Specific gravity gasoline

On more than one occasion, tanks have overflowed because the contents were replaced by a liquid of lower specific gravity. The operators did not realize that the level indicator measured weight, not volume. For example, at one plant a tank that had contained gasoline (specific gravity 0.81) was used for storing pentane (specific gravity 0.69). The tank overflowed when the level indicator said it was only 85% full. The level indicator was a DP cell, which measures weight. 

Crude oil base Speclflc gravity of heavy gasoline cut, Specific gravity of residue (BP > 350°C)... 

Debutanized gasoline cuts from Arabian Light crude. Specific gravity and sulfur content as a... 

Calculated equivalent for avaerage specific gravity gasoline (0.737 specific gravity at 16°C, NIPER Gasoline Report). Calculated equivalent depends on the specific gravity of the gasoline. 

Specific Gravity (SG) — the ratio of the density of a liquid as compared with that of water. Insoluble materials will sink or float in water depending on the SG. Materials heavier than water have SGs >1, and materials lighter than water have SGs <1. Thus, lead, mercury, and carbon tetrachloride with SGs of 11.3, 13.6, and 1.6, respectively, will sink, whereas gasoline with a SG of 0.66 to 0.69, will... 

Chemical Designations - Synonyms No common synonyms Chemical Formula Not pertinent. Observable Characteristics - Physical State (as shipped) Liquid Color. Colorless Odor Gasoline. Physical and Chemical Properties - Physical State at 15 XI and I atm. Liquid Molecular Weight Not pertinent Boiling Point at I atm. 58 - 275, 14 - 135, 287 - 408 Freezing Point Not pertinent Critical Temperature Not pertinent Critical Pressure Not pertinent Specific Gravity 0.71 - 0.75 at 15°C, (liquid) Vapor (Gas) Specific Gravity 3.4 Ratio cf Specific Heats cf Vapor (Gas) Not pertinent Latent Heat of Vaporization 130 - 150, 71 -81, 3.0 - 3.4 Heat of Combustion -18,720, -10,400, -435.4 Heat of Decomposition Not pertinent. 

Aboveground separators are typically large tanks whose function is to slow down the flow of the incoming water this allows gravity separation of the less dense gasoline emulsions.19,41 Separators are composed of two or more chambers. The first chamber is used for the deposition of settleable solids, and the second is used for the separation of liquids of dissimilar specific gravities and the removal of the lighter liquid. 

Other considerations for natural gasoline are copper corrosion (ASTM D130 IP 154, IP 411) and specific gravity (ASTM D1298 IP 160), the latter determination being necessary for measurement and transportation. 

Some specific gravities of common petroleum liquids are 1 to 1.1 for asphalt, 0.8 for gasoline, and 0.6 for naphtha. 

Commercial value of a petroleum liquid can be estimated quickly through measurement of the following physical characteristics . specific gravity, gasoline and kerosene content, sulfur content, asphalt content, pour point, and cloud point. 

Ethanol is a single compound, like methanol, and nearly one and one-half times as heavy as methanol but still much lighter than the typical hydrocarbons that make up gasoline. The specific gravity of ethanol is higher than gasoline (and... 

Paushkin and Lipatov (286) added 10% boron fluoride to silica-alumina and to activated charcoal for use in cracking a crude oil fraction at 310-510°. Over silica-alumina at 400° or higher the amount of olefins was about half that obtained with silica-alumina alone. The amount of gasoline obtained was increased 15 % or more. In the case of charcoal, the polymerizing effect of boron fluoride reduced the yield and increased the specific gravity. 

Related Calculations. For liquids heavier than water, S = 145/(145— Be). When the SSU viscosity is greater than 100 s, k = 0.220 SSU — 135/SSU. Use these relations for any liquid—brine, gasoline, crude oil, kerosene, Bunker C, diesel oil, etc. Consult the Pipe Friction Manual and King and Crocker—Piping Handbook for tabulations of typical viscosities and specific gravities of various liquids. 

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