffins that are part of food packaging materials. Their potential toxicity could be attributable to aromatic residues. The latter are thereby characterized directly or indirectly by ... 

Because of the chemical inertness of the paraffin hydrocarbons and of the closely related cycZoparaffins, no satisfactory crystalline derivatives can be prepared. Reliance is therefore placed upon the physical properties (boding point, density, and refractive index) of the redistilled samples. These are collected together in Table III,6. 

Physical Properties. Furfuryl alcohol (2-furanmethanol) [98-00-0] is aHquid, colorless, primary alcohol with a mild odor. On exposure to air, it gradually darkens in color. Furfuryl alcohol is completely miscible with water, alcohol, ether, acetone, and ethyl acetate, and most other organic solvents with the exception of paraffinic hydrocarbons. It is an exceUent, highly polar solvent, and dissolves many resins. 

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