PRF n-Heptane

PRF n-Heptane is a knock engine test reference fuel with 99.78% n-Heptane and 0.1% Isooctane.
Product Overview
PRF n-Heptane is a knock engine test reference fuel with 99.78% n-Heptane and 0.1% Isooctane.

CAS Number: 142-82-5

Synonyms:

Primary reference fuel n-heptane
Product Specifications

Composition, vol %
n-Heptane : 99.78 min
Isooctane : 0.10 max
Dimethylcyclopentane
Lead Content, g/gal : 0.002 max
Nonvolatile Matter, mg/100 mL
Sulfur Content, ppm
Odor : Sweet
Flash point : -4 °C
Method: Tag closed cup
Lower explosion limit : 1 %(V)
Upper explosion limit : 7 %(V)
Oxidizing properties : no
Autoignition temperature : 203.85 °C
Molecular formula : C7H16
Molecular weight : 100.23 g/mol
Pour point : No data available
Boiling point/boiling range : 98 °C
Vapor pressure : 1.60 PSI at 38 °C
Relative density : 0.69 at 16 °C
Density : 5.75 L/G at 20 °C
Water solubility : Negligible
Relative vapor density : 3.4 (Air = 1.0)
Evaporation rate : 3.46
Percent volatile : > 99 %
Conductivity : < 1 pSm at 20 °C


Primary Chemistry: Primary Reference Fuel
Problems Solved
Inferior Primary Reference Fuel Quality
Inconsistent Lab Results for Fuel Testing against Standard
Applications
Engine test reference fuel