Any substance used for compounding gasoline, including natural gasoline, catalytically reformed products, and additives. Also known as blend stock.



Related Terms

SPECIFIC HEAT

The quantity of heat, expressed in Btu (joule) required to raise the temperature of 1 lb. (kilogram) of a substance 1oF (oC)

CARBAMATES

A white powdery substance produced by the reaction of ammonia with carbon dioxide.

CARCINOGEN

A substance capable of causing cancer.

CRITICAL PRESSURE

The pressure at which a substance exists in the liquid state at its critical temperature. (In other words it is the saturation pressure at the critical temperature)

DENSITY

The mass per unit volume of a substance at specified conditions of temperature and pressure.

LATENT HEAT

The heat required to cause a change in state of a substance from solid to liquid (latent heat of fusion) or from liquid to vapor (latent heat of vaporization). These phase changes occur without change of temperature at the melting point and boiling point, respectively.

LATENT HEAT OF VAPORIZATION

Quantity of heat to change the state of a substance from liquid to vapor (or vice versa) without change of temperature.

SENSIBLE HEAT

Heat energy given to or taken from a substance which raises or lowers its temperature.

SI (Systeme International) Units

An internationally accepted system of units modeled on the metric system consisting of units of length (meter), mass (kilogram), time (second), electric current (ampere), temperature (degrees Kelvin), and amount of substance (mole).

COLLOID

A finely divided organic substance which tends to inhibit the formation of dense scale and results in the deposition of sludge, or causes it to remain in suspension, so that it may be blown from the boiler.

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