1-Methylnaphthalene

Description

1-Methylnaphthalene is a polycyclic aromatic hydrocarbon (PAH). It has a cetane number of zero, and was previously used as the lower reference for cetane number. However, due to the expense and handling difficulty of 1-methylnaphthalene, it was replaced in this capacity by isocetane, with a CN of 15. Formula C11H10 Molar mass 142.201 g/mol CAS Number 90-12-0 Density 1.001 g/cm3 at 25°C (77°F) Purity/Grade 95% Appearence Liquid Melting point/freezing point Melting point/range: -22°C (-8°F) – lit. Initial boiling point and boiling range 240 – 243°C (464 – 469°F) – lit. Flash point 82°C (180°F) – closed cup””